==================================== t2141 ===================================== 36 : Halted at 07:31. 6a : Did not participate. Kg : Antenna stuck (03:21-17:30). Kv : Reported clock jump. Ma : Halted (18:53-19:04). Ny : Missed first 3 scans. Oh : Many scans (~18%) commented out. Sm : Did not participate. Vm : Tracking problems (18:02-01:18). No problems found for : Ht, Sh, Wn, Wz, Yg =================================== t214136 =================================== 2020-09-17 22:25:34 T2141, DSS-36 DSS-36: Recording began at 259/173000 UTC, 0454-234, Scan 001 Recording ended at 260/073147 UTC, 0308-611, Scan 209 Problems Encountered: The VEX file had DSS-36 supporting for the full 24 hours but the DSN was scheduled to end at 0715 UTC. Activity was terminated at 073147 UTC. Scan 30 and scan 31 were missed due to a cable wrap issue. Regards, George Martinez Network Operations Project Engineer ================================ t2141ht READY ================================= 2020-09-15 17:15:05 t2141, Hart15M, Ready-message Session t2141 ready message for Hart15M. ---------------------------------------- Comments: Hart15M is ready to start T2141. All systems are nominal. Session is being operated remotely. First source: 1749+096 at 17:30:00 UT FMOUT-GPS: 2.6530 microseconds Wx: Temperature (C): 21.6 Pressure (mBar): 861.1 Humidity (%): 23.5 Sky Conditions: Partly cloudy Cable difference is: na Pointing values: na Tsys (x1/s/x2): 35.4/56.5/35.6 ================================ t2141ht START ================================= 2020-09-15 18:14:14 t2141, Hart15M, Start-message Session t2141 start message for Hart15M. ---------------------------------------- Started recording with source: 1749+096 at: 17:30:00 UT ================================= t2141ht STOP ================================= 2020-09-16 17:30:30 t2141, Hart15M, Stop-message Session t2141 stop message for Hart15M. --------------------------------------- Comments: Hart15M has completed T2141. One scan lost due to a wind-stow. No other issues to report. Weather comditions were mostly overcast at the start, partly cloudy in the middle and mostly clear by the end. Data will be e-shipped to Bonn. Problem scans: Source Scan start Explanation of problem 1741-038 259-1751 Wind stowed during scan Disk Inventory: A 0, B 2, C 0, D 1, E 1, F 0, G 1, H 0, (other larger) 7 Observation finished at: 17:30:00 UT ================================ t2141kg READY ================================= 2020-09-17 07:30:30 t2141, Koganei11, Ready and start message Dear colleagues, Koganei11 was ready for t2141 session and I was able to confirm the schedule started with source 0454-234 at 2020.259.17:30 UT. GPS-maser clock offset is -0.52 us for Koganei11 at 2020.259.17:30 UT. The weather was fine for Koganei. Temp: 22.1 C, Pressure: 1005.3 hPa, Humid: 96.5 % for Koganei11 on 2020.259.17:30 UT. Pointing values are not available due to power measurement system trouble. Best regards, KAWAI, Eiji Kashima Space Technology Center ================================ t2141kg START ================================= 2020-09-17 07:30:30 t2141, Koganei11, Ready and start message Dear colleagues, Koganei11 was ready for t2141 session and I was able to confirm the schedule started with source 0454-234 at 2020.259.17:30 UT. GPS-maser clock offset is -0.52 us for Koganei11 at 2020.259.17:30 UT. The weather was fine for Koganei. Temp: 22.1 C, Pressure: 1005.3 hPa, Humid: 96.5 % for Koganei11 on 2020.259.17:30 UT. Pointing values are not available due to power measurement system trouble. Best regards, KAWAI, Eiji Kashima Space Technology Center ================================= t2141kg STOP ================================= 2020-09-17 07:31:36 t2141, Koganei11, Stop message Dear Colleagues, We have completed all observations of t2141 session at Koganei11 with one known problem. The antenna tracking was stopped from scan_name=260-0321 until the end of the session. The weather of Koganei was fine. The observation log file was uploaded to the server, depot.cddis.eosdis.nasa.gov. Best regards, KAWAI, Eiji Kashima Space Technology Center ================================ t2141kv READY ================================= 2020-09-15 17:11:01 t2141, Sejong, Ready-message First source of t2141: 0454-234 at 259/17:30:00 for 89 second (UT) FMOUT-GPS: -34.4 usec Wx: Temperature (C) 19.4 Pressure (hPa) 992.0 Humidity (%) 99.0 Point values SEFD S/X1/X2 AZ/EL Source Offset1 Offset2 4534/1029/885 34/25 cas-a 0 +0.08 ================================= t2141kv STOP ================================= 2020-09-17 00:07:24 T2141, Sejong, Stop-message Sejong finished T2141. All scans are recorded. FMOUT-GPS: -34.4 usec ================================ t2141ny READY ================================= 2020-09-15 17:27:56 t2141, Ny-Alesund, Ready-message Session t2141 ready message for Ny-Alesund. ------------------------------------------- Comments: Did have a clock jump. First source: 1749+096 at 17:30:00 UT GPS-FMOUT: 52,30 microseconds Wx: Temperature (C): -1 Pressure (mBar): 1012,6 Humidity (%): 77,50 Sky Conditions: Clear Cable difference is: longer cable makes the reading larger by 669,1 microseconds and is nominal Pointing values: SEFD X/S Source Az/El Offset1 Offset2 3658,0/2288,5 Casa 77,1037/58,1850 -0,00629 -0,01760 3548,5/2502,6 Casa 141,2840/49,8355 0,00090 -0,01762 Tsys (x1/s/x2): 124/193/238 ================================ t2141ny START ================================= 