GTAC Observation Log 1. Date : 15/06/2020 2. Observation Sr. No. : 12114 3. Observer : Biny Sebastian, Omkar Suresh Bait, Dominik J. Bomans 4. Observer\'s Email : biny@ncra.tifr.res.in, omkar@ncra.tifr.res.in, bomans@astro.rub.de 5. Project Name : uGMRT survey of Green pea galaxies: Understanding the evolution of radio synchrotron emission and magnetic fields 6. Project Code : 38_010 7. Operator(s) : Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/38_010/15jun/s23/obs.txt,, /odisk/gtac/cmd/38_010/15jun/s25/obs.txt 9. LTA File : /gsbifrdata1/15jun/38_010_15jun2020_gsb.lta, /gwbifrdata2/15jun/38_010_15jun2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_010.FLAGS.11, /odisk/online1/logflags/38_010.FLAGS.10 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 : Full_Stokes 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 : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :25 32. Name of Non-Working Antennas (with reason for each) : C03 : Maintenance. C06 : Servo problem. C11 : Feed problem. E03 : Very low self. S06 : ABC timeout. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Jun 2020 12:00:00 - 15 Jun 2020 19:10:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 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 : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 38_010 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 : 32 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF ------------------------------------------------------------------------- 12:00 : Started settings. 12:21 : Started scan on 3C147 for ~ 15.3008 min. 12:53 : \'/odisk/gtac/cmd/38_010/15jun/s23/obs.txt\' command file started. 13:06 : S01, S02 got abc reset. 14:07 : S01, S02 and S06 started working. 15:55 : Command file stopped. 15:56 : started scanon 0842+185 for 5mins. 16:02 : Started command file /odisk/gtac/cmd/38_010/15jun/s25/obs.txt 16:16 : S02 ABC timeout 16:47 : S01 and S02 ABC reset. 17:00 : S01,S02 and S06 got ABC reset. 17:30 : S01,S02 and S06 started working. 18:45 : Command file stopped. 18:48 : Started scan on 3C286 for 15mins. 18:50 : RFI Lines seen in band from 1190 to 1240 MHz 19:02 : Observation stopped.