GTAC Observation Log 1. Date : 27/11/2020 2. Observation Sr. No. : 12610 3. Observer : Yulan Liu, Joris PW Verbiest, Krishnakumar MA, George Hobbs, Abhimanyu Susobhanan, BHAL CHANDRA JOSHI, Shi Dai, Ziwei Wu 4. Observer\'s Email : yliu@physik.uni-bielefeld.de, verbiest@physik.uni-bielefeld.de, kk.ambalappat@gmail.com, george.hobbs@csiro.au, s.abhimanyu@tifr.res.in, bcj@ncra.tifr.res.in, shi.dai@csiro.au, zwu@physik.uni-bielefeld.de 5. Project Name : Probing the Ionised Interstellar Medium with Pulsars 6. Project Code : 38_026 7. Operator(s) : Nilesh, Surender 8. Command File : /odisk/gtac/cmd/38_026/obs_27nov.txt 9. LTA File : /gsbifrdata1/27nov/38_026b_27nov2020_band3_gsb.lta, /gsbifrdata1/27nov/38_026a_27nov2020_band4_gsb.lta, /gwbifrdata1/27nov/38_026b_27nov2020_band3_gwb.lta, /gwbifrdata1/27nov/38_026a_27nov2020_band4_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_026B.FLAGS.11, /odisk/online1/logflags/38_026B.FLAGS.10, /odisk/online1/logflags/38_026A.FLAGS.12, /odisk/online1/logflags/38_026A.FLAGS.11 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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 : Total_Intensity 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) : 591 591 540 540 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C08 : Servo problem + MCM 14 time out. W01 : Feed Jam + Mechanical work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Nov 2020 12:00:00 - 27 Nov 2020 20:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : 12:00 : Started settings. ------------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 : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF3 : 500 500 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : 38_026B GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 38_026A GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : PA 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 GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 12:15 : Started power eq on 3C286. 12:20 : Started phasing on 3C286. # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C02 C06 C09 C11 C12 C14 Total=7 # BEAM-1:175 :: C01 C02 C06 C09 C11 C12 C14 Total=7 # BEAM-2:130 :: C00 C04 C05 C10 C13 E02 E03 S01 S02 W02 Total=10 # BEAM-2:175 :: C00 C04 C05 C10 C13 E02 E03 S01 S02 W02 Total=10 12:30 : Started command file. /odisk/gtac/cmd/38_026/obs_27nov.txt 12:32 : Source not taken by online, source list format not correct. stopped command file. 12:42 : Restarted command file. /odisk/gtac/cmd/38_026/obs_27nov.txt 14:20 : S-arm Optical Fibre cut. S03,S04,S06 TIME OUT. 17:30 : C08 and W01 released for observation. 20:00 : Stopped command file and observing session over. -------------------------------------