GTAC Observation Log

1. Date : 16/06/2017
2. Observation Sr. No. : 9490
3. Observer : MAYUKH PAHARI, J S Yadav, C.H. IshwaraChandra, Jai Verdhan Chauhan
4. Observer's Email : mayukh@iucaa.in, jsyadav@tifr.res.in, ishwar@ncra.tifr.res.in, 4u.verdhan@gmail.com
5. Project Name : Understanding the connection between accretion and ejection mechanisms in microquasars using GMRT and ASTROSAT
6. Project Code : 32_086
7. Operator(s) : Deepak, Sachin, Shilpa
8. Command File : /odisk/gtac/cmd/32_086/obs.cmd
9. LTA File : /gsbifrdata1/15jun/32_086_15jun2017.lta, /gwbifrdata2/15jun/32_086_15jun2017_gwb.lta
10. LogFlag File : /odisk/online1/logflags/32_086.FLAGS.1

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , IVLO1 : 51 MHz, IVLO2 : 51 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 : ON
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 33.333333 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 1371 1371 1320 1320 51 51
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) :
C08 : All MCM timed out.
W02 : FPS Jammed in cal mode.
C13 : Servo probelm (El run flag abscent).
E05 : No fringe in GWB

33. Note for Backup :

34. Start and End Time of Obs.(IST): 15 Jun 2017 22:00:00 - 16 Jun 2017 03:37:00

35. ONLINE Machine : Lenyadri

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

37. Comments (During Observations) :
------------GWB Setting----------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200.0000
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Total_Intensity
GPU_RF4  	: 1460  1460
GCODE4  	: 32_086
--------------------------------------------------------------------------

22:15 : Started scan on 3C286.
22:30 : Stopped scan on 3C286 and started command file.
23:14 : GSB stopped working, fringe vanished for all antennas.

23:14 : Started GWB correlator. 
23:15 : Observation continued with GWB correlator.
00:15 : Command file stopped. Started scan on 3C286 for 10mins.

00:32 : Restarted command file.
03:24 : Stopped command file.

03:29 : Started scan on 3C48.
03:37 : Stopped scan and observing session over.