GTAC Observation Log 1. Date : 21/08/2021 2. Observation Sr. No. : 13423 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, Saxton, Michael Stroh, Carolin Villforth, Patricia Schady 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, rsaxton@sciops.esa.int, michael.stroh@northwestern.edu, c.villforth@bath.ac.uk, ps2018@bath.ac.uk 5. Project Name : Exploring Mass Ejection in SMBHs via GMRT Observations of TDEs 6. Project Code : 40_085 7. Operator(s) : Deepak, Navnath, Rupsing, Shilpa, Shriram, Surender 8. Command File : /data1/gtac/cmd/40_085/21aug21/obs.py 9. LTA File : /gsbifrdata1/21aug/40_085_21aug2021_gsb.lta, /gwbifrdata1/21aug/40_085_21aug2021_gwb.lta 10. LogFlag File : 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+12 dB, 32 MHz,ON, IF-CH2 : 4+12 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 : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : IA 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 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 :24 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. E02 : Feed jam. C05 : FE problem. C10 : TEL. problem S04 : Servo problem. E06 : GAB problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 Aug 2021 09:00:00 - 21 Aug 2021 19:05:00 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 : 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 : SUBA4 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 : 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 -------------------------------- 09:20 : Setup done. 09:21 : Started command file. \'/data1/gtac/cmd/40_085/21aug21/obs.py\' 10:32 : E02 AND E06 started working. 11:00 : S04 started working. 18:12 -18:17: Satellite RFI COSMOS2. 18:58 : S04 applied brakes. 19:04 : Command file stopped and observation session over.