diff --git a/asibfm700/asibfm700_mount.cpp b/asibfm700/asibfm700_mount.cpp
index 987a4b3..a419ec1 100644
--- a/asibfm700/asibfm700_mount.cpp
+++ b/asibfm700/asibfm700_mount.cpp
@@ -158,12 +158,14 @@ Asibfm700Mount::error_t Asibfm700Mount::initMount()
 
     logInfo("ERFA engine initialization ...");
 
+
     // set ERFA state
-    Asibfm700CCTE::engine_state_t ccte_state{.meteo{},
-                                             .wavelength = _mountConfig.refractWavelength(),
-                                             .lat = _mountConfig.siteLatitude(),
-                                             .lon = _mountConfig.siteLongitude(),
-                                             .elev = _mountConfig.siteElevation()};
+    Asibfm700CCTE::engine_state_t ccte_state{
+        .meteo = Asibfm700CCTE::_currentState.meteo,  // just use of previous values
+        .wavelength = _mountConfig.refractWavelength(),
+        .lat = _mountConfig.siteLatitude(),
+        .lon = _mountConfig.siteLongitude(),
+        .elev = _mountConfig.siteElevation()};
 
 
     if (_mountConfig.leapSecondFilename().size()) {  // load leap seconds file
diff --git a/mcc/mcc_defaults.h b/mcc/mcc_defaults.h
index bef2473..89c86e6 100644
--- a/mcc/mcc_defaults.h
+++ b/mcc/mcc_defaults.h
@@ -35,7 +35,10 @@ struct MccJulianDay {
 
     MccJulianDay(double jd) : mjd(jd - MJD0) {}
 
-    constexpr operator double() const { return MccJulianDay::MJD0 + mjd; }
+    constexpr operator double() const
+    {
+        return MccJulianDay::MJD0 + mjd;
+    }
 
     MccJulianDay& operator=(double jd)
     {
@@ -44,11 +47,17 @@ struct MccJulianDay {
         return *this;
     }
 
-    double MJD() const { return mjd; }
+    double MJD() const
+    {
+        return mjd;
+    }
 
     constexpr auto operator<=>(const MccJulianDay&) const = default;
 
-    constexpr auto operator<=>(double v) const { return v <=> (MccJulianDay::MJD0 + mjd); };
+    constexpr auto operator<=>(double v) const
+    {
+        return v <=> (MccJulianDay::MJD0 + mjd);
+    };
 
 protected:
     double mjd{51544.5};  // J2000.0
@@ -220,7 +229,10 @@ public:
         return _MJD;
     }
 
-    double MJD() const { return _MJD; }
+    double MJD() const
+    {
+        return _MJD;
+    }
 
     template <typename DT>
     std::chrono::sys_time<DT> UTC() const
@@ -228,7 +240,10 @@ public:
         return std::chrono::time_point_cast<DT>(_UTC);
     }
 
-    std::chrono::system_clock::time_point UTC() const { return _UTC; }
+    std::chrono::system_clock::time_point UTC() const
+    {
+        return _UTC;
+    }
 
 
     template <traits::mcc_output_char_range R>
@@ -253,11 +268,20 @@ public:
         return r;
     }
 
-    std::string JEpoch(uint8_t prec = 0) const { return JEpoch<std::string>(prec); }
+    std::string JEpoch(uint8_t prec = 0) const
+    {
+        return JEpoch<std::string>(prec);
+    }
 
-    auto operator<=>(const MccCelestialCoordEpoch& rhs) const { return _UTC <=> rhs._UTC; }
+    auto operator<=>(const MccCelestialCoordEpoch& rhs) const
+    {
+        return _UTC <=> rhs._UTC;
+    }
 
-    auto operator==(const MccCelestialCoordEpoch& rhs) const { return _UTC == rhs._UTC; }
+    auto operator==(const MccCelestialCoordEpoch& rhs) const
+    {
+        return _UTC == rhs._UTC;
+    }
 
 protected:
     std::chrono::system_clock::time_point _UTC;
@@ -611,9 +635,15 @@ public:
 
     virtual ~MccCoordinateSerializer() = default;
 
-    void setFormat(SerializedCoordFormat fmt) { _currentFormat = fmt; }
+    void setFormat(SerializedCoordFormat fmt)
+    {
+        _currentFormat = fmt;
+    }
 
