fix some bugs

2026-09-29 21:30:41 +03:00 · 2026-09-28 17:50:25 +03:00
parent 30b7c9bc9e
commit 06dd7d7059
18 changed files with 899 additions and 170 deletions
--- a/Daemons/10micron_stellarium/10micron_commands.h
+++ b/Daemons/10micron_stellarium/10micron_commands.h
@@ -19,7 +19,7 @@
 #pragma once

 // commands
-#define CMD_SHUTDOWN        ":shutdown#"  // TODO!
+#define CMD_SHUTDOWN        ":shutdown#"
 #define CMD_TRKSTART        ":AP#"
 #define CMD_TRKSTOP         ":AL#"
 #define CMD_GOTOAZ          ":MA#"
--- a/Daemons/10micron_stellarium/CMakeLists.txt
+++ b/Daemons/10micron_stellarium/CMakeLists.txt
@@ -4,7 +4,7 @@ set(PROJ mountdaemon_10micron)
 project(${PROJ})

 set(MAJOR_VERSION "0")
-set(MID_VERSION "1")
+set(MID_VERSION "2")
 set(MINOR_VERSION "1")
 set(VERSION "${MAJOR_VERSION}.${MID_VERSION}.${MINOR_VERSION}")

@@ -36,7 +36,7 @@ aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} SOURCES)

 ###### pkgconfig ######
 find_package(PkgConfig REQUIRED)
-pkg_check_modules(MODULES REQUIRED usefull_macros>=0.3.2 erfa>=2.0.0)
+pkg_check_modules(MODULES REQUIRED usefull_macros>=0.3.5 erfa>=2.0.0)

 # change wrong behaviour with install prefix
 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND CMAKE_INSTALL_PREFIX MATCHES "/usr/local")
@@ -57,7 +57,7 @@ target_link_libraries(${PROJ} ${MODULES_LIBRARIES} -lweather -lm)
 # -D
 add_definitions(-D_XOPEN_SOURCE=1234 -D_DEFAULT_SOURCE -D_GNU_SOURCE
 		-DPACKAGE_VERSION=\"${VERSION}\" -DMINOR_VERSION=\"${MINOR_VERSION}\" 
-		-DMID_VERSION=\"${MID_VERSION}\" -DMAJOR_VERSION=\"${MAJOR_VESION}\"
+		-DMID_VERSION=\"${MID_VERSION}\" -DMAJOR_VERSION=\"${MAJOR_VERSION}\"
 		)

