GTAC Observation Log 1. Date : 28/11/2020 2. Observation Sr. No. : 12611 3. Observer : Ujjwal Panda, Bhaswati Bhattacharyya, Jayanta Roy, Ben Stappers, Michael Keith, Mateusz Malenta, Maura Ann McLaughlin, Paul Ray, Scott M. Ransom, Jayaram Narayanan Chengalur, Andrew Lyne, Sanjay S. Kudale, Shubham Singh, Wes Armour, Karel Adamek 4. Observer\'s Email : ujjwalpanda97@gmail.com, bhaswati@ncra.tifr.res.in, jroy@ncra.tifr.res.in, Ben.Stappers@manchester.ac.uk, mkeith@pulsarastronomy.net, mateusz.malenta@student.manchester.ac.uk, maura.mclaughlin@mail.wvu.edu, paul.ray@nrl.navy.mil, sransom@nrao.edu, chengalur@ncra.tifr.res.in, andrew.lyne@manchester.ac.uk, ksanjay@gmrt.ncra.tifr.res.in, ssingh@ncra.tifr.res.in, wes.armour@oerc.ox.ac.uk, karel.adamek@oerc.ox.ac.uk 5. Project Name : GMRT High Resolution Southern Sky (GHRSS) survey for millisecond pulsars and transients : A SKA precursor survey 6. Project Code : 39_062 7. Operator(s) : Pramod, Shilpa, Shriram, Surender 8. Command File : /odisk/gtac/cmd/bhaswati/39_062_23nov.1.cmd, /odisk/gtac/cmd/bhaswati/39_062_23nov.2.cmd 9. LTA File : /gsbifrdata1/27nov/39_062_27nov2020_gsb.lta, /gwbifrdata1/27nov/39_062_27nov2020_gwb.lta.2, /gwbifrdata1/27nov/39_062_27nov2020_gwb.lta.1, /gwbifrdata1/27nov/39_062_27nov2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/39_062.FLAGS.5 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , 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 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 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) : 306 306 255 255 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. S03 : Fiber cut. S04 : Fiber cut. S06 : Fiber cut. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Nov 2020 22:00:00 - 28 Nov 2020 08:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :25 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_062 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : IA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-3:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-3:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-4:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-4:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 :::::::::::::: gsb_gac.dat :::::::::::::: # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 W01 W02 W03 W04 W05 W06 Total=26 -------------------------------------------------- 21:00:00 : Started set-up. 21:56:02 : Started scan on 3C48 for ~ 7.2142 min. 22:09:21 : Started command file. 21:00 - 22:35 : Observed strong RFI. 22:35:00 : Restored Collect_MS2 and Restarted GWB only 22:35:32 : Restarted command file. 22:55:42 : Restarted GWB due to dasmon not restored properly 22:59:32 : Restarted command file. \'/odisk/gtac/cmd/bhaswati/39_062_23nov.1.cmd\' 00:43:19 : W01 removed from GAC, due to not showing fringes. 04:00:00 : Command file stopped. 04:00:01 : Restarted command file, \'/odisk/gtac/cmd/bhaswati/39_062_23nov.2.cmd\' 08:00 : Stopped command file and observation session is over.