==================================== r1838 ===================================== Ft : Az encoder problem (17:00-1930). Observed with warm receiver. Ke : Needed to reset and reconfigure DBBC three times. Ma : Warning! Two ready messages with different cable difference values. Wz : fmout-gps jumped 0.2usec around 08:05. Yg : Late start due to communication issues. Needed to reset DBBC. No problems found for : Is, Kv, Ny, Sh ================================ r1838ft READY ================================= 2018-04-23 16:32:52 R1838, Fortaleza, ready-message Session R1838 ready-message for Fortaleza. ------------------------------------------- Comments: Receiver is Warm. First source: 0727-115 at 113 - 17:04:33 UT. FMOUT-GPS: 0.541 microseconds. Sky Conditions: Partially cloudy. Cable difference is: longer cable makes the reading larger by 106.4 microseconds and is nominal. Pointing values: SEFD (X/S) Source AZ/EL Offset(AZ) Offset(EL) ---/--- Taurus-A 43/53 0.006 -0.007 -- FORTALEZA VLBI TEAM. ================================ r1838ft START ================================= 2018-04-16 19:42:20 R1838, Fortaleza, start-message Session R1838 start-message for Fortaleza. ------------------------------------------- Comments: Receiver is warm! We are with problems in receiver box temperature control system. The receiver box is working open. Fortaleza started R1838 session late due to a problem with AZ Encoder. First source recorded: 0202+319 at 106 - 19:34:11 UT. FMOUT-GPS: 0.455 microseconds. Sky Conditions: Mostly cloudy. Cable difference is: longer cable makes the reading larger by 106 microseconds and is nominal. Pointing values: Not done. -- FORTALEZA VLBI TEAM. ================================= r1838ft STOP ================================= 2018-04-17 17:10:00 R1838, Fortaleza, Stop-message Fortaleza finished R1838 session at scheduled time. End of schedule: 107 - 16:59:55 UT. Comments: Recording started late due to AZ Encoder failure. Start of recording: 106 - 19:34:11 UT Receiver is warm. Data will be uploaded to Washington by e-transfer. Data and session log will be uploaded late due to a failure in our internet link. Disk Inventory Size D/2000GB = 03 Size G/4000GB = 02 Size H/6000GB = 01 Size J/8000GB = 08 Other Size (1000GB) = 01 Last update: APR/2018. ================================ r1838is READY ================================= 2018-04-16 06:25:54 [vlbi] r1838, Ishioka, Ready-message Ishioka is ready for r1838. First source of r1838 is 3C371 at 106day 17:00:00(UT). The data recorder is K5/VSI system. All systems are normal. Weather is fine Temp:17.6 C, Hum:47.6 %, Pres:1002.1 hPa FMOUT - GPS = +383.7 nsec at 106-06:18 Tsys: X-band=45.1 K, S-band=245.5 K (EL=90) SEFD: X-band=1487.7 Jy, S-band=2137.2 Jy (Cas-A, AZ=320.2, EL=42.7) About r1838 data transfer, Correlator is WASH. data server(GSI) -> iserv02 data directory(m5b) -> /ddn/vlbi/data/r1838is/m5b We will inform WACO, when the data is ready. Sincerely, Kentaro Nozawa, GSI/AES =================================================== GSI VLBI group Geospatial Information Authority of Japan e-mail: gsi-vlbi-oper@ml.mlit.go.jp web: http://www.spacegeodesy.go.jp/vlbi/en/ =================================================== ================================ r1838is START ================================= 2018-04-16 17:04:25 r1838, Ishioka, Start-message Session r1838 start message for Ishioka ---------------------------------------------------------------- Started recording with source 3c371 at 2018/106/17:00:00UT FMOUT-GPS : +0.395 microseconds Wx: Temperature(C): 10.1 Pressure(hPa): 1010.3 Humidity(%): 91.0 ================================= r1838is STOP ================================= 2018-04-18 00:57:08 [vlbi] r1838, Ishioka, Stop-message Ishioka finished r1838. Comments: All scans were recorded. --- Automatic measurement results at about 107-16:58 --- Temp: 11.3 C, Hum:98.8 %, Pres:1006.3 hPa FMOUT - GPS = +394.2 nsec at 107-16:58 (UT). Tsys: X-band=54.0 K, S-band=234.1 K (EL=90) SEFD: X-band=1766.9 Jy, S-band=2473.1 Jy (Cygnus-A, AZ=65.9, EL=45.7) We put the file "r1838is.log" on "cddis.gsfc.nasa.gov". Sincerely, Kentaro Nozawa, GSI/AES =================================================== GSI VLBI group Geospatial Information Authority of Japan e-mail: gsi-vlbi-oper@ml.mlit.go.jp web: http://www.spacegeodesy.go.jp/vlbi/en/ =================================================== ================================= r1838ke WIKI ================================= 2018-04-17 13:01:00 r1838 Katherine 12m Disk VSN: USN-0183/2000 | Data volume at beginning: 0.417 GB 1700 UT experiment started OK (mas) received persistent Alarm: Large different between formatter and maserdelay and Alarm: Delay through DBBC has changed, monitor for stability and reset DBBC if it drifts. Need to reconfigure and restart the DBBC for several times (mas) Missed scans 106-1724b till 106-1758, 106-1839 till 106-1846a, 106-1901a till 106-1912b (mas) ================================ r1838kv READY ================================= 2018-04-17 00:30:13 r1838, Sejong, Ready-message FMOUT-GPS: -25.1 usec Wx: Temperature (C) 13.0 Pressure (hPa) 998.3 Humidity (%) 64.6 ================================ r1838kv START ================================= 2018-04-17 00:30:45 r1838 Sejong, Start-message Session r1838 start-message for Sejong(Kv) ================================= r1838kv STOP ================================= 2018-04-18 02:10:26 r1838,Sejong,Stop-message comment: ================================ r1838ma READY ================================= 2018-04-16 09:00:53 r1838, MATERA, Ready-message Session r1838 ready message for MATERA. --------------------------------------- Comments: X First source: 3c371 at 17:00:00 UT GPS-FMOUT: 21.044 microseconds Wx: Temperature (C): 15 Pressure (mBar): 954 Humidity (%): 89 Sky Conditions: cloudy sky Cable difference is: longer cable makes the reading larger by 264.8 microseconds and is nominal Pointing values: SEFD X/S Source Az/El Offset1 Offset2 3454/1258 CASA 354/72 -0.0155 -0.0101 Tsys (x1/s/x2): 128/228/0 ================================ r1838ma READY ================================= 2018-04-16 16:41:29 r1838, MATERA, Ready-message Session r1838 ready message for MATERA. --------------------------------------- First source: 3c371 at 17:00 UT GPS-FMOUT: 21.053 microseconds Wx: Temperature (C): 12 Pressure (mBar): 955 Humidity (%): 96 Sky Conditions: cloudy sky Cable difference is: longer cable makes the reading smaller by 197.5 microseconds and is nominal Pointing values: SEFD X/S Source Az/El Offset1 Offset2 3454/1258 casa 354/72 -0.055 -0.0101 Tsys (x1/s/x2): 128/228/0 ================================ r1838ma START ================================= 2018-04-16 17:00:53 r1838, MATERA, Start-message Session r1838 start message for MATERA. --------------------------------------- Started recording with source: 3c371 at: 17:00:00 UT ================================= r1838ma STOP ================================= 2018-04-17 17:11:57 r1838, MATERA, Stop-message Session r1838 stop message for MATERA. -------------------------------------- Comments: x Problem scans: Source Scan start Explanation of problem x x x Disk Inventory: A 0, B 0, C 0, D 18, E 1, F 0, G 1, H 1, (other larger) 0 Observation finished at: 17:00:00 UT ================================ r1838ny READY ================================= 2018-04-16 16:33:55 r1838, Ny-Alesund, Ready-message Session r1838 ready message for Ny-Alesund. ------------------------------------------- Comments: Thin layer of ice and snow on the dish First source: 3C371 at 17:00:00 UT GPS-FMOUT: 179.6 microseconds Wx: Temperature (C): 0 Pressure (mBar): 1005 Humidity (%): 94 Sky Conditions: Clody Cable difference is: longer cable makes the reading larger by 651 microseconds and is nominal Pointing values: SEFD X/S Source Az/El Offset1 Offset2 6022/1835 CygnusA 341/30 -0.0002 0.0075 5918/1699 CasA 304/54 -0.0104 0.0068 3201/2129 TaurusA 201/32 0.0074 0.0085 Tsys (IFA/IFB/IFC): 114/100/51 ================================ r1838ny START ================================= 2018-04-16 17:00:00 r1838, Ny-Alesund, Autostart-message Session r1838 auto-start message for Ny-Alesund. ------------------------------------------------ Started recording with source: 3c371 at 106.17:00:00 UT ================================= r1838ny STOP ================================= 2018-04-17 17:06:06 r1838, Ny-Alesund, Stop-message Session r1838 stop message for Ny-Alesund. ------------------------------------------ Comments: Tsys overflow since 16:05 doy 107. Disk Inventory: A 0, B 0, C 0, D 10, E 0, F 0, G 0, H 0, (other larger) 10 Observation finished at: 16:58:15 UT ================================= r1838sh STOP ================================= 2018-04-17 16:19:17 r1838,sheshan,stopmessage Dear colleagues, Sheshan 25m Station has stopped r1838 in mark5b mode with CDAS as the terminal. The last source was 1908-201(107-1658;#7487) at 16:59:55 UT. Weather conditions: cloudy. Clock offset=Fmout-GPS= 107.90us at 16:15:58UT. All systems are normal . best regards sheshan 25m VLBI Team ================================ r1838wz START ================================= 2018-04-16 17:00:48 R1838, Wettzell (Wz), Start-message Wettzell (Wz) started R1838 at scheduled time. First source (Wz):  3C371 at 106.17:00 UT (start data). Delta ut(ref-efos18) = 3.94 micsec. at 106.15:45 UT. Delta ut(ref-tac2) = 0.938 micsec. at 106.15:45 UT. wx/wet. Regards, Wettzell obs. _______________________________________________ IVS-ops mailing list IVS-ops@lists.nasa.gov https://lists.nasa.gov/mailman/listinfo/ivs-ops ================================= r1838wz STOP ================================= 2018-04-17 17:18:26 R1838, Wettzell (wz), Stop-message Wettzell (wz) finished R1838 at scheduled time. All scans recorded. No technical problems. Regards, Wettzell obs. ================================= r1838yg WIKI ================================= 2018-04-17 13:01:00 r1838 Yarragadee 12m Disk VSN: OSOD-117/2000 | Data volume at beginning: 0.545 GB Experiment started late due to communication issue (network connection loss) and need to restart DBBC. Start experiment at 18:34:09 UT (mas) missed scans from 106-1700a till 106-1829a (Mas). VNC failed 10:40UT to 12:17UT. Brett reset the VNC (Atifur). ================================================================================