==================================== aov057 ==================================== Ho : Did not observe. Failure in X-band LNA. Ke : Procdure file error (16:30-16:24). Antenna failure (08:28-08:42). Km : Halted (03:12-11:19). No problems found for : Is, Sh, Ww, Yg No information for : Ur ================================== aov057ho =================================== 2021-03-21 23:47:21 Hobart26m unavailable this week (AOV057 and RV146) Hello everyone, The Hobart26 telescope will be unable to observe AOV057 and RV146 as scheduled this week. We've discovered a failure in one of the X-band LNAs which will require some time to repair or replace. I will send an update once we have a clearer idea of the estimated time for restoration. Best regards, Jamie McCallum 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. ================================ aov057is READY ================================ 2021-03-22 12:17:20 aov057, Ishioka, Ready-message Ishioka is ready for aov057. First source of aov057 is 1212+171 at 081day 16:30:00(UT). Weather is cloudy Temp:8.0 C, Hum:81.5 %, Pres:999.9 hPa FMOUT - GPS = +680.1 nsec at 081-10:55 Comments: The V signal contains feed LNA noise in 2-10GHz band. -----------------SEFD-INFORMATION---------------- Source: Cas-a at 081-02:34(UT). Az: 350.5 El: 66.8 BandA: Center 3512.4 MHz SEFD H : 2909.2 SEFD V : noise BandB: Center 5224.4 MHz SEFD H: 2688.6 SEFD V: noise BandC : Center 6344.4 MHz SEFD H: 3154.1 SEFD V: noise BandD : Center 10184.4 MHz SEFD H: 4404.9 SEFD V: noise ------------------------------------------------- -----------------Tsys-INFORMATION---------------- El: 90.0 at 081-02:32(UT). BandA: Center 3512.4 MHz Tsys H : 162.5 Tsys V : noise BandB: Center 5224.4 MHz Tsys H: 104.7 Tsys V: noise BandC : Center 6344.4 MHz Tsys H: 119.7 Tsys V: noise BandD : Center 10184.4 MHz Tsys H: 214.9 Tsys V: noise ------------------------------------------------- Sincerely, Tomokazu Nakakuki, GSI ================================ aov057is START ================================ 2021-03-22 16:31:24 aov057, Ishioka, Start-message Session aov057 start message for Ishioka ---------------------------------------------------------------- Started recording with source 1212+171 at 2021/081/16:30:00UT FMOUT-GPS : +0.674 microseconds Wx: Temperature(C): 4.3 Pressure(hPa): 1002.8 Humidity(%): 98.0 ================================ aov057is STOP ================================= 2021-03-24 01:38:59 aov057, Ishioka, Stop-message Ishioka finished aov057. Comments: The V signal contains feed LNA noise in 2-10GHz band. Weather is fine Temp:8.0 C, Hum:86.7 %, Pres:1009.7 hPa FMOUT - GPS = +674.9 nsec at 082-16:28 (UT). -----------------SEFD-INFORMATION---------------- Source: Cas-a at 083-00:41(UT). Az: 22.7 El: 64.1 Band-S: Center 2514.0 MHz SEFD H : 8340.3 SEFD V : noise Band-X Center 8524.0 MHz SEFD H: 2599.7 SEFD V: noise ------------------------------------------------- -----------------Tsys-INFORMATION---------------- El: 90.0 at 083-00:36(UT). Band-S: Center 2514.0 MHz Tsys H : 75.2 Tsys V : noise Band-X Center 8524.0 MHz Tsys H: 98.7 Tsys V: noise ------------------------------------------------- Sincerely, Kentaro Nozawa, GSI/AES =================================================== GSI VLBI group Geospatial Information Authority of Japan web: http://www.spacegeodesy.go.jp/vlbi/en/ =================================================== ================================ aov057ke START ================================ 2021-03-22 17:49:27 aov057, Katherine (Ke), start message Session aov057 start message for Katherine (Ke) ----------------------------------------------------------- Started recording with source: 1022-095 at 081/17:32:00 UT Comments: Experiment started late due to mistake in proc file. first good scan is 081-1732 Regards, Jay 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. ================================ aov057ke STOP ================================= 2021-03-24 11:34:03 Katherine has completed aov057 Katherine has completed aov057 The log and procedure files from experiment aov057 have been copied to ivs.bkg.bund.de: Formatter (H-maser) leads GPS by 12.2105 microsec at 2021.082.16:28:24.03 Additional experiment notes: Recorded GB to module 6:04:00. using the Mark5B+ recorder. The Module is being sent to SHAO using eTransfer. Known problems: Error in procedure file Antenna communication error Missed Scans: 081-1630 to 081-1724 (procedure file error) 082-0828 to 082-0842a (antenna communication error) Observers: Jay, Warren, Simin, Patrick Regards, Patrick Comments from the log: 2021.082.08:27:38.46;"ERROR - there hasbeen a power interruption. Please check generator status. 2021.082.08:42:17.35;"ERROR - there hasbeen a power interruption. Please check generator status. 