 # Installation of the program
--- a/Daemons/10micron_stellarium/Readme.md
+++ b/Daemons/10micron_stellarium/Readme.md
@@ -0,0 +1,496 @@
+# mountdaemon_10micron
+
+A daemon for controlling 10Micron equatorial mounts (e.g. GM4000HPS) over a serial port. It exposes
+a text command interface for local clients, a binary Stellarium-protocol interface for planetarium
+software, and periodically publishes the current telescope state into a FITS-header file for
+downstream acquisition software.
+
+The daemon is written in C (C23), uses [ERFA](https://github.com/liberfa/erfa) for all astronomical
+computations, [usefull_macros](https://github.com/eddyem/snippets_library) for utility routines,
+and optionally [weather
+proxy](https://github.com/eddyem/small_tel/tree/master/Daemons/weather_proxy) for getting meteo data.
+
+---
+
+## Table of contents
+
+1. [Overview](#overview)
+2. [Building and installation](#building-and-installation)
+3. [Running the daemon](#running-the-daemon)
+4. [Command-line options and configuration file](#command-line-options-and-configuration-file)
+5. [Astronomical parameters](#astronomical-parameters)
+6. [Coordinate systems](#coordinate-systems)
+7. [Network interfaces](#network-interfaces)
+   - [Command socket](#command-socket)
+   - [Stellarium socket](#stellarium-socket)
+8. [Command reference](#command-reference)
+9. [FITS-header file](#fits-header-file)
+10. [Emulation mode](#emulation-mode)
+11. [Signals and process management](#signals-and-process-management)
+12. [Architecture](#architecture)
+13. [Known limitations](#known-limitations)
+
+---
+
+## Overview
+
+`mountdaemon_10micron` connects to a 10Micron mount over a serial line (default `/dev/ttyUSB0` at
+115200 baud) and performs three independent jobs:
+
+1. **Serves a local text command interface** — clients send newline-terminated commands (`tagra`,
+`gotord`, `park`, …) over a TCP or UNIX socket and receive plain `key=value` replies. This is the
+primary interface for an observatory control system.
+2. **Serves a Stellarium-compatible binary protocol** — a planetarium program (Stellarium, Cartes
+du Ciel, etc.) can connect to a second TCP socket, read the current telescope position, and issue
+goto commands. This allows visual pointing with the planetarium.
+3. **Writes a FITS-header file** — at least every `MOUNT_CHECK_T` seconds the daemon writes a fresh
+FITS-header block with the current telescope position, sidereal time, MJD and place data.
+The file is atomically replaced so a downstream acquisition program can read it at any moment.
+
+Additionally, the daemon:
+- corrects the mount's internal clock and refraction model once per hour from local weather data;
+- parks the mount automatically if the weather feed is lost while tracking;
+- reconnects to the mount if the serial link drops;
+- supports an **emulation mode**, in which the mount is simulated locally — useful for testing
+clients without hardware.
+
+The daemon is built around the ERFA library, so coordinates are rigorously converted between ICRS
+(J2000), CIRS, observed, and horizontal systems, and refraction is accounted for using the current
+pressure and temperature.
+
+---
+
+## Building and installation
+
+### Dependencies
+
+- a C23-capable compiler (GCC 13+ or Clang 16+);
+- CMake ≥ 4.0;
+- **pkg-config**;
+- **liberfa** ≥ 2.0.0;
+- **usefull_macros** ≥ 0.3.5;
+- **libweather** (linked with `-lweather`);
+- `libm`.
+
+### Build
+
+```sh
+git clone --depth=1 https://github.com/eddyem/small_tel
+cd Daemons/10micron_stellarium
+mkdir build && cd build
+cmake ..
+make
+```
+
+Options recognised by CMake:
+
+| Option   | Default | Meaning                                           |
+|----------|---------|---------------------------------------------------|
+| `DEBUG`  | `OFF`   | Build in debug mode (`-Og -g3 -Werror`, no fork). |
+
+### Install
+
+```sh
+su -c "make install"
+```
+
+The binary is installed to `<prefix>/bin/mountdaemon_10micron`. The default prefix is `/usr/local`.
+
+---
+
+## Running the daemon
+
+```sh
+mountdaemon_10micron -d /dev/ttyS0 -S 9600 \
+                     --latitude 43.65:39:00 --longitude 41.44:06:00 --altitude 2070 \
+                     --dut1 0.1 -p :10000 -P localhost:10001 -v
+```
+
+The daemon forks a supervisor process that re-spawns the working process if it crashes. It writes a
+PID-file (`/tmp/mountdaemon_10micron.pid` by default), which is removed on clean exit.
+
+Stopping the daemon: send `SIGTERM` (or `SIGINT`, `SIGQUIT`) to the supervisor PID from
+the PID-file. The supervisor kills its child and exits.
+
+---
+
+## Command-line options and configuration file
+
+All options may be given either on the command line or in a configuration file passed with `-c
+<file>`. Command-line values always take precedence over the configuration file. The config file
+uses `key = value` lines — key names are the long option names below without the leading `--`.
+
+| Long option        | Short | Argument | Default                          | Description                                                            |
+|--------------------|-------|----------|----------------------------------|------------------------------------------------------------------------|
+| `--device`         | `-d`  | string   | `/dev/ttyUSB0`                   | Serial device connected to the mount.                                  |
+| `--emulation`      | `-e`  | —        | `0`                              | Run in emulation mode (no hardware needed).                            |
+| `--logfile`        | `-l`  | string   | no                               | Redirect log output to this file.                                      |
+| `--hdrfile`        | `-o`  | string   | `/tmp/10micron.fitsheader`       | File to write the FITS-header into.                                    |
+| `--pidfile`        |       | string   | `/tmp/mountdaemon_10micron.pid`  | PID-file path.                                                         |
+| `--port`           | `-p`  | string   | `:10000`                         | Port (or `host:port`) for the Stellarium server.                       |
+| `--cmdport`        | `-P`  | string   | `localhost:10001`                | Port (or UNIX-socket path) for the command console.                    |
+| `--sleept`         | `-t`  | int      | `100`                            | Main-loop sleep, µs.                                                   |
+| `--isunix`         | `-U`  | —        | `0`                              | Use a UNIX-domain socket for `cmdport`.                                |
+| `--sertmout`       | `-T`  | double   | `1.0`                            | Serial answer timeout, seconds.                                        |
+| `--serspeed`       | `-S`  | int      | `115200`                         | Serial speed.                                                          |
+| `--maxclients`     |       | int      | `5`                              | Max clients per socket.                                                |
+| `--mountname`      |       | string   | `"10Micron GM4000HPS"`           | Mount name for the FITS header.                                        |
+| `--verbose`        | `-v`  | —        | `0`                              | Increase verbosity (each `-v` adds a level).                           |
+| `--parka`          | `-A`  | string   | built-in                         | Parking azimuth, degrees or `DD:MM:SS`.                                |
+| `--parkz`          | `-Z`  | string   | built-in                         | Parking zenith distance.                                               |
+| `--dut1`           |       | double   | `0`                              | UT1 − UTC, seconds.                                                    |
+| `--polarx`         |       | double   | `0`                              | IERS polar-motion X, arcsec.                                           |
+| `--polary`         |       | double   | `0`                              | IERS polar-motion Y, arcsec.                                           |
+| `--latitude`       |       | string   | built-in                         | Site latitude (degrees, `DD:MM:SS`, or decimal).                       |
+| `--longitude`      |       | string   | built-in                         | Site longitude (degrees, positive east).                               |
+| `--altitude`       |       | string   | built-in                         | Site altitude, metres.                                                 |
+| `--help`           | `-h`  | —        | —                                | Show help.                                                             |
+| `--config`         | `-c`  | string   | —                                | Read options from this file.                                           |
+
+### Example configuration file
+
+```ini
+device     = /dev/serial/by-id/usb-FTDI_USB-RS232-if00-port0
+serspeed   = 115200
+sertmout   = 1.5
+port       = :10000
+cmdport    = /tmp/mountdaemon.sock
+isunix     = 1
+sleept     = 200
+maxclients = 10
+latitude   = 43.65:39:00
+longitude  = 41.44:06:00
+altitude   = 2070
+dut1       = 0.1
+polarx     = 0.05
+polary     = 0.12
+mountname  = "10Micron GM4000HPS"
+logfile    = /var/log/mountdaemon.log
+```
+
+---
+
+## Astronomical parameters
+
+The following parameters influence pointing accuracy and FITS-header content. They may be set at
+start-up via CLI/config, and (except place data) also at runtime via network commands.
+
+| Parameter       | Runtime command | Units    | Typical range      | Notes                                                     |
+|-----------------|-----------------|----------|--------------------|-----------------------------------------------------------|
+| Site latitude   | —               | degrees  | −90 … +90          | Set at start-up only.                                     |
+| Site longitude  | —               | degrees  | −180 … +180 (E+)   | Set at start-up only.                                     |
+| Site altitude   | —               | metres   | −500 … +9000       | Set at start-up only.                                     |
+| DUT1            | `dut1`          | seconds  | −1 … +1            | UT1 − UTC. Affects LST by up to ±15″, affecting pointing. |
+| Polar motion X  | `polarx`        | arcsec   | ±1000              | IERS X coordinate of celestial pole.                      |
+| Polar motion Y  | `polary`        | arcsec   | ±1000              | IERS Y coordinate of celestial pole.                      |
+
+If not set, the daemon uses internal defaults (site: SAO RAS, altitude 2070 m). DUT1 and polar
+motion default to 0.
+
+---
+
+## Coordinate systems
+
+The daemon distinguishes the following frames:
+
+| Frame                       | Notation   | Units    | Notes                                                    |
+|-----------------------------|------------|----------|----------------------------------------------------------|
+| Catalog (ICRS / J2000)      | `J2000`    | RA: hours, Dec: degrees | Coordinates entered by the user via `tagra/tagdec`.       |
+| Epoch of date (mean equinox)| `Jnow`     | RA: hours, Dec: degrees | Used internally for pointing.                             |
+| CIRS (geocentric apparent)  | —          | radians  | Result of `eraAtci13`.                                    |
+| Observed (with refraction)  | —          | radians  | Result of `eraAtco13`.                                    |
+| Horizontal                  | `Az/Zd`    | degrees  | Azimuth, clockwise from North. ZD = 90° − altitude.       |
+
+- **Target epoch** is stored as an MJD. By default it is J2000 (`ERFA_DJM00` = 51544.5). It can be
+set to any epoch via the `tagmjd` command.
+- The command `gotord` converts the input coordinates from the target epoch to *Jnow* using
+`JXtoJnow()` before sending to the mount.
+- The command `gotorh` interprets the input as an **hour angle** and converts to RA using the
+current LST.
+- The current telescope position returned by the mount is in *Jnow*, and the FITS-header records it
+under `RA`, `HA`, `DEC`, `AZ`, `ZD`.
+
+---
+
+## Network interfaces
+
+### Command socket
+
+Default address: `localhost:10001` (TCP) or a UNIX socket if `--isunix` is set.
+
+Protocol: **line-oriented text**. A client sends one command per line, optionally with a value:
+
+```
+tagra = 12.345
+tagdec = +45:30:00
+gotord
+```
+
+The daemon replies with `key=value` (newline-terminated) for getters, or nothing (only implicit
+success/failure) for setters/actions. Commands may be issued one at a time or in a stream. All
+sockets are multiplexed by a thread-per-client model inside `usefull_macros`'s `sl_sock`
+infrastructure.
+
+Up to `--maxclients` simultaneous clients are accepted. If more try to connect, they receive `Try
+later: too much clients connected` and the connection is closed.
+
+Values may be given either as a decimal number (`12.345`, `-26.5`) or as `DD:MM:SS` / `HH:MM:SS`
+(sexagesimal). Angles are interpreted as degrees unless the field name (RA, HA, LST) explicitly
+implies hours.
+
+### Stellarium socket
+
+Default address: `:10000` (all interfaces, port 10000). Protocol: **binary little-endian**,
+according to Stellarium's "Telescope Control" plugin specification.
+
+Incoming (client → server) message, 20 bytes:
+
+| Field  | Type      | Meaning                                                |
+|--------|-----------|--------------------------------------------------------|
+| `len`  | `uint16`  | Total message length (`20`).                            |
+| `type` | `uint16`  | `0`.                                                    |
+| `time` | `uint64`  | µs since epoch (unused).                                |
+| `RA`   | `uint32`  | Target RA. `0` = 0h, `0x80000000` = 12h, `0x100000000` = 24h. |
+| `DEC`  | `int32`   | Target Dec. `-0x40000000` = −90°, `0x40000000` = +90°. |
+
+Outgoing (server → client) message, 24 bytes: same fields plus a trailing `int32 status` (0 = ok,
+other = error).
+
+The daemon treats incoming messages as `tagra`/`tagdec` in the current epoch (which for Stellarium
+is normally J2000). It does **not** automatically start a slew — the client must send `gotord` on
+the command socket.
+
+---
+
+## Command reference
+
+All commands are case-sensitive. Getter command names are typically used without an argument;
+setter commands require an argument of the indicated type.
+
+### Target coordinates (input)
+
+| Command   | Type   | Units              | Description                                                      |
+|-----------|--------|--------------------|------------------------------------------------------------------|
+| `tagra`   | get/set| hours (0…24)       | Target right ascension.                                          |
+| `tagdec`  | get/set| degrees (−90…+90)  | Target declination.                                              |
+| `tagha`   | get/set| hours              | Target hour angle (alternative to RA).                           |
+| `tagaz`   | get/set| degrees (0…360)    | Target azimuth (clock from North).                               |
+| `tagzd`   | get/set| degrees (0…90)     | Target zenith distance.                                          |
+| `tagmjd`  | get/set| MJD or `J<year>`   | Epoch of the input coordinates. `J2050` = 2050.0, `51544.5` = J2000. |
+
+### Pointing
+
+| Command   | Description                                                                                 |
+|-----------|---------------------------------------------------------------------------------------------|
+| `gotord`  | Slew to the input RA/Dec (converted from target epoch to Jnow) and start tracking.          |
+| `gotorh`  | Slew using the stored hour angle: RA = LST − HA, then track.                                |
+| `gotoaz`  | Slew to the input Az/ZD and stop.                                                           |
+| `stop`    | Stop any motion (emergency stop).                                                           |
+| `stoptrk` | Stop tracking but leave the mount in place.                                                 |
+| `track`   | Start tracking from the current position.                                                   |
+| `park`    | Slew to the parking position (see `parkaz`/`parkzd`).                                       |
+| `shutdown`| Power off the mount. Requires a numeric key to confirm (see below).                         |
+
+### State queries
+
+| Command   | Units    | Description                                                     |
+|-----------|----------|-----------------------------------------------------------------|
+| `status`  | —        | Human-readable mount status.                                    |
+| `telra`   | hours    | Current telescope RA (Jnow).                                    |
+| `telha`   | hours    | Current telescope hour angle.                                   |
+| `teldec`  | degrees  | Current telescope declination (Jnow).                           |
+| `telaz`   | degrees  | Current telescope azimuth.                                      |
+| `telzd`   | degrees  | Current telescope zenith distance.                              |
+| `lst`     | hours    | Local sidereal time.                                            |
+| `unixt`   | seconds  | Server UNIX time.                                               |
+
+`tel*` commands return `RESULT_FAIL` if the weather feed is lost or the mount is in `Error` state —
+this prevents a client from acting on stale coordinates.
+
+### Place and almanac data
+
+| Command   | Type   | Description                                                     |
+|-----------|--------|-----------------------------------------------------------------|
+| `place`   | get    | Site latitude, longitude, altitude.                             |
+| `dut1`    | get/set| UT1 − UTC, seconds.                                             |
+| `polarx`  | get/set| IERS X pole coordinate, arcsec.                                 |
+| `polary`  | get/set| IERS Y pole coordinate, arcsec.                                 |
+
+Place data can only be set at start-up (via CLI/config).
+
+### Parking
+
+| Command   | Type   | Description                          |
+|-----------|--------|--------------------------------------|
+| `parkaz`  | get/set| Parking azimuth, degrees.            |
+| `parkzd`  | get/set| Parking zenith distance, degrees.    |
+
+### Shutdown
+
+The `shutdown` command implements a simple confirmation handshake:
+
+1. A client sends `shutdown` **without** an argument. The daemon generates a random key, stores it
+with a timestamp, and returns `shutdown=<key>`.
+2. Within 5 minutes, a client must send `shutdown = <key>`. If the key matches, the mount is powered
+off.
+
+This protects against accidental shutdown commands.
+
+---
+
+## FITS-header file
+
+Every `MOUNT_CHECK_T` (0.5 s) the daemon collects the current state and writes a complete
+FITS-header block into the file given by `--hdrfile`. The write is atomic: a temporary file is
+created with `mkstemp()` and `rename()`d over the destination, so a reader never sees a partial
+block.
+
+The following keywords are written (only if meaningful):
+
+| Keyword          | Comment                                                              |
+|------------------|----------------------------------------------------------------------|
+| `TIMESYS`        | `'UTC'`.                                                             |
+| `ORIGIN`         | `'SAO RAS'`.                                                         |
+| `MOUNTNAM`       | Mount name (from `--mountname`).                                     |
+| `POLARX`         | X pole coordinate, arcsec (if non-zero).                             |
+| `POLARY`         | Y pole coordinate, arcsec (if non-zero).                             |
+| `DUT1`           | UT1 − UTC, seconds (if non-zero).                                    |
+| `INPRA`,`INPDEC` | Input target RA/Dec, if the last input was celestial.                |
+| `INPAZ`,`INPZD`  | Input target Az/ZD, if the last input was horizontal.                |
+| `TAGRA`,`TAGDEC` | Last **slewed-to** target, always celestial.                         |
+| `RA`,`HA`,`DEC`  | Current telescope position in *Jnow*.                                |
+| `AZ`,`ZD`        | Current telescope position in the horizontal frame.                  |
+| `TELSTAT`        | Human-readable mount status.                                         |
+| `INPEQUIN`       | Epoch (year) of the input coordinates.                               |
+| `EQUINOX`        | Epoch (year) of the current telescope coordinates.                   |
+| `MJD`            | MJD of the header.                                                   |
+| `PIERSIDE`       | Pier side of the mount (`'E'`/`'W'`).                                |
+| `ELEVAT`         | Site altitude, m.                                                    |
+| `LONGITUD`       | Site longitude, degrees east.                                        |
+| `LATITUDE`       | Site latitude, degrees north.                                        |
+| `LSTEND`         | Local sidereal time, hours.                                          |
+
+Weather keywords (`HUMIDITY`, `PRESSURE`, `EXTTEMP`, `RAIN`, `SKYQUAL`, `WINDSPD`, `WINDMAX`,
+`WEATTIME`) are intentionally **not** written by this daemon — the weather data is expected to be
+merged by the weather daemon's own header writer.
+
+---
+
+## Emulation mode
+
+Started with `-e`/`--emulation`, the daemon does not open the serial port and instead simulates a
+mount with the following behaviour:
+
+- Start-up position: Az = 180°, ZD = 80°.
+- Slew rates: 5°/s in RA, 8°/s in Dec.
+- Slew completes when the angular distance is below 1″ or when the modelled time has elapsed.
+- `ZD_LIMIT = 80°` — slews beyond this limit are refused or stopped.
+- **Meridian flip** is simulated: if reaching the target from the "flipped" side is faster, the
+mount will go through a flipped state (Dec > 90°, RA += 12h).
+- Statuses `Stopped`, `Slewing`, `Tracking` are fully modelled; the others are not.
+
+This is useful for developing clients (control-system, planetarium) without access to real
+hardware. All command-socket and Stellarium-socket behaviour is identical to the real-mount mode.
+
+---
+
+## Signals and process management
+
+The daemon runs as a supervisor + worker pair:
+
+- The **supervisor** (`main()` before `fork()`) watches the child, re-spawns it after a crash, and
+holds the PID-file.
+- The **worker** is the actual server: it opens the serial port, listens on sockets, and processes
+commands.
+
+Signals handled:
+
+| Signal      | Action                                                                |
+|-------------|-----------------------------------------------------------------------|
+| `SIGTERM`   | Remove PID-file, kill worker, exit.                                   |
+| `SIGINT`    | Same as `SIGTERM`.                                                    |
+| `SIGQUIT`   | Same as `SIGTERM`.                                                    |
+| `SIGHUP`    | Ignored (may be used later for config-file re-reading)                |
+| `SIGTSTP`   | Ignored (so the daemon can survive `Ctrl-Z` from a shell session).    |
+
+If the worker dies with a non-zero exit status, the supervisor logs the event. If the worker dies
+within 10 minutes of the previous restart, this is treated as a crash-loop and logged with a
+warning.
+
+---
+
+## Architecture
+
+```
+                  ┌─────────────────────────┐
+                  │     supervisor (fork)   │
+                  └────────────┬────────────┘
+                               │ fork + waitpid
+                  ┌────────────▼────────────┐
+   cmd clients ──►│       worker process    │◄── Stellarium clients
+                  │                         │
+                  │  ┌───────────────────┐  │
+                  │  │  cmd_socket (TCP  │  │
+                  │  │  or UNIX, thread  │  │
+                  │  │  per client)      │  │
+                  │  └───────────────────┘  │
+                  │  ┌───────────────────┐  │
+                  │  │  stellarium_sock  │  │
+                  │  │  (TCP, thread     │  │
+                  │  │  per client)      │  │
+                  │  └───────────────────┘  │
+                  │  ┌───────────────────┐  │
+                  │  │  main loop        │  │
+                  │  │  (0.5 s tick)     │  │
+                  │  └────────┬──────────┘  │
+                  │           │             │
+                  └───────────┼─────────────┘
+                              │ serial (mutex-protected)
+                              ▼
+                       ┌──────────────┐
+                       │   10Micron   │
+                       │    mount     │
+                       └──────────────┘
+```
+
+Threading model:
+
+- The **main thread** runs the state-collection loop: every `MOUNT_CHECK_T` seconds it queries
+mount status, coordinates, azimuth, pier side, weather, and updates the FITS header.
+- The **command socket** is served by `sl_sock` which spawns one thread per connected client. All
+command handlers run in those threads; access to the serial device is serialised by `mntdev_mutex`.
+- The **Stellarium socket** spawns one thread per connected client, with each thread performing a
+bidirectional exchange with the client.
+- Shared state (`HDR`, mount status, input coordinates) is protected implicitly — all updates go
+through accessor functions, and the serial port is guarded by `mntdev_mutex`.
+
+Synchronisation primitives:
+
+- `pthread_mutex_t mntdev_mutex` — serialises access to the mount device.
+- `atomic_int mountstatus` — cached mount status visible from any thread.
+- `atomic_int emul_status` — emulation-mode status.
+
+---
+
+## Known limitations
+
+- The daemon assumes a well-behaved serial link; there is no protocol-level retry for corrupted
+responses beyond 3 immediate retries on `mount_status()`.
+- Weather data is read via `libweather`; the format is expected to be stable. If `libweather` is
+unavailable at build time, the code will not build.
+- Emulation mode does not model all mount statuses and does not implement true dual-axis motion; it
+is a kinematic approximation suitable for client development.
+- `mount_corrdata()` uses **local** time for the `:SLDT` command, which matches the 10Micron
+firmware convention; this is intentional and differs from the rest of the daemon, which works in
+UTC.
+- The Stellarium protocol implementation uses JNow coordinates (the DAEMON does not perform the
+JNow→J2000 conversion that some clients expect). Planetarium programs that assume J2000 output may
+show a small offset; this is acceptable for visual pointing but should be considered if used for
+astrometric work.
+
+---
+
+## License
+
+All source files are licensed under **GNU General Public License v3.0** unless stated otherwise...
+
--- a/Daemons/10micron_stellarium/angles.c
+++ b/Daemons/10micron_stellarium/angles.c
@@ -53,27 +53,26 @@ void getDUT(almDut_t *D){