2020-09-15 17:32:15 t2141, Ny-Alesund, Start-message Session t2141 start message for Ny-Alesund. ------------------------------------------- Started recording with source: 1749+096 at: 17:30:00 UT ================================= t2141ny STOP ================================= 2020-09-16 17:36:05 t2141, Ny-Alesund, Stop-message Session t2141 stop message for Ny-Alesund. ------------------------------------------ Comments: Warm receiver Disk Inventory: A 0, B 0, C 0, D 6, E 0, F 0, G 0, H 0, (other larger) 10 Observation finished at: 17:30 UT ================================ t2141sh START ================================= 2020-09-15 19:02:34 FW: [EXTERNAL] t2141,sheshan,Startmessage From: VLBI_sh Sent: Tuesday, September 15, 2020 1:38 PM To: IVS ; Behrend, Dirk (GSFC-61A.0)[NVI INC] Subject: [EXTERNAL] t2141,sheshan,Startmessage Dear colleagues, Sheshan Station has started t2141 in mark5b mode and used CDAS as the terminal. The first source was 0454-234(259-1730a,#7)at 17:30:00 UT. Weather conditions: overcast. Clock offset=Fmout-GPS= 2.81us at 17:34:38 UT. All systems are normal. ================================= t2141sh STOP ================================= 2020-09-16 23:29:29 FW: [EXTERNAL] t2141,sheshan,Stopmessage From: VLBI_sh Sent: Wednesday, September 16, 2020 7:25 PM To: IVS ; Behrend, Dirk (GSFC-61A.0)[NVI INC] ; geodesy@mpifr-bonn.mpg.de Subject: [EXTERNAL] t2141,sheshan,Stopmessage Dear colleagues, Seshan Station has finished t2141 in mark5b mode and used CDAS as the terminal. The last source was 0814+425(260-1728a,#6773) at 17:30:00 UT. Weather conditions: rainy. Clock offset = Fmout-GPS = 2.86 us at 17:31:34 UT. All systems are normal. ================================ t2141vm START ================================= 2020-09-16 06:59:54 t2141 VERAMZSW delay start massage The start of observation of VERAMZSW was delayed. An error occurred in the 2B mechanism 30 minutes after the start of the schedule at 17:30 UT and the antenna stopped. The 2B mechanism error was cleared at 00:08 UT, after that, the operation of the antenna has been continued. 260doy 05:30 UT Temp: 28.3C, Press: 1006.3hPa, RHum: 53.7%, HM-GPS: -0.5 micro sec, fine 1st scan at 20259173000, source 0454-234 -- Takaaki Jike Mizusawa VLBI Observatory, NAOJ ================================= t2141vm STOP ================================= 2020-09-17 06:55:44 t2141 VERAMZSW stop message VERAMZSW finished t2141. The antenna stopped during the following times. 18:02 - 01:18, 03:42 - 03:44, 07:24 - 07:27 and 14:19-14:22. Recording to K5VSSP was completed without any problem. -- Takaaki Jike Mizusawa VLBI Observatory, NAOJ ================================ t2141wn START ================================= 2020-09-15 18:08:31 t2141, Wettzell (Wn), Start-message Wettzell (Wn) started t2141 at scheduled time. First source (Wn): 1749+096 at 17:30:00 UT (start data). System status: OK Regards, Wettzell obs. ================================ t2141wz START ================================= 2020-09-15 18:07:59 t2141, Wettzell (Wz), Start-message Wettzell (Wz) started t2141 at scheduled time. First source (Wz): 1749+096 at 17:30:00 UT (start data). System status: OK Regards, Wettzell obs. ================================ t2141yg START ================================= 2020-09-15 21:35:00 t2141, Yarragadee (Yg), start message Session t2141 start message for Yarragadee (Yg) ----------------------------------------------------------- Started recording with source: 1 at 259/3:30 UT Comments: Experiment started OK Regards, Earl University of Tasmania Electronic Communications Policy (December, 2014). This email is confidential, and is for the intended recipient only. Access, disclosure, copying, distribution, or reliance on any of it by anyone outside the intended recipient organisation is prohibited and may be a criminal offence. Please delete if obtained in error and email confirmation to the sender. The views expressed in this email are not necessarily the views of the University of Tasmania, unless clearly intended otherwise. ================================= t2141yg STOP ================================= 2020-09-18 04:07:59 Yarragadee has completed t2141 Yarragadee has completed t2141 The log and procedure files from experiment t2141 have been copied to ivs.bkg.bund.de: Formatter (H-maser) leads GPS by 5.6133 microsec at 2020.260.17:32:59.03 Additional experiment notes: Recorded 980.94 GB on HOB+0098. The data is being transferred electronically to BONN. Known Problems? Missed Scans? Observers Earl, warren, Lim, and Patrick Regards, Patrick Comments from the Log: 260.07:08:50 UT Tsys S band high 260.09:06:44 UT Tsys S band high, X band low 260.11:02:54 UT Tsys S band high, X band low 260.12:52:34 UT Tsys S band high University of Tasmania Electronic Communications Policy (December, 2014). This email is confidential, and is for the intended recipient only. Access, disclosure, copying, distribution, or reliance on any of it by anyone outside the intended recipient organisation is prohibited and may be a criminal offence. Please delete if obtained in error and email confirmation to the sender. The views expressed in this email are not necessarily the views of the University of Tasmania, unless clearly intended otherwise. ================================= t2141yg WIKI ================================= 2020-09-15 21:35:00 t2141 YARAGADEE 12 m ================================================================================