GTAC Observation Log

1. Date : 15/01/2023
2. Observation Sr. No. : 15015
3. Observer : Poonam Chandra, James Leung, Luca Izzo, Harsh Kumar, Tara Murphy, Shriharsh P. Tendulkar, Varun Bhalerao
4. Observer\'s Email : pchandra@nrao.edu, jleu9465@uni.sydney.edu.au, luca.izzo@gmail.com, harshkosli13@gmail.com, tara.murphy@sydney.edu.au, shriharsh.tendulkar@tifr.res.in, varunb@iitb.ac.in
5. Project Name : Lowest frequency observations of the brightest gamma-ray burst ever: A case for joint uGMRT and ASKAP observations
6. Project Code : ddtC251
7. Operator(s) : Pramod, Sachin
8. Command File : /data1/gtac/cmd/43_094/ddtC251_15Jan2023_1100_cmd.py
9. LTA File : /gsbifrdata/15jan/ddtc251_15jan2023_gsb.lta, /gwbifrdata2/15jan/ddtc251_15jan2023_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) :
S01 : Taken for mechanical work.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 15 Jan 2023 11:00:00 - 15 Jan 2023 14:00:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :29

37. RFI Status :

38. Comments (During Observations) :

------------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  	: DDTC251
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_WALSH  	: OFF
GPU_ENV  	: RELEASED
--------------------------------
11:00 : Started set up.
11:25 : Started command file.
 \'/data1/gtac/cmd/43_094/ddtC251_15Jan2023_1100_cmd.py\'
NOTE : Around 12:38 target source was transiting.Hence stopped scan and Change the track to outer track.
14:00 : Stopped command file and observation session is over.