==================================== r1827 =====================================
Ft : Reported that S-band seems unstable. Power failure (08:52-08:56)
Observed with warm receiver.
Ht : Antenna drive failure caused by false alarm triggering emergency stop.
Missed 10 scans (20:37-20:45, 00:40-00:57).
Kv : Antenna stuck for 4 hours (19:50-00:15).
No problems found for : Is, Ke, Mc, Ny, Wn, Yg
================================ r1827ft READY =================================
2018-02-02 18:45:27 <renato.abreu@inpe.br> R1827, Fortaleza, ready-message
Session R1827 ready-message for
Fortaleza.
-------------------------------------------
Comments:
Receiver
is warm.
We are with problems in receiver box temperature control
system. The receiver box is working open.
First source: 2255-282 at 029 - 17:00:00 UT.
FMOUT-GPS: 0.730 microseconds.
Sky Conditions:
Overcast.
Cable difference is: longer cable makes the reading larger by
104.3 microseconds and is nominal.
Pointing values:
SEFD (X/S) Source Az/El Offset1 Offset2
/ Cygnus-A 011/44 0.023 0.004 (pointed with warm receiver)
--
FORTALEZA VLBI TEAM.
================================= r1827ft STOP =================================
2018-02-02 18:46:10 <renato.abreu@inpe.br> R1827, Fortaleza, Stop-message
Fortaleza finished R1827 session at scheduled time.
End of schedule: 030 - 16:47:58 UT.
Comments:
Receiver is warm.
Scan from 08:52:57 ut to 08:56:38 ut were missed due to a power failure.
S band amplifier presents an intermittent problem. The stage 3 bias
current reads unusual value and the signal drops in all S band channels.
Data will be uploaded to Wash by e-transfer.
Disk Inventory
Size D/2000GB = 03
Size G/4000GB = 03
Size H/6000GB = 01
Size J/8000GB = 08
Other Size (1000GB) = 01
Last update: JAN/2018.
Fortaleza VLBA Team.
================================ r1827ht READY =================================
2018-01-29 16:38:11 <oper@hartrao.ac.za> r1827, Hart15M, Ready-message
Session r1827 ready message for Hart15M.
----------------------------------------
Comments:
Hart15m is ready to start R1827ht
All systems are nominal
First source: 2255-282 at 17:00:00 UT
FMOUT-GPS: 12.6670 microseconds
Wx: Temperature (C): 16.2 Pressure (mBar): 863.5 Humidity (%): 87.7
Sky Conditions: Overcast
Cable difference is: na
Pointing values: na
Tsys (x1/s/x2): 38.5/44.9/40.8
================================ r1827ht START =================================
2018-01-29 17:00:00 <oper@hartrao.ac.za> r1827, Hart15M, Autostart-message
Session r1827 auto-start message for Hart15M.
---------------------------------------------
Started recording with source: 2255-282 at 029.17:00:00 UT
================================= r1827ht STOP =================================
2018-01-30 17:01:13 <oper@hartrao.ac.za> r1827, Hart15M, Stop-message
Session r1827 stop message for Hart15M.
---------------------------------------
Comments:
Hart15M has completed R1827
Missed following scans due antenna drive failure caused by fault in dicrete harness triggering false emergency stop:
from scan 029-2037b up to scan 029-2045;
from scan 030-0040 up to scan 030-0057a
Weather conditions: overcast throughout
Data will be e-shipped to Washington
Disk Inventory: A 0, B 0, C 0, D 1, E 0, F 0, G 2, H 1, (other larger) 7
Observation finished at: 16:59:55 UT
================================ r1827is START =================================
2018-01-29 17:01:26 <vlbi@spacegeodesy.go.jp> r1827, Ishioka, Start-message
Session r1827 start message for Ishioka
----------------------------------------------------------------
Started recording with source oj287 at 2018/029/17:00:00UT
FMOUT-GPS : +0.422 microseconds
Wx: Temperature(C): 0.7 Pressure(hPa): 995.0 Humidity(%): 97.8
================================= r1827is STOP =================================
2018-01-31 01:06:36 <gsi-vlbi-oper@ml.mlit.go.jp> [vlbi] r1827, Ishioka, Stop-message
Ishioka finished r1827.
Comments:
All scans were recorded.
--- Automatic measurement results at about 030-16:57 ---
Temp: 0.0 C, Hum:75.8 %, Pres:1006.7 hPa
FMOUT - GPS = +416.2 nsec at 030-16:57 (UT).
Tsys: X-band=45.9 K, S-band=351.1 K (EL=90)
SEFD: X-band=1361.5 Jy, S-band=1806.8 Jy (Virgo-A, AZ=136.1, EL=59.4)
We put the file "r1827is.log" on "cddis.gsfc.nasa.gov".
