GTAC Observation Log 1. Date : 06/09/2019 2. Observation Sr. No. : 11407 3. Observer : Jayanta Roy 4. Observer's Email : jroy@ncra.tifr.res.in 5. Project Name : DDT Observation(pulsar) 6. Project Code : DDTC064 7. Operator(s) : Rupsing, Surender 8. Command File : /odisk/gtac/cmd/jroy/ddt_6sep.cmd, /odisk/gtac/cmd/jroy/ddt_6sep.1.cmd 9. LTA File : /gsbifrdata1/06sep/ddtc064_06sep2019_gsb.lta, /gwbifrdata1/06sep/ddtc064_06sep2019_gwb.lta.1, /gwbifrdata1/06sep/ddtc064_06sep2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/DDTC064.FLAGS.3 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 : 20+10 dB, 32 MHz,OFF, IF-CH2 : 20+10 dB, 32 MHz,OFF 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 : PA 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 : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : No fringe @175 pol(GSB only). C14 : Mechanical work. S02 : Feed jam. W03 : No fringe @ 130 pol(GSB+GWB). 33. Note for Backup : 34. Start and End Time of Obs.(IST): 06 Sep 2019 12:00:00 - 06 Sep 2019 17:05:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status :Throughout the observed strong RFI(callsheet 2019.1581) 38. Comments (During Observations) : Note : Throughout the observed strong RFI. ------------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 : DDTC064 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : OFF GPU_BEAM_3 : IA 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 -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 W01 W02 Total=18 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 W01 W02 W03 Total=19 # BEAM-3:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 E05 S01 S06 W01 W02 W04 W05 W06 Total=24 # BEAM-3:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 E05 S01 S06 W01 W02 W03 W04 W05 W06 Total=25 ------------------------------------------------------------------------ # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 E05 S01 S03 S06 W01 W02 W04 W05 W06 Total=24 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 E05 S01 S03 S06 W01 W02 W03 W04 W05 W06 Total=25 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S03 W01 W02 Total=18 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S03 W01 W02 W03 Total=19 --------------------------------------------- 12:05 : Started scan on 1154-350 for ~ 1.34218 min. 12:08 : Started scan on 1154-350 for ~ 1.57706 min. 12:19 : Started command file. /odisk/gtac/cmd/jroy/ddt_6sep.cmd ---------------------------------------------------------------------- 14:50 : Stopped command file ---------------------------------------------------------------------- 14:55 : Phasing on 1154-350 ---------------------------------------------------------------------- 15:00 : Restarted command file 15:50 : packet loss in GWB. Somebody was copying beam data from GWBH9 machine. 16:00 : Restarted GWB. 16:10 : Started command file /odisk/gtac/cmd/jroy/ddt_6sep.1.cmd 17:00 : Observation stopped.