GTAC Observation Log 1. Date : 01/08/2020 2. Observation Sr. No. : 12252 3. Observer : Omkar Suresh Bait, Biny Sebastian 4. Observer\'s Email : omkar@ncra.tifr.res.in, biny@ncra.tifr.res.in 5. Project Name : HI imaging of the nearest known blueberry galaxy 6. Project Code : 37_104 7. Operator(s) : Navnath, Pramod, Sachin 8. Command File : /odisk/gtac/cmd/37_104/1aug20/obs.cmd 9. LTA File : /gsbifrdata1/01aug/37_104_01aug2020_gsb.lta, /gwbifrdata2/01aug/37_104_01aug2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/37_104.FLAGS.2, /odisk/online1/logflags/37_104.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1396.2975 MHz ,RF2 : 1396.2975 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1335 MHz, ILO2 : 1335MHz , IVLO1 : 61.2975 MHz, IVLO2 : 61.2975 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 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 : 16.666666 MHz 24. Final BW : 4 MHz; Step # 2 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 138.7025 28. LO5 -2 : 166.2975 29. Frequency Parameters (TPA) : 1396.2975 1396.2975 1335 1335 61.2975 61.2975 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work W04 and C04 : Feed problem 33. Note for Backup : 34. Start and End Time of Obs.(IST): 01 Aug 2020 08:00:00 - 01 Aug 2020 17:05:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 100.0000 GPU_FINAL_BW : 100.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 37_104 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 : 16 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 07:50 : Started set up. 08:16 : Started scan on 3C147. 08:26 : Stopped scan and started command file. \'/odisk/gtac/cmd/37_104/1aug20/obs.cmd\' 10:36 : C05 taken for electrical work. 11:05 : W04 released for observation. 16:40 : Stopped command file. 16:45 : Started scan on 3C286. 17:00 : Stopped scan on 3C286 and closed observation session.