GTAC Observation Log

1. Date : 20/07/2021
2. Observation Sr. No. : 13312
3. Observer : Poonam Chandra, Mooley, Ayan Biswas
4. Observer\'s Email : poonam@ncra.tifr.res.in, kmooley@caltech.edu, ayan.scc2@gmail.com
5. Project Name : uGMRT follow up of two radio-luminous stellar explosion afterglows discovered using the FIRST and VLASS surveys
6. Project Code : 40_075
7. Operator(s) : Manisha, Navnath, Nilesh, Shriram
8. Command File : /data1/gtac/cmd/40_075/20jul_1.py, /data1/gtac/cmd/40_075/20jul_2.py
9. LTA File : /gsbifrdata1/20jul/40_075_20jul2021_gsb.lta, /gwbifrdata1/20jul/40_075_20jul2021_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 : 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) : 306 306 255 255 51 51
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
C06 : Low fringe.
C08 : Low fringe.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 20 Jul 2021 09:35:00 - 20 Jul 2021 15:12:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :26

37. RFI Status :

38. Comments (During Observations) :
09:35 : Started settings.

------------GWB Setting---------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: -1 -1
GPU_RF4  	: 500  500
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 40_075
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  	: 8 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_ENV  	: RELEASED
--------------------------------------------------------------------------

09:48 : Started command file with a scan on 3C147 for ~ 09 min.
       \'/data1/gtac/cmd/40_075/20jul_1.py\'

10:30 : C04 taken for maintenance.
11:50 : C06 taken for FE maintenance work.

12:05 : Command file stopped.
12:05 : Started next command file,
        \'/data1/gtac/cmd/40_075/20jul_2.py\' 

12:10 : C05 taken for FE maintenance work.
12:37 : C06 released for observation.

12:37 : C08 taken for FE maintenance work.
13:00 : C08 released for observation.

13:05 : C05 released for observation.
15:12 : Command file stopped and observing session over.