GTAC Observation Log 1. Date : 04/06/2017 2. Observation Sr. No. : 9459 3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur, Sanjay S. Kudale, Tyrel J. Johnson 4. Observer's Email : jroy@ncra.tifr.res.in, paul.ray@nrl.navy.mil, bhaswati.bhattacharyya78@gmail.com, Ben.Stappers@manchester.ac.uk, chengalur@ncra.tifr.res.in, ksanjay@gmrt.ncra.tifr.res.in, tyrel.j.johnson@gmail.com 5. Project Name : Long-term timing follow-up and multi-frequency eclipse study for the third transitional redback millisecond pulsar J1227-4853 6. Project Code : 32_033 7. Operator(s) : Deepak, Nilesh, Shilpa 8. Command File : /odisk/gtac/cmd/jroy/32_033_4jun.cmd 9. LTA File : /gwbifrdata2/04jun/32_033_04jun2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/32_033.FLAGS.3 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 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1_shivneri 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 : OFF 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :25 32. Name of Non-Working Antennas (with reason for each) : C14 : Structural repair. E05 : No fringe. S02 : Servo problem. W02 : Chksum error at gab. W04 : No fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Jun 2017 19:45:00 - 04 Jun 2017 21:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :25 37. Comments (During Observations) : # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 S01 S03 S04 W01 W03 Total=21 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 S01 S03 S04 W01 W03 Total=21 # BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 S01 S03 S04 W01 W03 Total=21 # BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 S01 S03 S04 W01 W03 Total=21 --------------------------------------------------------------------------- ------------GWB Setting---------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_RF4 : 1460 1460 GCODE4 : 32_033 GPU_BEAM_1 : PA GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 4 GPU_FILRFI : RFI Filterring OFF --------------------------------------------------------------------------- 19:45 : Started settings. 19:55 : Power equalized on 1154-350 @ 150 counts. 20:02 : