GTAC Observation Log

1. Date : 21/09/2021
2. Observation Sr. No. : 13526
3. Observer : Ayan Biswas, Poonam Chandra, Nayana AJ, Roger Chevalier, Keiichi Maeda, Peter Brown, Alak Ray
4. Observer\'s Email : ayan.scc2@gmail.com, poonam@ncra.tifr.res.in, nayan89deva@gmail.com, rac5x@virginia.edu, keiichi.maeda@kusastro.kyoto-u.ac.jp, grbpeter@yahoo.com, akr@tifr.res.in
5. Project Name : Understanding Young Supernovae Interacting With Their Progenitor Winds With the Aid of Low Frequency Observations
6. Project Code : 40_082
7. Operator(s) : Navnath, Nilesh
8. Command File : /data1/gtac/cmd/poonam/40_082/21sep2021/obs.py
9. LTA File : /gwbifrdata2/21sep/40_082_21sep2021_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 : 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) : 1409 1409 1460 1460 51 51
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) :
C03 : Mechanical Work.
S06 : Maintenance.
C01 : Maintenance.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 21 Sep 2021 11:00:00 - 21 Sep 2021 13:30:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
11:00 : 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  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 1450 1450
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 40_082
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
--------------------------------
11:10 : GSB correlator processes not getting start. 
11:25 : Tried multiple attempts, then continued with GWB only.

11:38 : Started command file.
              /data1/gtac/cmd/poonam/40_082/21sep2021/obs.py
11:40:45 : Started scan on 3C286 for ~ 5.01079 min.
11:47:28 : Started scan on SN2020BVC for ~ 30.0647 min.
12:19:16 : Started scan on 3C286 for ~ 5.01079 min.
12:26:01 : Started scan on SN2020BVC for ~ 29.8858 min.
12:58:00 : Started scan on 3C286 for ~ 4.83183 min.
13:04:48 : Started scan on SN2020BVC for ~ 15.5692 min.
13:22:37 : Started scan on 3C286 for ~ 5.18975 min.
13:28 : Stopped scan and observation closed.
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