Sincerely,
NUMAJIRI Katsumi, GSI/AES
===================================================
GSI VLBI group
Geospatial Information Authority of Japan
e-mail: gsi-vlbi-oper at ml.mlit.go.jp
web: http://www.spacegeodesy.go.jp/vlbi/en/
===================================================
================================= r1827ke WIKI =================================
2018-01-29 23:27:00 <auscope-observers@list.utas.edu.au> r1827 Katherine 12m wiki information
Disk VSN: WSRT-039 | Data volume at beginning: 0.256GB
17:00UT - Experiment started OK (Ross).
================================ r1827kv READY =================================
2018-01-30 01:52:52 <lsw860210@gmail.com> r1827, Sejong, Ready-message
FMOUT-GPS: -23.7 usec
Wx: Temperature (C) -3.6 Pressure (hPa) 1000.9 Humidity (%) 87.6
================================ r1827kv START =================================
2018-01-30 01:57:31 <lsw860210@gmail.com> r1827 Sejong, Start-message
Session r1827 start-message for Sejong(Kv)
================================= r1827kv STOP =================================
2018-01-31 04:35:59 <lsw860210@gmail.com> r1827,Sejong,Stop-message
Comment: DOY 029 ut 21:08 ~ DOY 030 ut 00:12 Antenna movement error
================================ r1827mc READY =================================
2018-01-29 16:40:51 <oper@med.ira.inaf.it> r1827, Medicina, Ready-message
Session r1827 ready message for Medicina.
-----------------------------------------
First source: oj287 at 17:00:00 UT
GPS-FMOUT: 8.18 microseconds
Wx: Temperature (C): 6.5 Pressure (mBar): 1028.1 Humidity (%): 87.4
Sky Conditions: foggy
Cable difference is: na
Pointing values:
SEFD X/S Source Az/El Offset1 Offset2
286/482 3c123 90/45 0.004 0.000
Tsys (x1/s/x2): 35/44/28
================================ r1827mc START =================================
2018-01-29 17:00:01 <oper@med.ira.inaf.it> r1827, Medicina, Autostart-message
Session r1827 auto-start message for Medicina.
----------------------------------------------
Started recording with source: oj287 at 029.17:00:01 UT
================================= r1827mc STOP =================================
2018-01-30 17:02:07 <oper@med.ira.inaf.it> r1827, Medicina, Stop-message
Session r1827 stop message for Medicina.
----------------------------------------
Comments:
success, no known problems
Observation finished at: 17:00 UT
================================ r1827ny READY =================================
2018-01-29 16:39:32 <vlbi@kartverket.no> r1827, Ny-Alesund, Ready-message
Session r1827 ready message for Ny-Alesund.
-------------------------------------------
First source: OJ287 at 17:00:00 UT
GPS-FMOUT: 108.76 microseconds
Wx: Temperature (C): -7.3 Pressure (mBar): 1007.3 Humidity (%): 65.9
Sky Conditions: overcast
Cable difference is: longer cable makes the reading larger by
678.6 microseconds and is nominal
Pointing values:
SEFD X/S Source Az/El Offset1 Offset2
1218/1739 cygnus a 276/41 -0.0072 -0.0001
1402/1686 cas a 232/67 0.0019 0.0002
1404/1939 taurus a 151/28 0.0031 0.0126
Tsys (IFA/IFB/IFC): 96/69/53
================================ r1827ny START =================================
2018-01-29 17:00:00 <vlbi@kartverket.no> r1827, Ny-Alesund, Autostart-message
Session r1827 auto-start message for Ny-Alesund.
------------------------------------------------
Started recording with source: oj287 at 029.17:00:00 UT
================================= r1827ny STOP =================================
2018-01-30 17:01:35 <vlbi@kartverket.no> r1827, Ny-Alesund, Stop-message
Session r1827 stop message for Ny-Alesund.
------------------------------------------
Disk Inventory: A 0, B 0, C 0, D 7, E 0, F 0, G 0, H 0, (other larger) 9
Observation finished at: 16:59:55 UT
================================ r1827wn START =================================
2018-01-29 18:32:58 <vlbi@fs.wettzell.de> r1827, Wettzell (wn), Start-message
Wettzell (wn) started r1827 at scheduled time.
First source (wn): OJ287 at 17:00:00 UT (start data).
Delta ut(ref-efos60) = 2.853 micsec. at 029.17:45 UT.
Delta ut(ref-tac2) = 0.932 micsec. at 029.17:45 UT.
wx/covered, no rain.
Regards,
Wettzell obs.
================================= r1827wn STOP =================================
2018-01-30 17:12:37 <vlbi@fs.wettzell.de> r1827, Wettzell (wn), Stop-message
Wettzell (wz) finished r1827 at scheduled time.
wx/almost clear sky, misty.
Regards,
Wettzell obs.
================================= r1827yg WIKI =================================
2018-01-29 23:27:00 <auscope-observers@list.utas.edu.au> r1827 Yarragadee 12m wiki information
Disk VSN: IAA-0034 | Data volume at beginning: 0.385GB
17:00UT - Experiment started OK (Ross).
================================================================================