GTAC Observation Log 1. Date : 24/02/2019 2. Observation Sr. No. : 10912 3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur, Sanjay S. Kudale, Tyrel J. Johnson, Matthew Kerr 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 5. Project Name : Long-term timing follow-up for the third transitional redback millisecond pulsar J1227-4853 6. Project Code : 35_045 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd/jroy/35_045_23feb.cmd 9. LTA File : /gsbifrdata/23feb/35_045_23feb2019_gsb.lta, /gwbifrdata1/23feb/35_045_23feb2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_045.FLAGS.13 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,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 : 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 : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C01 : ABC time out C12 : RFI 33. Note for Backup : 34. Start and End Time of Obs.(IST): 24 Feb 2019 00:00:00 - 24 Feb 2019 02:10:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. 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_RF1 : 1460 1460 GPU_DDCLO1 : 0.0000 0.0000 GPU_SB1 : 1 1 GCODE1 : SUBA1 GPU_RF2 : 1460 1460 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : SUBA2 GPU_RF3 : 1460 1460 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : SUBA3 GPU_RF4 : 300 300 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 35_045 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 : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 S01 W01 Total=15 # BEAM-1:175 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 S01 W01 Total=15 # BEAM-2:130 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 S01 W01 Total=15 # BEAM-2:175 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 S01 W01 Total=15 [observer@oper2 INFO]$ more gwb_gac.dat # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 # BEAM-1:175 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 # BEAM-2:130 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 # BEAM-2:175 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 # BEAM-3:130 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 # BEAM-3:175 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 # BEAM-4:130 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 # BEAM-4:175 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16 23:25 : Started set up. 23:35 : Power equalized and phasing on 3C147. 23:50 : Phasing done on 1154-350. 00:00 : Started command file. '/odisk/gtac/cmd/jroy/35_045_23feb.cmd' 02:00 : Stopped command file and observation session is over.