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. ================================ aov057sh START ================================ 2021-03-22 16:14:45 FW: [EXTERNAL] aov057,sheshan,startmessage From: VLBI_sh Sent: Monday, March 22, 2021 11:46 AM To: IVS ; Behrend, Dirk (GSFC-61A.0)[NVI INC] ; aov-operations Subject: [EXTERNAL] aov057,sheshan,startmessage Dear colleagues Sheshan Station has started aov057 in mark5b mode and used CDAS as the terminal. The first source was 1212+171(081-1630,#7)at 16:30:00 UT. Weather conditions: fine. Clock offset=Fmout-GPS= 14.23 us at 15:41:40 UT. All systems are normal. Sheshan25m VLBI Team ================================ aov057sh STOP ================================= 2021-03-23 18:10:08 FW: [EXTERNAL] aov057,sheshan,stopmessage From: VLBI_sh Sent: Tuesday, March 23, 2021 12:33 PM To: IVS ; Behrend, Dirk (GSFC-61A.0)[NVI INC] ; aov-operations Subject: [EXTERNAL] aov057,sheshan,stopmessage Dear colleagues Sheshan Station has finished aov057 in mark5b mode and used CDAS as the terminal. The first last was 1128+385(082-1628,#3645)at 16:29:38 UT. Weather conditions: overcast. Clock offset=Fmout-GPS= 14.32 us at 16:28:25 UT. All systems are normal. Sheshan25m VLBI Team ================================ aov057ww START ================================ 2021-03-22 16:34:10 aov057, WARK12M (Ww), Start-message Warkworth 12m has started experiment aov057. First scan in the experiment is 081-1630 for source 1212+171 at 1630/081 (UT/DOY). Fmout leads GPS by (s): +3.9558e-05 The weather is 13.7 C, 93.3 %, 1014.1 mb (temperature, humidity, pressure). Comments/Problems: None. ================================ aov057ww STOP ================================= 2021-03-23 16:29:28 aov057, WARK12M (Ww), Stop-message Warkworth 12m has completed experiment aov057. Known problems: None. Missed scans: None. Observers: Axl Rogers ================================ aov057yg READY ================================ 2021-03-22 03:58:01 aov057 Yarragadee (Yg), ready message Session aov057 ready message for Yarragadee (Yg) ----------------------------------------------------------- First source: 1212+171 at 16:30:00 UT Formatter to GPS difference (fmout-GPS) is 12.8503 us at 081.03:57:19 UT Weather: Temperature (C): , Pressure (hPa): , Humidity (%): Additional operator comments (if any): clear sky Pointing results: SEFD S/X Source Az/El Offset (xEl) Offset (El) Tsys (S/X): Fringe check: Source: Array: Result: Additional Comments: Additional setup notes (OK = done, NOK = not checked/done): ----------------------------------------------------------- Checklist "Before observation" Sent by Jay (user alias: oper) System: Schedule file prepared OK Signals: RF and IF signal paths configured OK DBBC: Server software running OK DBBC: pps_sync sent (if reconfigured) OK DBBC: client software NOT running on DBBC OK DBBC: IFs correctly selected OK DBBC: Frequency settings correct OK Time: Maser ok OK Mark5: dim software running OK Mark5: Time correct (ntpq) OK Mark5: recording mode set (e.g. proc=xxxx; ready_disk) OK Mark5: reported VSNs agree with printed labels OK Mark5: configured (e.g. setupsx) OK Mark5: Times OK (i.e. mk5=dot? fmset may be required) OK Time: Field system time aggrees with station time (fmset) OK Time: Maser to GPS difference in usec (maserdelay command. Enter value@day/time) (value=+1.31641E-005@2021.081.03:53:08.04) OK Time: Formatter out to GPS difference in usec (clkoff command. Enter value@day/time) (value=/+1.28528E-005@2021.081.03:53:04.39) OK Time: delays OK, stable and within 1us (clkoff, maserdelay) OK Mark5: test recording OK (scan_check and autocorrelation) OK Tsys: systemp12 command working and Tsys looking OK (S ~85-95, X ~80-90) OK Antenna: pad clear of obstructions OK Antenna: has a kangaroo pressed the pedestal e-stop button? OK Antenna: Time OK (i.e. SNTP server OK) OK Antenna: in remote mode OK Antenna: Pointing and SEFD checked (put comment in the log, including source used, Az, El, offsets) (value=2021.081.02:57:35.20#fivpt#xoffset 257.7161 48.8087 0.00000 0.00234 0.00000 0.02027 0 1 7u 1921-293) OK Meteorology: Weather conditions ok (enter short meteorological report) (value=clear sky) OK System: Fringe Check Done? (Indicate if S and X-band fringes were detected) NOK Skype chat with other stations started NOK Additional notes: 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. ================================ aov057yg START ================================ 2021-03-22 16:41:48 aov057, Yarragadee (Yg), start message Session aov057 start message for Yarragadee (Yg) ----------------------------------------------------------- Started recording with source: 1212+171 at 081/16:30:00 UT Comments: Experiment started ok Regards, Jay 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. ================================ aov057yg STOP ================================= 2021-03-24 11:34:02 Yarragadee has completed aov057 Yarragadee has completed aov057 The log and procedure files from experiment aov057 have been copied to ivs.bkg.bund.de: Formatter (H-maser) leads GPS by 13.0823 microsec at 2021.082.16:28:28.04 Additional experiment notes: Recorded 6905.62 GB on HOB+1006. The data is being transferred electronically to SHAO. Known Problems? Missed Scans? Observers Jay, Warren, Simin, Patric Regards, Patrick Comments from the Log: 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. ================================================================================