GTAC Observation Log

1. Date : 18/03/2022
2. Observation Sr. No. : 14036
3. Observer : Devojyoti Kansabanik
4. Observer\'s Email : dkansabanik@ncra.tifr.res.in
5. Project Name : Probing magnetic field of solar wind and coronal mass ejections using bright polarised sources from MWA POGS survey in the ecliptic plane
6. Project Code : 41_096
7. Operator(s) : Navnath, Nilesh, Shilpa, Shriram
8. Command File : /data1/gtac/cmd/41_096/41_096_18mar2k22/obs_41_096.py
9. LTA File : /gsbifrdata1/18mar/41_096_18mar2022_gsb.lta, /gwbifrdata1/18mar/41_096_18mar2022_gwb.lta
10. LogFlag File :   

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 32 MHz,OFF

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : TGC
18. GSB Fstop : ON
19. GAIN EQ : OFF
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : Volt
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) : 306 306 255 255 51 51
30. Integration Time : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
C02 : Servo problem.
C10 : Servo problem.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 18 Mar 2022 03:00:00 - 18 Mar 2022 09:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 8
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 4096
GPU_CHAN_NUM  	: 0:4095:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 500  500
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 41_096
GPU_CNTRL  	: TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: PA
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 4
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: OFF
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 8
GPU_VLT_BIT  	: 8
GPU_WALSH  	: OFF
GPU_ENV  	: TRIAL
--------------------------------------------------------------------------
# GSB GAC configuration is as follows : 
# BEAM-2:130 :: C00 C01 C04 C05 C06 C08 C09 C11 C12 C13 C14 E02 E03 E04 S01 S02 S03 S04 W01 W02 W03 W04 Total=22
# BEAM-2:175 :: C00 C01 C04 C05 C06 C08 C09 C11 C12 C13 C14 E02 E03 E04 S01 S02 S03 S04 W01 W02 W03 W04 Total=22
--------------------------------------------------------------------------
# GWB GAC configuration is as follows : 
# BEAM-2:130 :: C00 C01 C04 C05 C06 C08 C09 C11 C12 C13 C14 E02 E03 E04 S01 S02 S03 S04 W01 W02 W03 W04 Total=22
# BEAM-2:175 :: C00 C01 C04 C05 C06 C08 C09 C11 C12 C13 C14 E02 E03 E04 S01 S02 S03 S04 W01 W02 W03 W04 Total=22
--------------------------------------------------------------------------
02:40 : Started settings.
03:15 : Power equalized and phasing done on 3C286 for both GSB and GWB.
03:19 : \'/data1/gtac/cmd/41_096/41_096_18mar2k22/obs_41_096.py\' command file started.


08:05 -- 08:25 : CMC+ AGN hanged and not responding...

08:27 : Restarted command file for remaining sources.
09:34 : Stopped command file and observation closed.