GTAC Observation Log

1. Date : 08/05/2017
2. Observation Sr. No. : 9364
3. Observer : Huib T Intema, Preshanth Jagannathan, Mooley, Dale A Frail
4. Observer's Email : intema@strw.leidenuniv.nl, pjaganna@nrao.edu, kunal.mooley@physics.ox.ac.uk, dfrail@nrao.edu
5. Project Name : Filling the gaps in the 150 MHz GMRT sky survey, Part 2
6. Project Code : 32_055
7. Operator(s) : Deepak, Nilesh, Shilpa
8. Command File : /odisk/gtac/cmd/32_055/32_055_20170507_cmd1.txt, /odisk/gtac/cmd/32_055/32_055_20170507_cmd2.txt
9. LTA File : /gsbifrdata1/07may/32_055_07may2017.lta.1, /gsbifrdata1/07may/32_055_07may2017.lta
10. LogFlag File : /odisk/online1/logflags/32_055.FLAGS

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON

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 : IA
22. Beam - 2 : PA
23. ACQ BW : 33.333333 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 156 156 218 218 62 62
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C08 : Intermittent ABC time out.
C14 : Not released for observation (Mechanical work).
S02 : Not released for observation (Electrical work).

33. Note for Backup :

34. Start and End Time of Obs.(IST): 07 May 2017 21:00:00 - 08 May 2017 06:05:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :28

37. Comments (During Observations) :
20:50 : Started settings.
21:02:02 : Started scan on 3C286 for ~ 23.7565 min.

21:06 : C08 ABC time out, due to High temperature.
21:15 : mentioned phase cal is cal is rising @ 00:24.
21:38 : Phase cal changed to 1728+502.

21:39:55 : Started scan on 1728+502 for ~ 3.48966 min.
21:45:32 : Started scan on R14D81 for ~ 3.087 min.
21:49:11 : Started scan on R14D79 for ~ 2.95279 min.
21:53:05 : Started scan on R14D77 for ~ 2.95279 min.
21:56:43 : Started scan on R27D75 for ~ 2.95279 min.
22:00:24 : Started scan on R27D73 for ~ 3.087 min.
22:04:17 : Started scan on R14D80 for ~ 3.087 min.
22:08:14 : Started scan on R27D76 for ~ 3.087 min.

22:10 : C08 started working.
22:12:08 : Started scan on R27D74 for ~ 2.95279 min.
22:15:58 : Started scan on R14D78 for ~ 2.95279 min.
22:19:44 : Started scan on R27D72 for ~ 2.95279 min.
22:23:43 : Started scan on R15D81 for ~ 1.07374 min.

Note : Command file further phase cal observing is changed to 1740+521.

22:40 : Online socket open, so restarted online.

23:08 : Restarted command file.
01:13 : Command file stopped.

01:17 : Started scan on 3C286 for 12mins.
01:31 : Started  32_055_20170507_cmd2.txt command file.
05:52 : Stopped command file.

06:00 : Started scan on 3C48.
06:05 : Stopped scan and observing session over.