GTAC Observation Log 1. Date : 07/09/2019 2. Observation Sr. No. : 11412 3. Observer : Tanmoy Laskar, Kate D Alexander, Edo Berger, Ryan Chornock, Deanne Coppejans, Wen-fai Fong, Cristiano Guidorzi, Raffaella Margutti, Carole Mundell, Patricia Schady 4. Observer's Email : tanmoylaskar@gmail.com, kalexander@cfa.harvard.edu, eberger@cfa.harvard.edu, chornock@ohio.edu, deanne.coppejans@gmail.com, wfong@northwestern.edu, guidorzi@fe.infn.it, rafmargutti@gmail.com, c.g.mundell@bath.ac.uk, pschady@mpe.mpg.de 5. Project Name : Constraining the progenitors and environments of Gamma-ray Bursts with uGMRT 6. Project Code : 36_019 7. Operator(s) : Navnath 8. Command File : /odisk/gtac/cmd/36_053/07sep19/obs_07sep19.cmd 9. LTA File : /gsbifrdata/07sep/36_019_06sep19_gsb.lta, /gwbifrdata1/07sep/36_019_07sep2019_gwb.lta.1 10. LogFlag File : /odisk/online1/logflags/36_053.FLAGS.5, /odisk/online1/logflags/36_053.FLAGS.4 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1399 MHz ,RF2 : 1399 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1450 MHz, ILO2 : 1450MHz , 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) : 1399 1399 1450 1450 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 07 Sep 2019 06:00:00 - 07 Sep 2019 08:07:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. RFI Status : 38. Comments (During Observations) : Note error : 06:00 - 07:00 : (Makeup time ) in gwb recording scan 0: flux cal, phase cal and Source scan got merged in due to GWB was not in Auto mode. ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 8 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 : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 36_053 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 : 128 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 06:00 : Started settings. 06:20 : Started scan on 3C147 for 8 min. 06:30 : Started cmd file. /odisk/gtac/cmd/36_053/07sep19/obs_07sep19.cmd Note Error : in gwb recording scan 0: flux cal, phase cal and Source scan got merged in due to GWB was not in Auto mode. 06:55 : Restarted cmd file with GWB in Auto mode. 08:00 : Stopped cmd file. 08:02 : Started scan on 3C48. 08:07 : Stopped scan and observing session over. --------------------------------------------------