 /**
 * @brief setPlaceData - correct place data to given values
- * @param longitude - degrees, (-180, 180], minus to west
- * @param latitude - degrees, [-90, 90], minus to south
+ * @param longitude - radians, (-180, 180], minus to west
+ * @param latitude - radians, [-90, 90], minus to south
 * @param altitude - meters
 * @return false if some of data wrong
 */
-bool setPlaceData(double longitude, double latitude, double altitude){
-    if(longitude <= -180. || longitude > 180.){
-        WARNX("setPlaceData(): bad longitude (%g)", longitude);
+bool setPlaceData(placeData_t *pd){
+    if(!pd) return false;
+    if(pd->slong <= -M_PI || pd->slong > M_PI){
+        WARNX("setPlaceData(): bad longitude (%g)", pd->slong);
        return false;
    }
-    if(latitude < -90. || latitude > 90.){
-        WARNX("setPlaceData(): bad latitude (%g)", latitude);
+    if(pd->slat < -M_PI_2 || pd->slat > M_PI_2){
+        WARNX("setPlaceData(): bad latitude (%g)", pd->slat);
        return false;
    }
-    if(altitude < -500. || altitude > 9000.){
-        WARNX("setPlaceData(): bad altitude (%g)", altitude);
+    if(pd->salt < -500. || pd->salt > 9000.){
+        WARNX("setPlaceData(): bad altitude (%g)", pd->salt);
        return false;
    }
-    place.salt = altitude;
-    place.slat = DEG2RAD(latitude);
-    place.slong = DEG2RAD(longitude);
+    place = *pd;
    DBG("Change place data: alt=%gm, lat=%gdeg, long=%gdeg", place.salt, RAD2DEG(place.slat), RAD2DEG(place.slong));
    return true;
 }
@@ -94,7 +93,7 @@ char *ra2str(double ra, char buf[RADEC_STR_MAXLEN]){
    ra -= h; ra *= 60.;
    int m = (int)ra;
    ra -= m; ra *= 60.;
-    snprintf(buf, RADEC_STR_MAXLEN, "%d:%d:%.2f", h,m,ra);
+    snprintf(buf, RADEC_STR_MAXLEN, "%d:%02d:%05.2f", h,m,ra);
    buf[RADEC_STR_MAXLEN-1] = 0;
    return buf;
 }
@@ -114,7 +113,7 @@ char *dec2str(double dec, char buf[RADEC_STR_MAXLEN]){
    dec -= d; dec *= 60.;
    int dm = (int)dec;
    dec -= dm; dec *= 60.;
-    snprintf(buf, RADEC_STR_MAXLEN, "%c%d:%d:%.1f",sign,d,dm,dec);
+    snprintf(buf, RADEC_STR_MAXLEN, "%c%d:%02d:%04.1f",sign,d,dm,dec);
    buf[RADEC_STR_MAXLEN-1] = 0;
    return buf;
 }
@@ -128,12 +127,12 @@ bool normAZ(double *a, double *z){
    }
    if(z){
        norm_angle180(z);
-        if(*z > 90. || *z < -90.) return false;
-        if(*z < 0.){
+        if(*z > 90. || *z < 0.) return false;
+        /*if(*z < 0.){
            *z += 90.;
            *a += 180.;
            if(*a >= 360.) *a -= 360.;
-        }
+        }*/
    }
    return true;
 }
@@ -287,11 +286,14 @@ bool str2coord(const char *str, double *val){
        ++str;
    }
    int n = sscanf(str, "%d:%d:%f#", &d, &m, &s);
+    double ang = 0.;
    if(n != 3){
-        DBG("sscanf('%s')=%d", str, 3);
-        return false;
-    }
-    double ang = d + ((double)m)/60. + s/3600.;
+        DBG("sscanf('%s')=%d; try to read double", str, 3);
+        if(!sl_str2d(&ang, str)){
+            WARNX("Wrong number %s", str);
+            return false;
+        }
+    }else ang = d + ((double)m)/60. + s/3600.;
    if(sign == -1) *val = -ang;
    else *val = ang;
    return true;
@@ -443,69 +445,47 @@ bool get_ObsPlace(struct timeval *tval, polarCrds_t *p2000, polarCrds_t *pnow, h
 bool JnowtoJ2000(const polarCrds_t *in, polarCrds_t *out){
    bool ret = false;
    DBG("appRa: %gdegr, appDecl: %gdegr", RAD2DEG(in->ra), RAD2DEG(in->dec));
-#define ERFA(f, ...) do{if(f(__VA_ARGS__)){WARNX("Error in " #f); goto rtn;}}while(0)
+//#define ERFA(f, ...) do{if(f(__VA_ARGS__)){WARNX("Error in " #f); goto rtn;}}while(0)
    sMJD_t MJD;
    if(!get_MJDt(NULL, &MJD)) return false;
    double ri = 0., di = 0., eo = 0.;
    eraAtic13(in->ra, in->dec, MJD.tt1, MJD.tt2, &ri, &di, &eo);
    if(out){
        out->ha = 0.; out->eo = 0.;
-        out->ra = eraAnp(ri + eo);
+        //out->ra = eraAnp(ri - eo);
+        out->ra = ri;
        out->dec = di;
        DBG("JnowtoJ2000: ra=%gdeg, dec=%gdeg", RAD2DEG(out->ra), RAD2DEG(out->dec));
    }
    ret = true;
-#undef ERFA
+//#undef ERFA
    return ret;
 }

 /**
- * @brief J2000toJnow - convert ra/dec between epochs
- * @param in  - J2000 (degrees)
+ * @brief JXtoJnow - convert ra/dec between epochs
+ * @param in  - coordinates for Jx (degrees)
 * @param out - Jnow  (degrees)
+ * @param Jx - Epoch for `in`
 * @return false if failed
 */
-bool J2000toJnow(const polarCrds_t *in, polarCrds_t *out){
-    DBG("J200RA: %gdegr, J200Dec: %gdegr", RAD2DEG(in->ra), RAD2DEG(in->dec));
-    sMJD_t MJD;
+bool JXtoJnow(const polarCrds_t *in, polarCrds_t *out, double Jx){
+    DBG("JXRA: %ghrs, JXDec: %gdegr; epoch X: %g", RAD2HRS(in->ra), RAD2DEG(in->dec), Jx);
    if(!in) return false;
-    if(!get_MJDt(NULL, &MJD)) return false;
    // these values could be changed (e.g. by user's input)
    double pr = 0.0;     // RA proper motion (radians/year)
    double pd = 0.0;     // Dec proper motion (radians/year)
    double px = 0.0;     // parallax (arcsec)
    double rv = 0.0;     // radial velocity (km/s, positive if receding)
    double ri, di, eo;
-    eraAtci13(in->ra, in->dec, pr, pd, px, rv, MJD.tt1, MJD.tt2, &ri, &di, &eo);
+    eraAtci13(in->ra, in->dec, pr, pd, px, rv, ERFA_DJM0, Jx, &ri, &di, &eo);
+    LOGDBG("ri: %ghrs, eo: %ghrs, di: %gdeg", RAD2HRS(ri), RAD2HRS(eo), RAD2DEG(di));
    if(out){
-        out->ra  = eraAnp(ri - eo);
+        out->ha = 0.; out->eo = 0.;
+        //out->ra  = eraAnp(ri - eo);
+        out->ra = ri;
        out->dec = di;
    }
    return true;
 }

