GTAC Observation Log 1. Date : 04/08/2020 2. Observation Sr. No. : 12268 3. Observer : Jayanta Roy, Bhaswati Bhattacharyya, Lina Levin, Ben Stappers, Paul Ray 4. Observer\'s Email : jroy@ncra.tifr.res.in, bhaswati.bhattacharyya78@gmail.com, lina.s.levin@gmail.com, Ben.Stappers@manchester.ac.uk, paul.ray@nrl.navy.mil 5. Project Name : Multi-frequency timing of millisecond pulsars discovered with the GMRT 6. Project Code : 38_045 7. Operator(s) : Deepak, Shriram 8. Command File : /odisk/gtac/cmd/jroy/38_045_4aug.1.cmd 9. LTA File : /gsbifrdata1/04aug/38_045_04aug2020_gsb.lta, /gwbifrdata1/04aug/38_045_04aug2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_045.FLAGS.19 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,OFF, IF-CH2 : 4+14 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 : ON 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 : 256 26. Channel Numbers : 0:255:1 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 :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work C04 : Feed problem. C14 : no fringe in 175 pol. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Aug 2020 16:00:00 - 04 Aug 2020 18:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 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 : 38_045 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : OFF GPU_BEAM_3 : PA 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 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 # BEAM-1:175 :: C00 C01 C02 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 # BEAM-3:130 :: C00 C01 C02 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 # BEAM-3:175 :: C00 C01 C02 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 -------------------------------------------------------------------------- 16:00 : Started settings 16:17 : Phasing done on 1526-138. 16:19 : Started command file, \'/odisk/gtac/cmd/jroy/38_045_4aug.1.cmd\' 18:00 : Command file stopped and observing session over.