GTAC Observation Log 1. Date : 19/05/2020 2. Observation Sr. No. : 12018 3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur, Sanjay S. Kudale, Tyrel J. Johnson, Matthew Kerr, Patrick Weltevrede, Paulo Cesar Freire 4. Observer\'s Email : jroy@ncra.tifr.res.in, paul.ray@nrl.navy.mil, bhaswati@ncra.tifr.res.in, Ben.Stappers@manchester.ac.uk, chengalur@ncra.tifr.res.in, ksanjay@gmrt.ncra.tifr.res.in, tyrel.j.johnson@gmail.com, matthew.kerr@gmail.com, Patrick.Weltevrede@manchester.ac.uk, pfreire@mpifr-bonn.mpg.de 5. Project Name : Long-term timing follow-up for the third transitional redback millisecond pulsar J1227-4853 6. Project Code : 38_037 7. Operator(s) : Navnath 8. Command File : /odisk/gtac/cmd/jroy/38_037_19may.2.cmd 9. LTA File : /gsbifrdata/19may/38_037_19may2020_gsb.lta, /gwbifrdata1/19may/38_037_19may2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_037.FLAGS.4 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , 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 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 : OFF 22. Beam - 2 : Volt 23. ACQ BW : 16.666666 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 156 156 218 218 62 62 30. Integration Time : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : : Mech work W02 : : MCM 3 Timeout W06 : : feed jam 33. Note for Backup : 34. Start and End Time of Obs.(IST): 19 May 2020 20:00:00 - 19 May 2020 23:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status :Due Strong RFI phasing in GSB was not clear. 38. Comments (During Observations) : :::::::::::::: 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 S01 W01 Total=16 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 :::::::::::::: gwb_gac.dat :::::::::::::: # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=15 # BEAM-1:175 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=15 # BEAM-2:130 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=15 # BEAM-2:175 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=15 # BEAM-3:130 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=15 # BEAM-3:175 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=15 # BEAM-4:130 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=15 # BEAM-4:175 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=15 ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 8 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 : 300 300 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 38_037 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : PA GPU_BM_INT : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : Voltage Detection GPU_BEAM_S : OFF ---------------------- 19:00:00 : Started setup. : GSB setup, Power eq and phasing. 19:16:40 : Started scan on 1154-350 for ~ 2.88568 min. 19:29:50 : Started scan on 0837-198 for ~ 0.0671088 min. 19:30:04 : Started scan on 0837-198 for ~ 4.79828 min. 19:35:02 : Started scan on 0837-198 for ~ 2.85212 min. 19:38:04 : Started scan on 0837-198 for ~ 1.81194 min. 19:40:05 : Started scan on 0837-198 for ~ 8.55637 min. 19:48:59 : Started scan on 0837-198 for ~ 2.95279 min. 19:52:05 : Started scan on 0837-198 for ~ 7.58329 min. 19:59:45 : Started scan on 0837-198 for ~ 3.0199 min. 20:03:07 : Started scan on 0837-198 for ~ 1.34218 min. 20:07:18 : Started scan on 0837-198 for ~ 5.13382 min. 20:12:59 : Started scan on 0837-198 for ~ 1.1073 min. 20:16:54 : Started scan on 1154-350 for ~ 1.1744 min. 20:21:46 : Started scan on J1227-4853 for ~ 62.9481 min. 21:26:08 : Started scan on 1154-350 for ~ 4.79828 min. 21:31:04 : Started scan on 1154-350 for ~ 2.11393 min. 21:36:49 : Started scan on J1227-4853 for ~ 38.4533 min. 23:00:00 : Observation session over. ---------------------------------