-
-
-#if 0
-typedef enum {
-    WEATHER_GOOD = 0,               // may start observations
-    WEATHER_BAD = 1,                // cannot start but can continue if want
-    WEATHER_TERRIBLE = 2,           // close & park: wind, precipitation, humidity etc.
-    WEATHER_PROHIBITED = 3,         // force closing & parking; power off equipment, ready to power off computer
-} weather_condition_t;
-
-typedef struct {
-    weather_condition_t weather;    // conditions: field "WEATHER"
-    float windmax;                  // maximal wind for last hour, m/s: "WINDMAX1"
-    float wind;                     // current wind speed, m/s: "WIND"
-    float clouds;                   // sky "quality" (>2500 - OK): "CLOUDS"
-    float exttemp;                  // external temperature, degC: "EXTTEMP"
-    float pressure;                 // atm. pressure, mmHg: "PRESSURE"
-    float humidity;                 // humidity, percents: "HUMIDITY"
-    int rain;                       // ==1 when rainy: "PRECIP"
-    int forceoff;                   // force power off (AC power lost or lightning)
-    time_t last_update;             // value of "TMEAS"
-} weather_data_t;
-
-int get_weather_data(weather_data_t *data);
-#endif
--- a/Daemons/10micron_stellarium/angles.h
+++ b/Daemons/10micron_stellarium/angles.h
@@ -80,9 +80,7 @@ void eq2hor(polarCrds_t *pc, horizCrds_t *h, double sidTime);
 void r2sHMS(double radians, char *hms, int len);
 void r2sDMS(double radians, char *hms, int len);
 void d2sDMS(double degrees, char *dms, int len);
-void hor2eq(horizCrds_t *h, polarCrds_t *pc, double sidTime);
-void eq2horH(polarCrds_t *pc, horizCrds_t *h);
-void eq2hor(polarCrds_t *pc, horizCrds_t *h, double sidTime);
+
 bool get_MJDt(struct timeval *tval, sMJD_t *MJD);
 bool get_LST(sMJD_t *mjd, double *LST);
 bool get_ObsPlace(struct timeval *tval, polarCrds_t *p2000, polarCrds_t *pnow, horizCrds_t *hnow);
@@ -90,5 +88,8 @@ bool get_ObsPlace(struct timeval *tval, polarCrds_t *p2000, polarCrds_t *pnow, h
 bool setDUT(almDut_t *D);
 void getDUT(almDut_t *D);

-bool setPlaceData(double longitude, double latitude, double altitude);
+bool setPlaceData(placeData_t *pd);
 void getPlaceData(placeData_t *pd);
+
+bool JnowtoJ2000(const polarCrds_t *in, polarCrds_t *out);
+bool JXtoJnow(const polarCrds_t *in, polarCrds_t *out, double Jx);
--- a/Daemons/10micron_stellarium/args.c
+++ b/Daemons/10micron_stellarium/args.c
@@ -50,20 +50,28 @@ static parameters_t Conf = {0};
 #define STR(x) STR_HELPER(x)

 #define OPTIONS(Stor) \
-    {"device",  NEED_ARG,   NULL,   'd',    arg_string, APTR(&Stor.device),    "serial device name"}, \
-    {"emulation",NO_ARGS,   NULL,   'e',    arg_int,    APTR(&Stor.emulation), "run in emulation mode"},  \
-    {"logfile", NEED_ARG,   NULL,   'l',    arg_string, APTR(&Stor.logfile),   "file to save logs"}, \
-    {"hdrfile", NEED_ARG,   NULL,   'o',    arg_string, APTR(&Stor.crdsfile),  "file to save FITS-header with coordinates and time (default: " DEFAULT_FITSHDR ")"}, \
-    {"pidfile", NEED_ARG,   NULL,     0,    arg_string, APTR(&Stor.pidfile),   "pidfile (default: " DEFAULT_PIDFILE ")"}, \
-    {"port",    NEED_ARG,   NULL,   'p',    arg_string, APTR(&Stor.port),      "port for stellaruim's connect (default: " DEFAULT_PORT ")"}, \
-    {"cmdport", NEED_ARG,   NULL,   'P',    arg_string, APTR(&Stor.cmdnode),   "port or UNIX-socket path to connect for command console (default: " DEFAULT_CMDNODE ")"}, \
-    {"sleept",  NEED_ARG,   NULL,   't',    arg_int,    APTR(&Stor.sleept),    "time of servers' sleeping in main cycle, us (default: " STR(DEFAULT_SLEEP_T) " us)"}, \
-    {"isunix",  NO_ARGS,    NULL,   'U',    arg_int,    APTR(&Stor.isunix),    "use UNIX-socket for cmdport"}, \
-    {"sertmout",NEED_ARG,   NULL,   'T',    arg_double, APTR(&Stor.sertmout),  "serial timeout, seconds (default: " STR(DEFAULT_SERTMOUT) " s)"}, \
-    {"serspeed",NEED_ARG,   NULL,   'S',    arg_int,    APTR(&Stor.serspeed),  "serial speed (default: " STR(DEFAULT_SERSPEED) ")"}, \
-    {"maxclients",NEED_ARG, NULL,     0,    arg_int,    APTR(&Stor.maxclients),"max amount of clients connected to one socket (default: " STR(DEFAULT_MAXCLIENTS) ")"}, \
-    {"mountname",NEED_ARG,  NULL,     0,    arg_string, APTR(&Stor.mountname), "mount name (default: " DEFAULT_MOUNT_NAME ")"},  \
-    {"verbose", NO_ARGS,    NULL,   'v',    arg_none,   APTR(&Stor.verbose),   "verbose level (each -v increases it)"}, \
+    {"device",  NEED_ARG,   NULL,   'd',    arg_string, APTR(&Stor.device),     "serial device name"}, \
+    {"emulation",NO_ARGS,   NULL,   'e',    arg_int,    APTR(&Stor.emulation),  "run in emulation mode"},  \
+    {"logfile", NEED_ARG,   NULL,   'l',    arg_string, APTR(&Stor.logfile),    "file to save logs"}, \
+    {"hdrfile", NEED_ARG,   NULL,   'o',    arg_string, APTR(&Stor.crdsfile),   "file to save FITS-header with coordinates and time (default: " DEFAULT_FITSHDR ")"}, \
+    {"pidfile", NEED_ARG,   NULL,     0,    arg_string, APTR(&Stor.pidfile),    "pidfile (default: " DEFAULT_PIDFILE ")"}, \
+    {"port",    NEED_ARG,   NULL,   'p',    arg_string, APTR(&Stor.port),       "port for stellaruim's connect (default: " DEFAULT_PORT ")"}, \
+    {"cmdport", NEED_ARG,   NULL,   'P',    arg_string, APTR(&Stor.cmdnode),    "port or UNIX-socket path to connect for command console (default: " DEFAULT_CMDNODE ")"}, \
+    {"sleept",  NEED_ARG,   NULL,   't',    arg_int,    APTR(&Stor.sleept),     "time of servers' sleeping in main cycle, us (default: " STR(DEFAULT_SLEEP_T) " us)"}, \
+    {"isunix",  NO_ARGS,    NULL,   'U',    arg_int,    APTR(&Stor.isunix),     "use UNIX-socket for cmdport"}, \
+    {"sertmout",NEED_ARG,   NULL,   'T',    arg_double, APTR(&Stor.sertmout),   "serial timeout, seconds (default: " STR(DEFAULT_SERTMOUT) " s)"}, \
+    {"serspeed",NEED_ARG,   NULL,   'S',    arg_int,    APTR(&Stor.serspeed),   "serial speed (default: " STR(DEFAULT_SERSPEED) ")"}, \
+    {"maxclients",NEED_ARG, NULL,     0,    arg_int,    APTR(&Stor.maxclients), "max amount of clients connected to one socket (default: " STR(DEFAULT_MAXCLIENTS) ")"}, \
+    {"mountname",NEED_ARG,  NULL,     0,    arg_string, APTR(&Stor.mountname),  "mount name (default: " DEFAULT_MOUNT_NAME ")"},  \
+    {"verbose", NO_ARGS,    NULL,   'v',    arg_none,   APTR(&Stor.verbose),    "verbose level (each -v increases it)"}, \
+    {"parka",   NEED_ARG,   NULL,   'A',    arg_string, APTR(&Stor.parkA),      "azimuth of parking point"}, \
+    {"parkz",   NEED_ARG,   NULL,   'Z',    arg_string, APTR(&Stor.parkZ),      "zenith distance of parking point"}, \
+    {"dut1",    NEED_ARG,   NULL,   0,      arg_double, APTR(&Stor.DUT1),       "set DUT1 value (s)"}, \
+    {"polarx",  NEED_ARG,   NULL,   0,      arg_double, APTR(&Stor.polarx),     "set polar X value (m)"}, \
+    {"polary",  NEED_ARG,   NULL,   0,      arg_double, APTR(&Stor.polary),     "set polar Y value (m)"}, \
+    {"latitude",NEED_ARG,   NULL,   0,      arg_string, APTR(&Stor.latitude),   "latitude of mount"}, \
+    {"altitude",NEED_ARG,   NULL,   0,      arg_string, APTR(&Stor.altitude),   "altitude of mount"}, \
+    {"longitude",NEED_ARG,  NULL,   0,      arg_string, APTR(&Stor.longitude),  "longitude of mount"}, \


 static sl_option_t cmdlnopts[] = {
@@ -126,7 +134,6 @@ static void chkdbl(double *conf, double *cmd, double dflt){
 parameters_t *parse_cmdline(int *argc, char ***argv){
    sl_parseargs(argc, argv, cmdlnopts);
    if(help) sl_showhelp(-1, cmdlnopts);
-    //if(!conffile) return &G;
    // fix for conffile
    if(conffile){
        if(!sl_conf_readopts(conffile, confopts)){ // show conf help
@@ -150,5 +157,13 @@ parameters_t *parse_cmdline(int *argc, char ***argv){
    DBLCHKD(sertmout, DEFAULT_SERTMOUT);
    INTCHKD(serspeed, DEFAULT_SERSPEED);
    INTCHKD(maxclients, DEFAULT_MAXCLIENTS);
+    STRCHK(parkA);
+    STRCHK(parkZ);
+    STRCHK(longitude);
+    STRCHK(latitude);
+    STRCHK(altitude);
+    DBLCHK(DUT1);
+    DBLCHK(polarx);
+    DBLCHK(polary);
    return &G;
 }
--- a/Daemons/10micron_stellarium/args.h
+++ b/Daemons/10micron_stellarium/args.h
@@ -26,6 +26,11 @@ typedef struct{
    char *logfile;          // logging to this file
    char *crdsfile;         // file where FITS-header should be written
    char *mountname;        // set mount name for FITS-header
+    char *parkA;            // parking coordinates (degrees or "DD:MM:SS")
+    char *parkZ;
+    char *latitude;         // place coordinates
+    char *longitude;
+    char *altitude;         // place altitude
    int emulation;          // run in emulation mode
    int verbose;            // verbose level
    int sleept;             // server's sleeping in main cycle time
@@ -33,6 +38,8 @@ typedef struct{
    int serspeed;           // serial speed, baud
    int maxclients;         // max amount of clients connected to one socket
    double sertmout;        // serial timeout, s
+    double DUT1;            // DUT1 value
+    double polarx, polary;  // polar coordinates, m
 } parameters_t;

 parameters_t *parse_cmdline(int *argc, char ***argv);
--- a/Daemons/10micron_stellarium/emulation.c
+++ b/Daemons/10micron_stellarium/emulation.c
@@ -215,7 +215,9 @@ void emulation_stop(){
 void emul_start_tracking(){
    if(MNT_S_TRACKING == emulation_status()) return;
    atomic_store(&emul_status, MNT_S_TRACKING);
-    // TODO: convert current A/Z into RA/Dec and set zero speeds by both axes
+    double LST;
+    if(!get_LST(NULL, &LST)) return;
+    hor2eq(&CurAZ, &CurRD, LST);
 }

 mount_status_t emulation_status(){
--- a/Daemons/10micron_stellarium/fitshdr.c
+++ b/Daemons/10micron_stellarium/fitshdr.c
@@ -16,6 +16,7 @@
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

