GTAC Observation Log 1. Date : 04/12/2018 2. Observation Sr. No. : 10706 3. Observer : Suma Murthy, Raffaella Morganti, Nissim Kanekar, Tom Oosterloo 4. Observer's Email : murthy@astro.rug.nl, morganti@astron.nl, nkanekar@ncra.tifr.res.in, oosterloo@astron.nl 5. Project Name : A search for HI absorption in low luminosity radio AGNs at intermediate redshifts 6. Project Code : 35_079 7. Operator(s) : Nilesh 8. Command File : /odisk/gtac/cmd/nissim/j0833\+2212.cmd, /odisk/gtac/cmd/nissim/j0757\+2736.cmd, /odisk/gtac/cmd/nissim/j0822\+5438.cmd 9. LTA File : /gsbifrdata1/04dec/35_079_03dec2018_gsb.lta.2, /gsbifrdata1/04dec/35_079_03dec2018_gsb.lta.1, /gsbifrdata1/04dec/35_079_03dec2018_gsb.lta, /gwbifrdata/04dec/35_079_03dec2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_079.FLAGS.11, /odisk/online1/logflags/35_079.FLAGS.10 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 793 MHz ,RF2 : 793 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 855 MHz, ILO2 : 855MHz , IVLO1 : 62 MHz, IVLO2 : 62 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 : 16.666666 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 793 793 855 855 62 62 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : C02 : : Low Fringe (GSB+GWB). C13 : : CH-2 : GSB : Very high self power. W04 : : CH-2 : GSB+GWB : Strong RFI 33. Note for Backup : 34. Start and End Time of Obs.(IST): 03 Dec 2018 23:45:00 - 04 Dec 2018 06:05:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : 23:40 : Started settings. ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 2 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 : 820 820 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 35_079 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 : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- ------------GSB Setting--------- GSB_MODE : Realtime GSB_LTA : 8 GSB_ACQ_BW : 16.666666 GSB_FINAL_BW : 0 GSB_EDGE_FRQ : 0 GSB_CHAN_MAX : 512 GSB_CHAN_NUM : 0:511:1 GSB_STOKES : Total_Intensity GSB_CNTRL : ONLINE GSB_FSTOP : ON GSB_BEAM_1 : OFF GSB_BEAM_2 : OFF GSB_GAINEQ : ON GSB_BB_LO : 138:167 GSB_HOSTS : gsbm1_shivneri undefined : OFF undefined : 306 -------------------------------- ------------------------------------ Settings for sources 1: J0833+2212 ------------------------------------ Source list : /odisk/gtac/source/nk.list Command file : /odisk/gtac/cmd/nissim/j0833+2212.cmd Target source : J0833+2212 Flux calibrator : 3C147 Phase calibrator: 0840+132 Line frequency : 784.8 MHz All ALCs ON RF Band : 770 MHz (720-820 MHz sub-band) LO(1) : 855 MHz LO(5) : 138 167 MHz LO(4) : 62 MHz IF BW : 18 MHz Baseband BW : 16.67 MHz Step : 0 Channels : 512 lta : 8m TPA 793 793 855 855 62 62 -------------------------------- 23:53 : Started scan on 3C147 for ~ 7 min. 00:00 : Changed antennas track to INNER. 00:12 : Started command file with a scan on 0840+132. /odisk/gtac/cmd/nissim/j0833+2212.cmd 01:34 : Stopped command file, and changed settings. ------------GSB Setting--------- GSB_MODE : Realtime GSB_LTA : 8 GSB_ACQ_BW : 16.666666 GSB_FINAL_BW : 0 GSB_EDGE_FRQ : 0 GSB_CHAN_MAX : 512 GSB_CHAN_NUM : 0:511:1 GSB_STOKES : Total_Intensity GSB_CNTRL : ONLINE GSB_FSTOP : ON GSB_BEAM_1 : OFF GSB_BEAM_2 : OFF GSB_GAINEQ : ON GSB_BB_LO : 139:166 GSB_HOSTS : gsbm1_shivneri undefined : OFF undefined : 306 -------------------------------- Source list : /odisk/gtac/source/nk.list Command file : /odisk/gtac/cmd/nissim/j0757+2736.cmd Target source : J0757+2736 Flux calibrator : 3C147 Phase calibrator: 0735+331 Line frequency : 781.1 MHz All ALCs ON RF Band : 770 MHz (720-820 MHz sub-band) LO(1) : 850 MHz LO(5) : 139 166 MHz LO(4) : 61 MHz IF BW : 18 MHz Baseband BW : 16.67 MHz Step : 0 Channels : 512 lta : 8m 01:36 : Started command file with a scan on 3C147. /odisk/gtac/cmd/nissim/j0757+2736.cmd 03:37 : Stopped command file and changed settings. Source list : /odisk/gtac/source/nk.list Command file : /odisk/gtac/cmd/nissim/j0822+5438.cmd Target source : J0822+5438 Flux calibrator : 3C147 Phase calibrator: 0834+555 Line frequency : 764.1 MHz All ALCs ON RF Band : 770 MHz (720-820 MHz sub-band) LO(1) : 695 MHz LO(5) : 139 166 MHz LO(4) : 61 MHz IF BW : 18 MHz Baseband BW : 16.67 MHz Step : 0 Channels : 512 lta : 8m 03:40 : Started command file. /odisk/gtac/cmd/nissim/j0822+5438.cmd 06:02 : Stopped command file, and closed observations.