GTAC Observation Log 1. Date : 08/06/2020 2. Observation Sr. No. : 12080 3. Observer : Apurba Bera, Surajit Mondal, Poonam Chandra 4. Observer\'s Email : apurba@ncra.tifr.res.in, surajit@ncra.tifr.res.in, poonam@ncra.tifr.res.in 5. Project Name : A search for late-time `kilonova` radio emission from short gamma ray bursts 6. Project Code : 38_108 7. Operator(s) : Manisha, Pramod 8. Command File : /odisk/gtac/cmd/38_108/s4.cmd 9. LTA File : /gsbifrdata1/08jun/38_108_08jun2020_gsb.lta, /gwbifrdata/08jun/38_108_08jun2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_108.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :21 32. Name of Non-Working Antennas (with reason for each) : C03 : Taken for mechanical work. C08 : Feed jammed C10 : Feed is not rotating E02 : No fringe S02 : Offsets S03 : Applied AZ brake S06 : MCM 14 time out W01 : Feed is not rotating W03 : GAB problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 08 Jun 2020 02:00:00 - 08 Jun 2020 08:30:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :22 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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1400 1400 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 38_108 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 -------------------------------- 02:00 : Started set up. 02:18 : Started scan on 3C286. 02:24 : Stopped scan and started command file. \'/odisk/gtac/cmd/38_108/s4.cmd\' 06:20 : S02 Started working 08:05 : command file stopped 08:06 : started scan on phase cal ~ 5mins. 08:16 : started scan on 3C48 ~ 10mins. 08:26 : stopped das and observation session over.