+#include <erfa.h>
 #include <fcntl.h>
 #include <string.h>
 #include <sys/stat.h>
@@ -26,10 +27,6 @@

 static char *hdname = NULL;

-#ifndef FLT_EPSILON
-#define FLT_EPSILON 1e-6
-#endif
-
 /**
 * @brief set_header_name - check ability of witing into file and set given name
 * @param name - header filename
@@ -88,16 +85,16 @@ static int printhdr(int fd, const char *key, const char *val, const char *cmnt){
 void wrhdr(fitsheader_t *HDR){
    if(!HDR) return;
    static time_t lastcorr = 0; // last time of time/weather corrections sent to mount
-    time_t curtime = time(NULL);
-    bool haveweather = false;
+    double curtime = sl_dtime();
+    //bool haveweather = false;
    bool poweredON = (HDR->status == MNT_S_ERROR || HDR->status == MNT_S_OFF) ? false : true;
    // weather block
-    if(HDR->weather.last_update < (int)(1 + MOUNT_CHECK_T * 2)){ // weather data is good
-        if(time(NULL) - lastcorr > CORRECTIONS_TIMEDIFF){ // make correction once per hour
+    if(time(NULL) - HDR->weather.last_update < (int)(1. + MOUNT_CHECK_T * 10.)){ // weather data is good
+        if(poweredON && time(NULL) - lastcorr > CORRECTIONS_TIMEDIFF){ // make correction once per hour
            if(mount_corrdata(&HDR->weather)) lastcorr = time(NULL);
        }
-        haveweather = true;
-    }
+        //haveweather = true;
+    }else WARNX("bad weather; curtime - HDR->weather.last_update = %g", curtime - HDR->weather.last_update);
    if(!hdname){
        DBG("hdname not given!");
        return;
@@ -135,32 +132,41 @@ void wrhdr(fitsheader_t *HDR){
    if(pt > ht){ // horcrds is older -> show polar
        if(curtime - pt < COORDS_OLD_T){
            snprintf(val, 22, "%.10f", RAD2DEG(polar.ra));
-            WRHDR("TAGRA", val, "Target RA (J2000), degrees");
+            WRHDR("INPRA", val, "Input RA, degrees");
            snprintf(val, 22, "%.10f", RAD2DEG(polar.dec));
-            WRHDR("TAGDEC", val, "Target DEC (J2000), degrees");
+            WRHDR("INPDEC", val, "Input DEC, degrees");
        }
    }else{ // show horiz
        if(curtime - ht < COORDS_OLD_T){
            snprintf(val, 22, "%.10f", RAD2DEG(horiz.az));
-            WRHDR("TAGAZ", val, "Target Azimuth, degrees");
+            WRHDR("INPAZ", val, "Input Azimuth, degrees");
            snprintf(val, 22, "%.10f", RAD2DEG(horiz.zd));
-            WRHDR("TAGZD", val, "Target Zenith dist., degrees");
+            WRHDR("INPZD", val, "Input Zenith dist., degrees");
        }
    }
+    if(curtime - mount_getTagCoords(&polar) < COORDS_OLD_T){
+        snprintf(val, 22, "%.10f", RAD2DEG(polar.ra));
+        WRHDR("TAGRA", val, "Target RA, degrees");
+        snprintf(val, 22, "%.10f", RAD2DEG(polar.dec));
+        WRHDR("TAGDEC", val, "Target DEC, degrees");
+    }
    if(poweredON){
-        snprintf(val, 22, "%.10f", RAD2DEG(HDR->polar.ra)); // convert RA to degrees
+        snprintf(val, 22, "%.10f", RAD2HRS(HDR->polar.ra)); // convert RA to degrees
        WRHDR("RA", val, "Telescope right ascension, current epoch, deg");
+        snprintf(val, 22, "%.10f", RAD2HRS(eraAnp(HDR->sidtime - HDR->polar.ra))); // hour angle
+        WRHDR("HA", val, "Telescope hour angle, deg");
        snprintf(val, 22, "%.10f", RAD2DEG(HDR->polar.dec));
        WRHDR("DEC", val, "Telescope declination, current epoch, deg");
        snprintf(val, 22, "%.10f", RAD2DEG(HDR->altaz.az));
-        WRHDR("AZ", val, "Telescope azimuth, current epoch, deg");
+        WRHDR("AZ", val, "Telescope azimuth, deg");
        snprintf(val, 22, "%.10f", RAD2DEG(HDR->altaz.zd));
-        WRHDR("ZD", val, "Telescope zenith distance, current epoch, deg");
+        WRHDR("ZD", val, "Telescope zenith distance, deg");
    }
    WRHDR("TELSTAT", mount_status_str(HDR->status), "Telescope mount status");
    double mjd;
    mount_getInpMJD(&mjd);
-    snprintf(val, 22, "%.10f", 2000.+(mjd - ERFA_DJM00)/365.25); // calculate EPOCH/EQUINOX
+    if(mjd > 0.) snprintf(val, 22, "%.10f", 2000.+(mjd - ERFA_DJM00)/365.25); // calculate EPOCH/EQUINOX
+    else snprintf(val, 22, "%.10f", 2000.+(HDR->MJD.MJD - ERFA_DJM00)/365.25);
    WRHDR("INPEQUIN", val, "Equinox of input celestial coordinate system");
    if(poweredON){
        snprintf(val, 22, "%.10f", 2000.+(HDR->MJD.MJD - ERFA_DJM00)/365.25); // telescope coordinates: JNOW
@@ -175,8 +181,9 @@ void wrhdr(fitsheader_t *HDR){
    WRHDR("LONGITUD", val, "Geo longitude of site (east negative)");
    snprintf(val, 22, "%.10f", RAD2DEG(HDR->place.slat));
    WRHDR("LATITUDE", val, "Geo latitude of site (south negative)");
-    snprintf(val, 22, "%.4f", RAD2HRS(HDR->sidtime));
+    snprintf(val, 22, "%.6f", RAD2HRS(HDR->sidtime));
    WRHDR("LSTEND", val, "Local sidereal time of file creation");
+    /* Weather data is written into separate header-file by weather daemon
    if(haveweather){
        snprintf(val, 22, "%.1f", HDR->weather.humidity);
        WRHDR("HUMIDITY", val, "Relative humidity, %%");
@@ -192,9 +199,9 @@ void wrhdr(fitsheader_t *HDR){
        WRHDR("WINDSPD", val, "Wind speed (m/s)");
        snprintf(val, 22, "%.1f", HDR->weather.windmax);
        WRHDR("WINDMAX", val, "Last hour maximal wind speed (m/s)");
-        snprintf(val, 22, "%zd", HDR->weather.last_update);
+        snprintf(val, 22, "%lld", (long long)HDR->weather.last_update);
        WRHDR("WEATTIME", val, "Unix time of weather measurements");
-    }
+    }*/
    // WRHDR("", , "");
 #undef WRHDR
 returning:
--- a/Daemons/10micron_stellarium/fitshdr.h
+++ b/Daemons/10micron_stellarium/fitshdr.h
@@ -27,6 +27,10 @@
 // status checking interval and writing FITS-header, seconds
 #define MOUNT_CHECK_T       0.5

+#ifndef FLT_EPSILON
+#define FLT_EPSILON 1e-6
+#endif
+
 typedef struct{
    weather_data_t weather;
    mount_status_t status;
--- a/Daemons/10micron_stellarium/main.c
+++ b/Daemons/10micron_stellarium/main.c
@@ -28,6 +28,7 @@
 #include "fitshdr.h"
 #include "server.h"
 #include "mount.h"
+#include "stellarium.h"

