GTAC Observation Log

1. Date : 02/02/2022
2. Observation Sr. No. : 13914
3. Observer : Ayan Biswas, Poonam Chandra, Coralie Neiner
4. Observer\'s Email : ayan.scc2@gmail.com, poonam@ncra.tifr.res.in, coralie.neiner@obspm.fr
5. Project Name : Survey of Close Magnetic Massive Binaries with the uGMRT
6. Project Code : 41_010
7. Operator(s) : Nilesh, Shriram
8. Command File : /data1/gtac/cmd/41_010/02_Feb/obs1.py
9. LTA File : /gsbifrdata/02feb/41_010b_02feb2022_band4_gsb.lta, /gsbifrdata/02feb/41_010a_02feb2022_band5_gsb.lta, /gwbifrdata/02feb/41_010b_02feb2022_band4_gwb.lta, /gwbifrdata/02feb/41_010a_02feb2022_band5_gwb.lta
10. LogFlag File :  

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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/TGC
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Full_Stokes
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) : 1409 1409 1460 1460 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.
C05 : Feed not rotating.
C11 : Self power fluctuations.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 02 Feb 2022 05:00:00 - 02 Feb 2022 08:26:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
04:50 : Started settings.

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF3  	: 550  550
GPU_DDCLO3  	: 0.000000  0.000000
GPU_SB3  	: 1 1
GCODE3  	: 41_010B
GPU_RF4  	: 1460  1460
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 41_010A
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 8
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: ON
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_WALSH  	: OFF
GPU_ENV  	: RELEASED
--------------------------------

05:08 : Started scan on 3C286 for ~ 12 min.

05:20 : Noticed that WRONG FIRST LO for SUBA-4 GSB, 
        mistakenly it was set to 1450 instead of 1460.
        corrected GSB LO for SUBA-4.

05:25 : Started command file.
         /data1/gtac/cmd/41_010/02_Feb/obs1.py
08:10 : Command filer stopped.
08:16 : Started scan on 3C286~ 10 min.
08:26 : Scan stopped and observing session over.