GTAC Observation Log 1. Date : 04/06/2018 2. Observation Sr. No. : 10311 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) : Deepak, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/jroy/34_048_4jun.cmd 9. LTA File : /gsbifrdata1/04jun/34_048_04jun2018_610_gsb.lta, /gsbifrdata1/04jun/34_048_04jun2018_1420_gsb.lta, /gwbifrdata/04jun/34_048_lo550_04jun2018_gwb.lta, /gwbifrdata/04jun/34_048_lo1460_04jun2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/34_048A.FLAGS.2, /odisk/online1/logflags/34_048.FLAGS.7 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 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 : PA 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : E03 : Servo problem. W01 : Servo problem. W06 : Servo problem. W05 : No fringe in GSB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Jun 2018 18:35:00 - 04 Jun 2018 21:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : ------------GWB Setting---------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF2 : 550 550 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : -1 -1 GCODE2 : 34_048A GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 34_048 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : PA GPU_BEAM_4 : PA GPU_BM_INT : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : For 32 inputs GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF --------------------------------------------------------------------------- # sub 2 # C00 C01 C02 C05 C10 C11 C12 C13 W01 S01 ante 10 7 6 5 19 12 9 2 11 8 26 cp 0;defs 2;subar 2 tpa 591 591 540 540 51 51 --------------------------------------------------------------------------- # sub 4 # C03 C04 C06 C08 C09 C14 W02 W03 W04 W05 W06 E02 E03 E04 E05 E06 S02 S03 S04 S06 ante 20 1 3 20 24 4 10 13 14 15 16 25 17 18 21 22 23 27 28 29 30 cp 0;defs 4;subar 4 tpa 1454 1454 1505 1505 51 51 --------------------------------------------------------------------------- # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C05 C10 C11 C12 C13 S01 Total=9 # BEAM-1:175 :: C00 C01 C02 C05 C10 C11 C12 C13 S01 Total=9 # BEAM-2:130 :: C03 C04 C06 C08 C09 C14 E02 E04 E05 E06 S02 S03 S04 S06 W02 W03 W04 Total=17 # BEAM-2:175 :: C03 C04 C06 C08 C09 C14 E02 E04 E05 E06 S02 S03 S04 S06 W02 W03 W04 Total=17 --------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-3:130 :: C00 C01 C02 C05 C10 C11 C12 C13 S01 Total=9 # BEAM-3:175 :: C00 C01 C02 C05 C10 C11 C12 C13 S01 Total=9 # BEAM-4:130 :: C03 C04 C06 C08 C09 C14 E02 E04 E05 E06 S02 S03 S04 S06 W02 W03 W04 W05 Total=18 # BEAM-4:175 :: C03 C04 C06 C08 C09 C14 E02 E04 E05 E06 S02 S03 S04 S06 W02 W03 W04 W05 Total=18 --------------------------------------------------------------------------- 18:35 : Started settings. 18:48 : Power glitch, so restarted settings. 19:25 : Power equalized on 1154-350 for GSB @ 300 counts and for GWB @ 150 counts. 19:36 : Phasing done on 1154-350. 19:40 : '/odisk/gtac/cmd/jroy/34_048_4jun.cmd' command file started. 21:00 : Stopped command file and observing session over.