 static pid_t childpid = -1; // PID of child process
 static parameters_t *G = NULL;
@@ -43,9 +44,11 @@ void signals(int sig){
    }
    if(childpid > 0){ // parent process
        LOGERR("PID %d exit with status %d", getpid(), sig);
+        isrunning = false;
    }else{
        LOGWARN("Child %d died with %d", getpid(), sig);
        server_stop();
+        stellarium_stop();
    }
    DBG("EXIT");
 }
@@ -75,11 +78,33 @@ int main(int argc, char **argv){
        WARNX("Can't set mount name to %s", G->mountname);
        return 5;
    }
+    if(G->parkA){
+        double A = 0.;
+        if(!str2coord(G->parkA, &A) || !mount_setParkAz(A)) WARNX("Can't set parking azimuth to %g", A);
+    }
+    if(G->parkZ){
+        double Z = 0.;
+        if(!str2coord(G->parkZ, &Z) || !mount_setParkZD(Z)) WARNX("Can't set parking zenith distance to %g", Z);
+    }
+    if(fabs(G->DUT1) > FLT_EPSILON || fabs(G->polarx) > FLT_EPSILON || fabs(G->polary) > FLT_EPSILON){
+        almDut_t par = {.DUT1 = G->DUT1, .px = G->polarx, .py = G->polary};
+        setDUT(&par);
+    }
+    if(G->altitude || G->longitude || G->latitude){
+        placeData_t place;
+        double val;
+        getPlaceData(&place);
+        if(G->altitude && sl_str2d(&val, G->altitude)) place.salt = val;
+        if(G->longitude && str2coord(G->longitude, &val)) place.slong = DEG2RAD(val);
+        if(G->latitude && str2coord(G->latitude, &val)) place.slat = DEG2RAD(val);
+        setPlaceData(&place);
+    }
    signal(SIGTERM, signals);
    signal(SIGINT, signals);
    signal(SIGQUIT, signals);
    signal(SIGTSTP, SIG_IGN);
-    signal(SIGHUP, signals);
+    signal(SIGHUP, SIG_IGN);
+    //signal(SIGHUP, signals); // re-read config file
    sl_check4running((char*)__progname, G->pidfile);
    if(G->logfile) OPENLOG(G->logfile, lvl, 1);
    DBG("Started");
@@ -108,6 +133,7 @@ int main(int argc, char **argv){
            break; // go out to normal functional
        }
    }
+    if(!isrunning) return 0;
 #endif
    server_sock_t sockt = {
        .cmd_isunix = G->isunix,
--- a/Daemons/10micron_stellarium/mount.c
+++ b/Daemons/10micron_stellarium/mount.c
@@ -42,9 +42,12 @@ static sl_tty_t *mount_dev = NULL;
 static pthread_mutex_t mntdev_mutex = PTHREAD_MUTEX_INITIALIZER;
 // status
 static atomic_int mountstatus = MNT_S_ERROR;
-
 // parking coordinates
-static horizCrds_t ParkCoords = {.az = 0., .zd = DEG2RAD(80.)};
+/*
+A="01:48:38" -> A=1.8105556
+H="01:13:29" -> Z=88.7752778
+*/
+static horizCrds_t ParkCoords = {.az = DEG2RAD(1.8105556), .zd = DEG2RAD(88.7752778)};
 // input and current target coordinates
 static polarCrds_t InpCoords = {0}, // input as user give (for epoch InpMJD)
    TagCoords = {0}; // target for Jnow after command "point to input"
@@ -79,6 +82,7 @@ double mount_getInpHor(horizCrds_t *c){
 * @return false if `ha` isn't in [0,24)
 */
 bool mount_setInpHA(double ha){
+    if(ha < 0) ha += 24.;
    if(ha < 0. || ha >= 24.) return false;
    InpCoords.ha = HRS2RAD(ha);
    InpCTime = sl_dtime();
@@ -228,7 +232,7 @@ static bool send_cmd_resp(const char *cmd, char *resp, size_t resplen){
    size_t pos = 0;
    double t0 = sl_dtime();
    bool gotEOM = false;
-    while(sl_dtime() - t0 < sertmout){
+    while(sl_dtime() - t0 < sertmout && !gotEOM){
        int got = sl_tty_read(mount_dev);
        if(got < 0){
            WARN("sl_tty_read()");
@@ -241,9 +245,6 @@ static bool send_cmd_resp(const char *cmd, char *resp, size_t resplen){
            if(c == '\r' || c == '\n') continue; // WTF?
            if(c == '#'){ // end of message
                gotEOM = true;
-                //if(resp && resplen) resp[pos < resplen ? pos : resplen-1] = 0;
-                //DBG("Got end of message: '%s' (waited for %gs)", resp, );
-                //return true;
                break;
            }
            if(resp && pos + 1 < resplen) resp[pos++] = c;
@@ -340,7 +341,7 @@ static bool guess_speed(){
    if(!mount_dev) return false;
    close(mount_dev->comfd);
 #define SPDBUFSZ    7
-    const int speeds[SPDBUFSZ] = {57600, 38400, 19200, 9600, 4800, 2400, 1200};
+    const int speeds[SPDBUFSZ] = {9600, 57600, 38400, 19200, 4800, 2400, 1200};
    int idx = 0;
    for(; idx < SPDBUFSZ && isrunning; ++idx){
        DBG("try speed %d", speeds[idx]);
@@ -382,8 +383,10 @@ bool mount_connect(){
    snprintf(buf, 63, CMD_SETMINALT, 10);
    if(!write_cmd(buf, true)) ret = false; // set minimum altitude to 10 degrees
    pthread_mutex_unlock(&mntdev_mutex);
-    if(ret) LOGMSG("Connected to %s@115200", mount_dev->portname);
-    else LOGERR("Can't write commands to mount");
+    if(ret){
+        LOGMSG("Connected to %s@115200", mount_dev->portname);
+        atomic_store(&mountstatus, MNT_S_STOPPED);
+    }else LOGERR("Can't write commands to mount");
    return ret;
 }

@@ -392,7 +395,9 @@ void mount_disconnect(){
        emulation_stop();
        return;
    }
-    pthread_mutex_trylock(&mntdev_mutex); // at least, try
+    double t0 = sl_dtime();
+    while(sl_dtime() - t0 < 120. && pthread_mutex_trylock(&mntdev_mutex))
+        usleep(100000);
    if(mount_dev) close(mount_dev->comfd);
    pthread_mutex_unlock(&mntdev_mutex);
 }
@@ -427,7 +432,7 @@ bool mount_point(double ra, double dec){
        }
    }
    ret = true;
-    TagCoords.ra = DEG2RAD(ra);
+    TagCoords.ra = HRS2RAD(ra);
    TagCoords.dec = DEG2RAD(dec);
    TagTime = sl_dtime();
 retn:
@@ -461,7 +466,7 @@ bool mount_pointAZ(double A, double Z){
    if(!write_cmd(cmd, true)) goto retn;
    snprintf(cmd, 127, CMD_SETZD, azstr);
    if(!write_cmd(cmd, true)) goto retn;
-    if(send_cmd_resp(CMD_GOTOAZ, cmd, 127)){ // returned not '0'
+    if(send_cmd_resp(CMD_GOTOAZ, cmd, 128)){ // returned not '0'
        if(*cmd != '0'){
            WARNX("Goto error, answer: %s", cmd);
            LOGWARN("Goto error, answer: %s", cmd);
@@ -482,7 +487,9 @@ bool mount_getcoords(double *ra, double *dec){
    if(!ra || !dec) return false;
    if(isemulated){
        get_emul_coords(ra, dec);
-        DBG("Emulated coordinates: %gh, %gdeg", RAD2HRS(*ra), RAD2DEG(*dec));
+        *ra = RAD2HRS(*ra);
+        *dec = RAD2DEG(*dec);
+        DBG("Emulated coordinates: %gh, %gdeg", *ra, *dec);
        return true;
    }
    if(!mount_dev) return false;
@@ -509,7 +516,7 @@ bool mount_getaz(double *a, double *z){
        double LST;
        get_LST(NULL, &LST);
        eq2hor(&P, &H, LST);
-        *a = H.az; *z = H.zd;
+        *a = RAD2DEG(H.az); *z = RAD2DEG(H.zd);
        return true;
    }
    if(!mount_dev) return false;
@@ -582,7 +589,9 @@ bool mount_tracking_start(){
 */
 bool mount_park(){
    if(isemulated) return pointAZ_emulation(ParkCoords.az, ParkCoords.zd);
-    // TODO: set lower limit to 0deg
+    char buf[64];
+    snprintf(buf, 63, CMD_SETMINALT, 0);
+    if(!write_cmd(buf, true)) return false;
    return mount_pointAZ(RAD2DEG(ParkCoords.az), RAD2DEG(ParkCoords.zd));
 }

@@ -672,3 +681,11 @@ bool mount_corrdata(weather_data_t *w){
    pthread_mutex_unlock(&mntdev_mutex);
    return ret;
 }
+
+/**
+ * @brief mount_shutdown - turn off mount
+ * @return false if failed
+ */
+bool mount_shutdown(){
+    return write_cmd(CMD_SHUTDOWN, true);
+}
--- a/Daemons/10micron_stellarium/mount.h
+++ b/Daemons/10micron_stellarium/mount.h
@@ -88,3 +88,5 @@ bool mount_park();
 bool mount_setParkAz(double az);
 bool mount_setParkZD(double zd);
 void mount_getPark(horizCrds_t *c);
+
+bool mount_shutdown();
--- a/Daemons/10micron_stellarium/mountdaemon_10micron.creator.user
+++ b/Daemons/10micron_stellarium/mountdaemon_10micron.creator.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 20.0.1, 2026-09-22T14:24:31. -->
+<!-- Written by QtCreator 20.0.1, 2026-09-28T09:01:11. -->
 <qtcreator>
 <data>
  <variable>EnvironmentId</variable>
--- a/Daemons/10micron_stellarium/mountdaemon_10micron.files
+++ b/Daemons/10micron_stellarium/mountdaemon_10micron.files
@@ -1,4 +1,5 @@
 10micron_commands.h
+Readme.md
 angles.c
 angles.h
 args.c
--- a/Daemons/10micron_stellarium/server.c
+++ b/Daemons/10micron_stellarium/server.c
@@ -36,26 +36,34 @@
 #define STATUS_MAX_AGE      (30.)

 // commands
-#define CMD_UNIXT       "unixt"
-#define CMD_STATUS      "status"
-#define CMD_STOP        "stop"
-#define CMD_TAGRA       "tagra"
-#define CMD_TAGDEC      "tagdec"
-#define CMD_TAGHA       "tagha"
-#define CMD_TAGAZ       "tagaz"
-#define CMD_TAGZD       "tagzd"
-#define CMD_TELRA       "telra"
-#define CMD_TELDEC      "teldec"
-#define CMD_TELAZ       "telaz"
-#define CMD_TELZD       "telzd"
+#define CMD_DUT1        "dut1"
+#define CMD_GOTOAZ      "gotoaz"
 #define CMD_GOTORD      "gotord"
 #define CMD_GOTORH      "gotorh"
-#define CMD_GOTOAZ      "gotoaz"
-#define CMD_STOPTRK     "stoptrk"
-#define CMD_TRACK       "track"
-#define CMD_PARK        "park"
+#define CMD_LST         "lst"
 #define CMD_PARKAZ      "parkaz"
+#define CMD_PARK        "park"
 #define CMD_PARKZD      "parkzd"
+#define CMD_PLACE       "place"
+#define CMD_POLARX      "polarx"
+#define CMD_POLARY      "polary"
+#define CMD_SHUTDOWN    "shutdown"
+#define CMD_STATUS      "status"
+#define CMD_STOP        "stop"
+#define CMD_STOPTRK     "stoptrk"
+#define CMD_TAGAZ       "tagaz"
+#define CMD_TAGDEC      "tagdec"
+#define CMD_TAGHA       "tagha"
+#define CMD_TAGMJD      "tagmjd"
+#define CMD_TAGRA       "tagra"
+#define CMD_TAGZD       "tagzd"
+#define CMD_TELAZ       "telaz"
+#define CMD_TELDEC      "teldec"
+#define CMD_TELHA       "telha"
+#define CMD_TELRA       "telra"
+#define CMD_TELZD       "telzd"
+#define CMD_TRACK       "track"
+#define CMD_UNIXT       "unixt"


 // main command socket
@@ -65,7 +73,7 @@ static int stellarium_sockfd = -1;
 // sleep time (us)
 static unsigned int sleept = DEFAULT_SLEEP_T;
 // running flag
-volatile bool isrunning = false;
+volatile bool isrunning = true;
 // lost weather flag
 static bool weatherlost = false;

