==================================== t2181 ===================================== Ag : Antenna stuck (04:38-11:17). Sy : No log No problems found for : Hh, Ht, Kv, On, Wz No information for : 26, 56 ================================ t2181ag READY ================================= 2026-04-14 13:20 t2181, AGGO, Ready-message Session t2181 ready message for AGGO (DBBC2) --------------------------------------------- First source: 0723-008 at 17:34:34 UT GPS-FMOUT: 0.8865 microseconds Wx: Temperature (C): 20.7 Pressure (mBar): 1012.216 Humidity (%): 94.9 Sky Conditions: mostly clear, no rain Wind velocity (m/s): 2.1 Cable difference is: longer cable makes the reading smaller by 136.82 microseconds and is nominal Pointing values: SEFD X/S Source Az/El Offset Az/Offset El 0/0 m17 269.4147/28.2965 0.04368/0.02387 Tsys (X1/S/X2): 129.8/165.8/114.4 AGGO VLBI Team: Argentinean - German Geodetic Observatory Coord: -34.873611,-58.139778 Camino Gral. Belgrano Km 40 Parque Pereyra Iraola - Berazategui Buenos Aires - Argentina Tel: +54 221 6443203 ================================= t2181ag STOP ================================= 2026-04-15 17:39 t2181, AGGO, Stop-message Session t2181 stop message from AGGO. ------------------------------------- Scans lost | Reason ------------------------------------+-------------- From 2026_105-0419 to 2026_105-0836 | Antenna Stop ------------------------------------+-------------- From 2026_105-1655 to 2026_105-1709 | Antenna Stop ------------------------------------+-------------- Last Scan: 105-1630 finished at 16:50:00 UT AGGO VLBI Team: Argentinean - German Geodetic Observatory Coord: -34.873611,-58.139778 Camino Gral. Belgrano Km 40 Parque Pereyra Iraola - Berazategui Buenos Aires - Argentina Tel: +54 221 6443203 ================================ t2181hh READY ================================= 2026-04-14 13:23 t2181, HartRAO, Ready-message Session t2181 ready message for HartRAO. ---------------------------------------- Comments: HartRAO is ready to start IVS-T2 181 All systems nominal First source: 1055+018 at 17:30:00 UT FMOUT-GPS: 8.7687 microseconds Wx: Temperature (C): 19.8 Pressure (mBar): 864.6 Humidity (%): 79.0 Sky Conditions: Overcast Cable difference is: longer cable makes the reading smaller by 535.2 microseconds and is nominal Pointing values: na Tsys (x1/s/x2): 68.0/73.5/58.5 ================================ t2181hh START ================================= 2026-04-14 17:30 t2181, HartRAO, Autostart-message Session t2181 auto-start message for HartRAO. --------------------------------------------- Started recording with source: 1055+018 at 104.17:30:00 UT ================================= t2181hh STOP ================================= 2026-04-15 17:30 t2181, HartRAO, Stop-message Session t2181 stop message for HartRAO. --------------------------------------- Comments: HartRAO has concluded t2181 No problems reported Weather: Clear at the beginning with partly coudy and overcast conditions and light rain towards the end Data being e-shipped to BONN Observation finished at: 17:30:00 UT ================================ t2181ht READY ================================= 2026-04-14 17:22 t2181, Hart15M, Ready-message Session t2181 ready message for Hart15M. ---------------------------------------- Comments: Hart15M is ready to start T2181 All systems nominal First source: 1055+018 at 17:30:00 UT FMOUT-GPS: 8.7380 microseconds Wx: Temperature (C): 14.5 Pressure (mBar): 865.0 Humidity (%): 83.5 Sky Conditions: Clear Cable difference is: na Pointing values: na Tsys (x1/s/x2): 29.7/31.9/30.3 ================================ t2181ht READY ================================= 2026-04-15 17:51 t2181, Hart15M, Ready-message Session t2181 ready message for Hart15M. ---------------------------------------- Comments: Hart15M is ready to start IVS-CRF-DB-142 All systems nominal First source: 0454-810 at 18:00:00 UT FMOUT-GPS: 8.7400 microseconds Wx: Temperature (C): 13.2 Pressure (mBar): 865.0 Humidity (%): 85.0 Sky Conditions: 20% cloud cover Cable difference is: na Pointing values: na Tsys (x1/s/x2): 33.7/40.3/51.9 ================================ t2181ht START ================================= 2026-04-14 17:30 t2181, Hart15M, Autostart-message Session t2181 auto-start message for Hart15M. --------------------------------------------- Started recording with source: 1055+018 at 104.17:30:00 UT ================================= t2181ht STOP ================================= 2026-04-15 17:30 t2181, Hart15M, Stop-message Session t2181 stop message for Hart15M. --------------------------------------- Comments: Hart15M has concluded T2181 No probelms reported Weather: Clear at the beginning with partly cloudy and overcast condiotions and light rain towards the end Data being e-shipped to BONN Observation finished at: 17:30:00 UT ================================ t2181kv READY ================================= 2026-04-15 01:03 t2181 , Sejong, Ready-message First Session of t2181: 1055+01817:30:00for 247 second (UT)ready message for Sejong(Kv) FMOUT-GPS: +31.3 usec Wx : Temperature (C) 19.8 Pressure (hPa) 993.5 Humidity (%) 32.6 ================================ t2181kv START ================================= 2026-04-15 01:04 t2181, Sejong, Start-message Session t2181 start-message for Sejong(Kv) Started recording with source1055+018 17:30:00 (UT) ================================= t2181kv STOP ================================= 2026-04-16 00:13 t2p181, Sejong, Stop-message Sejong finished t2p181 FMOUT-GPS 31.4usec ================================ t2181on START ================================= 2026-04-14 17:29 t2181on observations started Observations of schedule 't2181on' has started as planned. ================================ t2181sy START ================================= 2026-04-14 17:36 T2181 Start Message from SYOWA Station Dear IVS Team, SYOWA has started T2181 recording with the source: 1055+018 at 17:30:00 UTC, 14 Apr. 2026. Weather Condition - Time: 14 Apr. 2026 17:30:00 UTC - Temperature(C): -9.4 - Pressure(hPa): 1000.4 - Humidity(%): 81 - Sky Conditions: Cloudy Sincerely, Toshi ======================================== Toshihiro YAHAGI and Riku MASAKI Japan Antarctica Research Expedition 67 VLBI Observation Team @ SYOWA ======================================== ================================ t2181sy OTHER ================================= 2026-04-16 10:19 T2181 Completion Message from Syowa Station Dear IVS Team, SYOWA finished T2181 experiment. All scans of T2181 recorded using K5 system. Our K5 system was synchronized with GPS before the start of the session. The cable delay calibration signal was not recorded due to an instrument failure. The recorded data will be shipped by the ice-breaker Shirase and delivered to Japan in April 2027. Weather conditions at Syowa Station, Antarctica, at the end of the experiment. - Time: 15 Apr. 2026 17:30:00 UTC - Temperature(C): -9.4 - Pressure(hPa): 999.9 - Humidity(%): 67 - Sky Condition: Cloudy Sincerely, Toshi ======================================== Toshihiro YAHAGI and Riku MASAKI Japan Antarctica Research Expedition 67 VLBI Observation Team @ SYOWA ======================================== ================================================================================