GTAC Observation Log

1. Date : 22/09/2018
2. Observation Sr. No. : 10546
3. Observer : Veena V.S., Sarita Vig, Nirupam Roy
4. Observer's Email : veenagangothri@gmail.com, sarita@iist.ac.in, roy.nirupam@gmail.com
5. Project Name : HI mapping study of the prospective SNR candidate associated with G351.7-1.2
6. Project Code : 34_014
7. Operator(s) : Pramod, Sachin
8. Command File : /odisk/gtac/cmd/34_014/21sep18/obs_21sep.cmd
9. LTA File : /gsbifrdata1/21sep/34_014_21sep2018_gsb.lta, /gwbifrdata2/21sep/34_014_21sep2018_gwb.lta.1, /gwbifrdata2/21sep/34_014_21sep2018_gwb.lta
10. LogFlag File : /odisk/online1/logflags/34_108.FLAGS.8, /odisk/online1/logflags/34_014.FLAGS.9, /odisk/online1/logflags/34_014.FLAGS.8, /odisk/online1/logflags/34_014.FLAGS.12, /odisk/online1/logflags/34_014.FLAGS.11, /odisk/online1/logflags/34_014.FLAGS.10

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1427 MHz ,RF2 : 1427 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1490 MHz, ILO2 : 1490MHz , IVLO1 : 63 MHz, IVLO2 : 63 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 : 16.666666 MHz
24. Final BW : 4 MHz; Step # 1
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 137
28. LO5 -2  : 168

29. Frequency Parameters (TPA) : 1427 1427 1490 1490 63 63
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
W06  and C14 : Taken for mechanical work.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 21 Sep 2018 15:00:00 - 21 Sep 2018 22:05:00

35. ONLINE Machine : Lenyadri

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

37. Comments (During Observations) :

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 1
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400.0000
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 1450  1450
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 34_014
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 128
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
--------------------------------
15:00 : Started set up.
From 15:00  to 16:00  : There was problem for GSB in 
Note : There was problem for GSB in Full stroke mode and started GSB in Total intensity mode.

16:04 :  Started scan on 3C286 for 10 min.
16:14 : Stopped scan and started command file.
 '/odisk/gtac/cmd/34_014/21sep18/obs_21sep.cmd'
16:24 : GWB Acq. killed automatically hence restarted GWB.
16:37 : Restarted command file.
 '/odisk/gtac/cmd/34_014/21sep18/obs_21sep.cmd'
20:40 : Phase cal set.
21:22 : Source set.
21:30 : Started scan on 3C48.
22:00 : Stopped scan on 3C48 and closed observation session.