@@ -102,9 +110,7 @@ static int parse_key_value(const char *req, double *val){
    if(!req) return 0; // is getter
    DBG("parsing of %s", req);
    double d;
-    if(strchr(req, ':')){ // DD:MM:SS or HH:MM:SS
-        if(!str2coord(req, &d)) return -1;
-    }else if(sscanf(req, "%lf", &d) != 1) return -1; // error
+    if(!str2coord(req, &d)) return -1;
    if(val) *val = d;
    return 1; // is setter
 }
@@ -115,6 +121,7 @@ static sl_sock_hresult_e cmd_tagra(sl_sock_t *c, sl_sock_hitem_t *item, const ch
    int res = parse_key_value(req, &val);
    if(res < 0) return RESULT_BADVAL;
    if(res > 0){ // setter
+        LOGDBG("Client %d set tagra: %g", c->fd, val);
        if(mount_setInpRA(val))  return RESULT_OK;
        return RESULT_BADVAL;
    }else{ // getter
@@ -133,6 +140,7 @@ static sl_sock_hresult_e cmd_tagdec(sl_sock_t *c, sl_sock_hitem_t *item, const c
    int res = parse_key_value(req, &val);
    if(res < 0) return RESULT_BADVAL;
    if(res > 0){
+        LOGDBG("Client %d set tagdec: %g", c->fd, val);
        if(mount_setInpDec(val)) return RESULT_OK;
        return RESULT_BADVAL;
    }else{
@@ -151,6 +159,7 @@ static sl_sock_hresult_e cmd_tagha(sl_sock_t *c, sl_sock_hitem_t *item, const ch
    int res = parse_key_value(req, &val);
    if(res < 0) return RESULT_BADVAL;
    if(res > 0){
+        LOGDBG("Client %d set tagha: %g", c->fd, val);
        if(mount_setInpHA(val)) return RESULT_OK;
        return RESULT_BADVAL;
    }else{
@@ -169,6 +178,7 @@ static sl_sock_hresult_e cmd_tagaz(sl_sock_t *c, sl_sock_hitem_t *item, const ch
    int res = parse_key_value(req, &val);
    if(res < 0) return RESULT_BADVAL;
    if(res > 0){
+        LOGDBG("Client %d set tagaz: %g", c->fd, val);
        if(mount_setInpA(val)) return RESULT_OK;
        return RESULT_BADVAL;
    }else{
@@ -187,6 +197,7 @@ static sl_sock_hresult_e cmd_tagzd(sl_sock_t *c, sl_sock_hitem_t *item, const ch
    int res = parse_key_value(req, &val);
    if(res < 0) return RESULT_BADVAL;
    if(res > 0){
+        LOGDBG("Client %d set tagzd: %g", c->fd, val);
        if(mount_setInpZ(val)) return RESULT_OK;
        return RESULT_BADVAL;
    }else{
@@ -200,6 +211,13 @@ static sl_sock_hresult_e cmd_tagzd(sl_sock_t *c, sl_sock_hitem_t *item, const ch
    return RESULT_SILENCE;
 }

+static sl_sock_hresult_e cmd_lst(sl_sock_t *c, sl_sock_hitem_t *item, _U_ const char *req){
+    char buf[64];
+    snprintf(buf, 63, "%s=%.6f\n", item->key, RAD2HRS(HDR.sidtime));
+    sl_sock_sendstrmessage(c, buf);
+    return RESULT_SILENCE;
+}
+
 static sl_sock_hresult_e cmd_telra(sl_sock_t *c, sl_sock_hitem_t *item, _U_ const char *req){
    if(weatherlost || HDR.status == MNT_S_ERROR) return RESULT_FAIL;
    char buf[64];
@@ -208,6 +226,15 @@ static sl_sock_hresult_e cmd_telra(sl_sock_t *c, sl_sock_hitem_t *item, _U_ cons
    return RESULT_SILENCE;
 }

+static sl_sock_hresult_e cmd_telha(sl_sock_t *c, sl_sock_hitem_t *item, _U_ const char *req){
+    if(weatherlost || HDR.status == MNT_S_ERROR) return RESULT_FAIL;
+    char buf[64];
+    double ha = eraAnp(HDR.sidtime - HDR.polar.ra);
+    snprintf(buf, 63, "%s=%.6f\n", item->key, RAD2HRS(ha));
+    sl_sock_sendstrmessage(c, buf);
+    return RESULT_SILENCE;
+}
+
 static sl_sock_hresult_e cmd_teldec(sl_sock_t *c, sl_sock_hitem_t *item, _U_ const char *req){
    if(weatherlost || HDR.status == MNT_S_ERROR) return RESULT_FAIL;
    char buf[64];
@@ -234,10 +261,16 @@ static sl_sock_hresult_e cmd_telzd(sl_sock_t *c, sl_sock_hitem_t *item, _U_ cons

 static sl_sock_hresult_e cmd_gotord(_U_ sl_sock_t *c, _U_ sl_sock_hitem_t *item, _U_ const char *req){
    if(weatherlost || HDR.status == MNT_S_ERROR) return RESULT_FAIL;
-    polarCrds_t p;
-    mount_getInpCoords(&p);
-    double ra_h = RAD2HRS(p.ra);
-    double dec_d = RAD2DEG(p.dec);
+    polarCrds_t px, pnow;
+    mount_getInpCoords(&px);
+    double Epoch;
+    mount_getInpMJD(&Epoch);
+    if(Epoch > 0.){
+        if(!JXtoJnow(&px, &pnow, Epoch)) return RESULT_FAIL;
+    }else pnow = px;
+    double ra_h = RAD2HRS(pnow.ra);
+    double dec_d = RAD2DEG(pnow.dec);
+    LOGDBG("Client %d asks to point ra=%ghrs, dec=%gdeg", c->fd, ra_h, dec_d);
    if(!mount_point(ra_h, dec_d)) return RESULT_FAIL;
    return RESULT_OK;
 }
@@ -253,6 +286,7 @@ static sl_sock_hresult_e cmd_gotorh(_U_ sl_sock_t *c, _U_ sl_sock_hitem_t *item,
    double RA_rad = eraAnp(LST - p.ha);
    double ra_h = RAD2HRS(RA_rad);
    double dec_d = RAD2DEG(p.dec);
+    LOGDBG("Client %d asks to point to HA/Dec", c->fd);
    if(!mount_point(ra_h, dec_d)) return RESULT_FAIL;
    return RESULT_OK;
 }
@@ -261,16 +295,19 @@ static sl_sock_hresult_e cmd_gotoaz(_U_ sl_sock_t *c, _U_ sl_sock_hitem_t *item,
    if(weatherlost || HDR.status == MNT_S_ERROR) return RESULT_FAIL;
    horizCrds_t h;
    mount_getInpHor(&h);
+    LOGDBG("Client %d asks to point to A/Z", c->fd);
    if(mount_pointAZ(RAD2DEG(h.az), RAD2DEG(h.zd))) return RESULT_OK;
    return RESULT_FAIL;
 }

 static sl_sock_hresult_e cmd_stop(_U_ sl_sock_t *c, _U_ sl_sock_hitem_t *item, _U_ const char *req){
+    LOGDBG("Client %d asks to stop", c->fd);
    if(mount_stop()) return RESULT_OK;
    return RESULT_FAIL;
 }

 static sl_sock_hresult_e cmd_stoptrk(_U_ sl_sock_t *c, _U_ sl_sock_hitem_t *item, _U_ const char *req){
+    LOGDBG("Client %d asks to stop tracking", c->fd);
    if(mount_tracking_stop()) return RESULT_OK;
    return RESULT_FAIL;
 }
@@ -278,11 +315,13 @@ static sl_sock_hresult_e cmd_stoptrk(_U_ sl_sock_t *c, _U_ sl_sock_hitem_t *item
 // run tracking from current position
 static sl_sock_hresult_e cmd_track(_U_ sl_sock_t *c, _U_ sl_sock_hitem_t *item, _U_ const char *req){
    if(weatherlost || HDR.status == MNT_S_ERROR) return RESULT_FAIL;
+    LOGDBG("Client %d asks to start tracking", c->fd);
    if(mount_tracking_start()) return RESULT_OK;
    return RESULT_FAIL;
 }

 static sl_sock_hresult_e cmd_park(_U_ sl_sock_t *c, _U_ sl_sock_hitem_t *item, _U_ const char *req){
+    LOGDBG("Client %d asks to park", c->fd);
    if(mount_park()) return RESULT_OK;
    return RESULT_FAIL;
 }
@@ -293,6 +332,7 @@ static sl_sock_hresult_e cmd_parkaz(sl_sock_t *c, sl_sock_hitem_t *item, const c
    int res = parse_key_value(req, &val);
    if(res < 0) return RESULT_BADVAL;
    if(res > 0){
+        LOGDBG("Client %d set parking Az to %g", c->fd, val);
        if(mount_setParkAz(val)) return RESULT_OK;
        return RESULT_BADVAL;
    }else{
@@ -309,6 +349,7 @@ static sl_sock_hresult_e cmd_parkzd(sl_sock_t *c, sl_sock_hitem_t *item, const c
    int res = parse_key_value(req, &val);
    if(res < 0) return RESULT_BADVAL;
    if(res > 0){
+        LOGDBG("Client %d set parking ZD to %g", c->fd, val);
        if(mount_setParkZD(val)) return RESULT_OK;
        return RESULT_BADVAL;
    }else{
@@ -321,28 +362,150 @@ static sl_sock_hresult_e cmd_parkzd(sl_sock_t *c, sl_sock_hitem_t *item, const c
    return RESULT_SILENCE;
 }

+static sl_sock_hresult_e cmd_tagmjd(sl_sock_t *c, sl_sock_hitem_t *item, const char *req){
+    double val;
+    bool isyear = false;
+    if(req && *req == 'J'){ // e.g. J2050.
+        ++req;
+        isyear = true;
+    }
+    int res = parse_key_value(req, &val);
+    if(res < 0) return RESULT_BADVAL;
+    if(res > 0){
+        if(isyear) val = (val - 2000.)*365.25 + ERFA_DJM00;
+        LOGDBG("Client %d set target epoch %g", c->fd, val);
+        if(mount_setInpMJD(val)) return RESULT_OK;
+        return RESULT_BADVAL;
+    }
+    mount_getInpMJD(&val);
+    char buf[64];
+    snprintf(buf, 63, "%s=%.1f\n", item->key, val);
+    sl_sock_sendstrmessage(c, buf);
+    return RESULT_SILENCE;
+}
+
+static sl_sock_hresult_e cmd_dut1(sl_sock_t *c, sl_sock_hitem_t *item, const char *req){
+    double val;
+    int res = parse_key_value(req, &val);
+    if(res < 0) return RESULT_BADVAL;
+    almDut_t curval;
+    getDUT(&curval);
+    if(res > 0){
+        LOGDBG("Client %d set dut1 %g", c->fd, val);
+        curval.DUT1 = val;
+        if(setDUT(&curval)) return RESULT_OK;
+        return RESULT_BADVAL;
+    }
+    char buf[64];
+    snprintf(buf, 63, "%s=%.3f\n", item->key, curval.DUT1);
+    sl_sock_sendstrmessage(c, buf);
+    return RESULT_SILENCE;
+}
+
+static sl_sock_hresult_e cmd_polarx(sl_sock_t *c, sl_sock_hitem_t *item, const char *req){
+    double val;
+    int res = parse_key_value(req, &val);
+    if(res < 0) return RESULT_BADVAL;
+    almDut_t curval;
+    getDUT(&curval);
+    if(res > 0){
+        LOGDBG("Client %d set polarx %g", c->fd, val);
+        curval.px = val;
+        if(setDUT(&curval)) return RESULT_OK;
+        return RESULT_BADVAL;
+    }
+    char buf[64];
+    snprintf(buf, 63, "%s=%.3f\n", item->key, curval.px);
+    sl_sock_sendstrmessage(c, buf);
+    return RESULT_SILENCE;
+}
+
+static sl_sock_hresult_e cmd_polary(sl_sock_t *c, sl_sock_hitem_t *item, const char *req){
+    double val;
+    int res = parse_key_value(req, &val);
+    if(res < 0) return RESULT_BADVAL;
+    almDut_t curval;
+    getDUT(&curval);
+    if(res > 0){
+        LOGDBG("Client %d set polary %g", c->fd, val);
+        curval.py = val;
+        if(setDUT(&curval)) return RESULT_OK;
+        return RESULT_BADVAL;
+    }
+    char buf[64];
+    snprintf(buf, 63, "%s=%.3f\n", item->key, curval.py);
+    sl_sock_sendstrmessage(c, buf);
+    return RESULT_SILENCE;
+}
+
+static sl_sock_hresult_e cmd_place(sl_sock_t *c, sl_sock_hitem_t _U_ *item, const char _U_ *req){
+    char buf[128];
+    placeData_t place;
+    getPlaceData(&place);
+    snprintf(buf, 127, "latitude=%.7f\nlongitude=%.7f\naltitude=%.7f\n",
+        RAD2DEG(place.slat), RAD2DEG(place.slong), place.salt);
+    sl_sock_sendstrmessage(c, buf);
+    return RESULT_SILENCE;
+}
+
+static sl_sock_hresult_e cmd_shutdown(sl_sock_t *c, sl_sock_hitem_t *item, const char *req){
+    double val;
+    static int shtdwnkey = -1;
+    static time_t keytime = 0;
+    int res = parse_key_value(req, &val);
+    if(res < 0) return RESULT_BADVAL;
+    time_t tnow = time(NULL);
+    if(tnow - keytime > SHTDWN_KEY_TMOUT) keytime = 0;
+    if(res == 0){ // generate new shutdown key or show old - depending on keytime
+        if(!keytime){
+            keytime = tnow;
+            srand(tnow);
+            shtdwnkey = rand();
+            LOGDBG("Generated new shutdown key: %d", shtdwnkey);
+        }
+        char buf[64];
+        snprintf(buf, 63, "%s=%d\n", item->key, shtdwnkey);
+        sl_sock_sendstrmessage(c, buf);
+        return RESULT_SILENCE;
+    }
+    if((int)val != shtdwnkey){
+        LOGWARN("User tryes to run shutdown with wrong key");
+        return RESULT_BADVAL;
+    }
+    LOGWARN("User give command \"shutdown\"");
+    if(!mount_shutdown()) return RESULT_FAIL;
+    return RESULT_OK;
+}


