GTAC Observation Log 1. Date : 03/03/2024 2. Observation Sr. No. : 16454 3. Observer : Tanmoy Laskar, Kate D Alexander, Edo Berger, Ryan Chornock, Deanne Coppejans, Hendrik vanEerten, Wen-fai Fong, Cristiano Guidorzi, Raffaella Margutti, Patricia Schady 4. Observer\'s Email : tanmoylaskar@gmail.com, kate.alexander@northwestern.edu, eberger@cfa.harvard.edu, chornock@berkeley.edu, deanne.coppejans@gmail.com, h.j.van.eerten@bath.ac.uk, wfong@northwestern.edu, guidorzi@fe.infn.it, rafmargutti@gmail.com, ps2018@bath.ac.uk 5. Project Name : Constraining the progenitors and environments of Gamma-ray Bursts with uGMRT 6. Project Code : 45_061 7. Operator(s) : Navnath 8. Command File : /data1/gtac/cmd/45_061/45_061_03Mar2024_0300_cmd.py 9. LTA File : /gwbifrdata2/03mar/45_061_03mar2024_b4_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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) : 591 591 540 540 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) : C09 : feed not in focus. W06 : Frequently applying brakes. W03 : LMC donw. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 03 Mar 2024 03:00:00 - 03 Mar 2024 04:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 470 470 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 45_061 GPU_RF5 : 1060 1060 GPU_DDCLO5 : 0.000000 0.000000 GPU_SB5 : 1 1 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 : Voltage Detection 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 ------GWB RFI Filter Setting----- FILTERED_SIGNALS : RFI_ALL # RFI_ALL=All signals filtered / RFI_CH1 =Channel 1 only / RFI_CH2=Channel 2 only EXTERNAL MEDIAN : 0 # integer value(-128 to 127) THRESHOLD VALUE : 4 # integer value(0 to 127) CONSTANT VALUE : 0 # integer value(-128 to 127) FILTERING OPTION : DIGITAL NOISE # BYPASS / CONSTANT=constant value is used / THRESHOLD / DIGITAL_NOISE DDC_STATUS : OFF # DDC = ON/OFF -------------------------------- 03:00:00 : Started setup. 03:10:00 : Setup failed for GWB. restarted setup file 03:25:00 : Setup done. reduced time on target. 03:31:22 : Started scan on J1058+0133 for ~ 3.22122 min. 03:35:41 : Started scan on GRB240218A for ~ 15.0324 min. 03:52:25 : Started scan on J1058+0133 for ~ 0.178957 min. 03:55:00 : W06 LMC gone down..AGN1 got hung. : 3C286 not get covered. 04:00:00 : observation closed.