-    void setPrecision(SexagesimalCoordPrec prec) { _currentPrec = std::move(prec); }
+    void setPrecision(SexagesimalCoordPrec prec)
+    {
+        _currentPrec = std::move(prec);
+    }
 
     template <traits::mcc_input_char_range R>
     void setDelimiter(R&& delim)
@@ -675,7 +705,7 @@ protected:
         std::format_to(std::back_inserter(bytes), "{}", MccAngle(angle).sexagesimal(false, _currentPrec.deg_prec));
         if constexpr (sizeof...(Ts)) {
             std::format_to(std::back_inserter(bytes), "{}", _delimiter);
-            toSexagesimalHour(bytes, angles...);
+            toSexagesimalDeg(bytes, angles...);
         }
     }
 };
@@ -1004,7 +1034,7 @@ public:
         static MccEqtHrzCoordsSerializer eqhrz_ser;
         static MccPointingTargetSerializer pt_ser;
 
-        // output format: <mount data>, speedX, speedY, pcmX, pcmY, refCorr, <target data>
+        // output format: <mount data>, speedX, speedY, pcmX, pcmY, refCorr (in arcsecs), <target data>
 
         eqhrz_ser.setFormat(_currentFormat);
         eqhrz_ser.setPrecision(_currentPrec);
@@ -1013,7 +1043,8 @@ public:
         // MccEqtHrzCoordsSerializer{}(value, bytes);
         std::format_to(std::back_inserter(bytes), "{}", _delimiter);
 
-        toDegrees(bytes, value.speedX, value.speedY, value.pcmX, value.pcmY, value.refCorr);
+        // '*3600.0' to express refraction correction in arcseconds!
+        toDegrees(bytes, value.speedX, value.speedY, value.pcmX, value.pcmY, value.refCorr * 3600.0);
         std::format_to(std::back_inserter(bytes), "{}", _delimiter);
 
         pt_ser.setFormat(_currentFormat);
diff --git a/mcc/mcc_generic_mount.h b/mcc/mcc_generic_mount.h
index b5fbd52..a9cc172 100644
--- a/mcc/mcc_generic_mount.h
+++ b/mcc/mcc_generic_mount.h
@@ -156,6 +156,18 @@ public:
 
     enum class mount_status_t : int { IDLE, INITIALIZATION, STOPPED, SLEWING, ADJUSTING, TRACKING, ERROR };
 
+    static constexpr std::string_view mountStatusStr(mount_status_t status)
+    {
+        return status == mount_status_t::IDLE   ? "IDLE"
+               : mount_status_t::INITIALIZATION ? "INIT"
+               : mount_status_t::STOPPED        ? "STOP"
+               : mount_status_t::SLEWING        ? "SLEW"
+               : mount_status_t::ADJUSTING      ? "ADJST"
+               : mount_status_t::TRACKING       ? "TRACK"
+               : mount_status_t::ERROR          ? "ERR"
+                                                : "UNKNOWN";
+    }
+
     template <typename... HardwareCtorArgTs,
               typename... TelemetryCtorArgTs,
               typename... PZoneContCtorArgTs,
diff --git a/mcc/mcc_telemetry.h b/mcc/mcc_telemetry.h
index 4f53331..0dd02f9 100644
--- a/mcc/mcc_telemetry.h
+++ b/mcc/mcc_telemetry.h
@@ -395,6 +395,7 @@ public:
                     return MccTelemetryErrorCode::ERROR_UPDATE_STOPPED;
                 }
 
+                // to compute refraction coefficients
                 _data.pair_kind = MccCoordPairKind::COORDS_KIND_AZZD;
                 _data.X = _data.AZ;
                 _data.Y = _data.ZD;
@@ -416,10 +417,7 @@ public:
                 }
             }
 
-            if (ccte_err) {
-                return mcc_deduce_error_code(ccte_err, MccTelemetryErrorCode::ERROR_COORD_TRANSFORM);
-            }
-
+            // restore according to the mount type
             if constexpr (mccIsEquatorialMount(pcm_t::mountType)) {
                 _data.pair_kind = MccCoordPairKind::COORDS_KIND_HADEC_APP;
             } else if constexpr (mccIsAltAzMount(pcm_t::mountType)) {
@@ -429,6 +427,10 @@ public:
             }
 
 
+            if (ccte_err) {
+                return mcc_deduce_error_code(ccte_err, MccTelemetryErrorCode::ERROR_COORD_TRANSFORM);
+            }
+
             return MccTelemetryErrorCode::ERROR_OK;
         };