GTAC Observation Log

1. Date : 22/06/2016
2. Observation Sr. No. : 8674
3. Observer : Ewan O`Sullivan, Nimisha Kantharia
4. Observer's Email : eosullivan@cfa.harvard.edu, ngk@ncra.tifr.res.in
5. Project Name : The origin of the HI trail and ultra-steep radio structure in the NGC 5903/NGC 5898 group
6. Project Code : 30_020
7. Operator(s) : Navnath, Nilesh, Rupsing
8. Command File : /odisk/gtac/cmd/ngk/30_020/obs.cmd
9. LTA File : /gsbifrdata1/21jun/30_020_21jun2016.lta.1, /gsbifrdata1/21jun/30_020_21jun2016.lta
10. LogFlag File : /odisk/online1/logflags/30_020.FLAGS.7, /odisk/online1/logflags/30_020.FLAGS.6

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1402 MHz ,RF2 : 1402 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1340 MHz, ILO2 : 1340MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,OFF, IF-CH2 : 4+14 dB, 16 MHz,OFF

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : OFF
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 16.666666 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 138
28. LO5 -2  : 167

29. Frequency Parameters (TPA) : 1402 1402 1340 1340 62 62
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C02 : : Mech Work
C11 : : BLDC Work
C12 : : BLDC work

33. Note for Backup :

34. Start and End Time of Obs.(IST): 21 Jun 2016 18:00:00 - 22 Jun 2016 02:00:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :27

37. Comments (During Observations) :
17:30 : Started setup.
17:45 : Started power eq on 3c286 at 300 counts.
17:56 : Started scan on 3c286.
          phase ramp...GSB Chain stopped.
18:09 : Restarted scan on 3C286. 
18:25 : Started cmd file.

         /odisk/gtac/cmd/ngk/30_020/obs.cmd

18:45 : S-arm Power failure.
19:01 : E-arm Power Failure.
19:19 : Restarted command file. E-arm and S-arm power resumed.
01:42 : Stopped command file.
01:48 : Started scan on 3C468.1(3C286 set)
02:00 : Stopped scan and observation session over.