GTAC Observation Log 1. Date : 21/04/2018 2. Observation Sr. No. : 10188 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 : 34_048 7. Operator(s) : Navnath, Sachin 8. Command File : /odisk/gtac/cmd/jroy/34_048_20apr.cmd 9. LTA File : /gsbifrdata/20apr/34_048_20apr2018.lta.1, /gsbifrdata/20apr/34_048_20apr2018.lta, /gwbifrdata/20apr/34_048_20apr2018_gwb.lta.1, /gwbifrdata/20apr/34_048_20apr2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/33_048.FLAGS.18 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 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) : 591 591 540 540 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C05 : : Servo Porblem W01 : : ABC Time out. C06 : : for GWB: CH-1(130pol) very low self and ripples in the band. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 20 Apr 2018 21:00:00 - 20 Apr 2018 23:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 21:00 : Started setup. 21:30 : Started cmd file /odisk/gtac/cmd/jroy/34_048_20apr.cmd 23:00 : Observation session over. ------------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 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 34_048 GPU_RF5 : 0 0 GPU_DDCLO5 : 0.0000 0.0000 GPU_SB5 : 1 1 GCODE5 : GPU5 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : IA GPU_BEAM_4 : PA GPU_BM_INT : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -----------------------------:::::::::::::: gsb_gac.dat :::::::::::::: # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-1:175 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-2:130 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-2:175 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 :::::::::::::: gwb_gac.dat :::::::::::::: # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-1:175 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-2:130 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-2:175 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-3:130 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-3:175 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-4:130 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 # BEAM-4:175 :: C00 C01 C02 C03 C04 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W02 W03 Total=19 ---