GTAC Observation Log 1. Date : 20/12/2020 2. Observation Sr. No. : 12702 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) : Navnath 8. Command File : /data1/gtac/cmd/39_044/obs20dec_17h.cmd 9. LTA File : /gwbifrdata1/20dec/39_044_20dec2020_gwb_1700.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 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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C14 : Servo problem W03,S04 : GAB setting problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 20 Dec 2020 17:00:00 - 20 Dec 2020 18:30:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : ----------------------------------------------------------------------- 17:00:00 : Started setup. 17:30:07 : Started scan on 3C48 for ~ 9.39523 min. 17:30:00 : GSB authorization error..continued with only GWB. 17:30:00 : Started cmd file. /data1/gtac/cmd/39_044/obs20dec_17h.cmd 17:52:43 : Started scan on J2101-423 for ~ 5.10027 min. 17:59:19 : Started scan on 15oi for ~ 18.522 min. 18:21:22 : Started scan on J2101-423 for ~ 5.10027 min. 18:30:00 : Observation session over. -----------------------------------------------------------------------