GTAC Observation Log 1. Date : 19/12/2020 2. Observation Sr. No. : 12697 3. Observer : Tanmoy Laskar, Kate D Alexander, Edo Berger, Yvette Cendes, Ryan Chornock, Deanne Coppejans, Hendrik vanEerten, Tarraneh Eftekhari, Aprajita Hajela, Assaf Horesh, Raffaella Margutti, Carole Mundell, Matt Nicholl, Michael Stroh, Carolin Villforth 4. Observer\'s Email : tanmoylaskar@gmail.com, kate.alexander@northwestern.edu, eberger@cfa.harvard.edu, yvette.cendes@cfa.harvard.edu, chornock@northwestern.edu, deanne.coppejans@gmail.com, h.j.van.eerten@bath.ac.uk, teftekhari@cfa.harvard.edu, aprajitahajela2015@u.northwestern.edu, assafh@mail.huji.ac.il, rafmargutti@gmail.com, c.g.mundell@bath.ac.uk, matt.nicholl@cfa.harvard.edu, michael.stroh@northwestern.edu, c.villforth@bath.ac.uk 5. Project Name : Exploring Mass Ejection in SMBHs via GMRT Observations of TDEs 6. Project Code : 39_044 7. Operator(s) : Deepak 8. Command File : /odisk/gtac/cmd/39_044/obs_19dec2020.cmd 9. LTA File : /gwbifrdata1/19dec/39_044_19dec2020_gwb.lta, /gwbifrdata1/19dec/39_044_19dec2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/39_044.FLAGS 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 18. GSB Fstop : ON 19. GAIN EQ : OFF 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 :29 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 19 Dec 2020 18:00:00 - 19 Dec 2020 19:08:00 35. ONLINE Machine : Shivneri 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 : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_044 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 4 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 16 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 18:00 : Started setup. 18:08 : Started scan on 3C48 for 8mins. 18:20 : Started command file. 19:05 : Command file stopped and observation session over.