 //  and all handlers collection
 static sl_sock_hitem_t handlers[] = {
+    {cmd_dut1, CMD_DUT1, "set DUT1 (s)", NULL},
    {cmd_gotoaz, CMD_GOTOAZ, "point telescope by input Az/ZD and stop", NULL},
    {cmd_gotord, CMD_GOTORD, "point telescope by input RA/Dec and start tracking", NULL},
    {cmd_gotorh, CMD_GOTORH, "point telescope by input RA/HA and start tracking", NULL},
+    {cmd_lst, CMD_LST, "get current local sidereal time", NULL},
    {cmd_park, CMD_PARK, "park telescope", NULL},
    {cmd_parkaz, CMD_PARKAZ, "set parking azimuth (Deg: 0 - north, 90 - east)", NULL},
    {cmd_parkzd, CMD_PARKZD, "set parking zenith distance (Deg)", NULL},
+    {cmd_place, CMD_PLACE, "get place data", NULL},
+    {cmd_polarx, CMD_POLARX, "set polar X value (m)", NULL},
+    {cmd_polary, CMD_POLARY, "set polar Y value (m)", NULL},
+    {cmd_shutdown, CMD_SHUTDOWN, "shut down mount power", NULL},
    {status, CMD_STATUS, "get mount status", NULL},
    {cmd_stop, CMD_STOP, "stop telescope", NULL},
+    {cmd_stoptrk, CMD_STOPTRK, "stop tracking", NULL},
    {cmd_tagaz, CMD_TAGAZ, "get/set target azimuth (Deg)", NULL},
    {cmd_tagdec, CMD_TAGDEC, "get/set target declination (Deg)", NULL},
    {cmd_tagha, CMD_TAGHA, "get/set target hour angle (Hrs)", NULL},
+    {cmd_tagmjd, CMD_TAGMJD, "get/set target MJD epoch (-1 for Jnow) or Jxxx for year, like J2050.", NULL},
    {cmd_tagra, CMD_TAGRA, "get/set target right acsention (Hrs)", NULL},
    {cmd_tagzd, CMD_TAGZD, "get/set target zenith distance (Deg)", NULL},
    {cmd_teldec, CMD_TELDEC, "get current telescope declination (Deg)", NULL},
+    {cmd_telha, CMD_TELHA, "get current telescope hour angle (Hrs)", NULL},
    {cmd_telra, CMD_TELRA, "get current telescope right acsention (Hrs)", NULL},
    {cmd_telaz, CMD_TELAZ, "get current telescope azimuth (Deg)", NULL},
    {cmd_telzd, CMD_TELZD, "get current telescope zenith distance (Deg)", NULL},
-    {cmd_stoptrk, CMD_STOPTRK, "stop tracking", NULL},
    {cmd_track, CMD_TRACK, "start tracking from current position", NULL},
    {dtimeh, CMD_UNIXT, "get server's UNIX time", NULL},
    {NULL, NULL, NULL, NULL}
@@ -415,10 +578,6 @@ bool server_check(server_sock_t *sockt){
 }

 void server_run(){
-    if(isrunning){
-        LOGERR("server_run(): still running!");
-        return;
-    }
    if(stellarium_sockfd == -1 || !cmd_socket){
        LOGERR("server_run(): not initialized");
        if(cmd_socket) sl_sock_delete(&cmd_socket);
@@ -455,26 +614,29 @@ void server_run(){
            }
            // collect data for other fields
            HDR.status = mount_status();
-            get_MJDt(NULL, &HDR.MJD);
-            get_LST(&HDR.MJD, &HDR.sidtime);
            if(HDR.status != MNT_S_OFF){
                double deg1, deg2;
                if(mount_getcoords(&deg1, &deg2)){
-                    HDR.polar.ra = DEG2RAD(deg1);
+                    get_MJDt(NULL, &HDR.MJD);
+                    get_LST(&HDR.MJD, &HDR.sidtime);
+                    HDR.polar.ra = HRS2RAD(deg1);
                    HDR.polar.dec = DEG2RAD(deg2);
                }
                if(mount_getaz(&deg1, &deg2)){
                    HDR.altaz.az = DEG2RAD(deg1);
                    HDR.altaz.zd = DEG2RAD(deg2);
                }
+                if(tnow - lastweathertime > MOUNT_WEATHER_ALRM){
+                    weatherlost = true;
+                    if(HDR.status == MNT_S_TRACKING || HDR.status == MNT_S_SLEWING){
+                        LOGERR("Lost meteo connection -> park");
+                        if(mount_park()) lastweathertime = tnow;
+                    }
+                } else weatherlost = false;
+            }else{
+                get_MJDt(NULL, &HDR.MJD);
+                get_LST(&HDR.MJD, &HDR.sidtime);
            }
-            if(tnow - lastweathertime > MOUNT_WEATHER_ALRM){
-                weatherlost = true;
-                if(HDR.status == MNT_S_TRACKING || HDR.status == MNT_S_SLEWING){
-                    LOGERR("Lost meteo connection -> park");
-                    if(mount_park()) lastweathertime = tnow;
-                }
-            } else weatherlost = false;
            getDUT(&HDR.dut);
            if(HDR.status == MNT_S_OFF || !mount_getpierside(HDR.pierside, MAX_HDR_STRLEN)) *HDR.pierside = 0;
            // and write FITS-header
--- a/Daemons/10micron_stellarium/server.h
+++ b/Daemons/10micron_stellarium/server.h
@@ -32,6 +32,9 @@
 // max weather lost time
 #define MOUNT_WEATHER_ALRM  900.

+// shutdown key refresh period (5min)
+#define SHTDWN_KEY_TMOUT    300
+
 typedef struct{
    int cmd_isunix;         // UNIX-socket instead of INET for `cmdnode`
    const char *stellport;  // port of stellarium server; could be "localhost:port" for local-only work
--- a/Daemons/10micron_stellarium/stellarium.c
+++ b/Daemons/10micron_stellarium/stellarium.c
@@ -32,7 +32,7 @@
 #define BUFLEN  256

 // running flag
-static volatile bool isrunning = false;
+extern volatile bool isrunning;
 static pthread_t mainthread;

 //read: 0x14 0x0 0x0 0x0 0x5b 0x5a 0x2e 0xc6 0x8c 0x23 0x5 0x0 0x23 0x9 0xe5 0xaf 0x23 0x2e 0x34 0xed
@@ -138,7 +138,7 @@ static bool proc_data(uint8_t *data, ssize_t len){
 * @param sockfd - socket fd for sending data
 * @return false if client disconnected
 */
-float send_data(uint8_t *data, size_t dlen, int sockfd){
+static bool send_data(uint8_t *data, size_t dlen, int sockfd){
    ssize_t sent = send(sockfd, data, dlen, MSG_NOSIGNAL);
    if(sent != (ssize_t)dlen){
        if(sent == -1 && errno != EINTR){
@@ -168,10 +168,19 @@ static void *handle_socket(void *sockd){
            sleep(1);
            continue;
        }
-        double RA = HRS2RAD(Rhrs), Decl = DEG2RAD(Ddeg);
+        /*
+        // convert from Jnow to J2000
+        polarCrds_t Jn = {0}, J2000 = {0};
+        Jn.ra = HRS2RAD(Rhrs);
+        Jn.dec = DEG2RAD(Ddeg);
+        if(!JnowtoJ2000(&Jn, &J2000)) break;
        //DBG("got : %g/%g", RA, Decl);
-        dout.ra = htole32(RAD2RA(RA));
-        dout.dec = (int32_t)htole32(RAD2DEC(Decl));
+        dout.ra = htole32(RAD2RA(J2000.ra));
+        dout.dec = (int32_t)htole32(RAD2DEC(J2000.dec));
+        */
+        dout.ra = htole32(RAD2RA(HRS2RAD(Rhrs)));
+        dout.dec = (int32_t)htole32(RAD2DEC(DEG2RAD(Ddeg)));
+        /**/
        if(!send_data((uint8_t*)&dout, sizeof(outdata), sock)) break;
        if(!sl_canread(sock)){
            sleep(1);
@@ -199,10 +208,6 @@ static void *handle_socket(void *sockd){

 // Main loop thread: wait connections over socket and create one thread for each
 static void* start(void *F){
-    if(isrunning){
-        WARNX("already running");
-        return NULL;
-    }
    if(!F){
        WARNX("start(): No arg");
        return NULL;
@@ -213,7 +218,6 @@ static void* start(void *F){
        return NULL;
    }
    DBG("Start main loop, sockfd=%d", sockfd);
-    isrunning = true;
    // Main loop
    while(isrunning){
        socklen_t size = sizeof(struct sockaddr_in);
@@ -271,11 +275,13 @@ bool stellarium_start(int sockfd){
        return false;
    }
    DBG("Stellarium server started");
+    LOGDBG("Stellarium server started");
    return true;
 }

 void stellarium_stop(){
-    if(!isrunning) return;
-    isrunning = false;
+    if(isrunning) isrunning = false;
+    /*DBG("Wait for stellarium thread");
    pthread_join(mainthread, NULL);
+    LOGDBG("Stellarium thread died");*/
 }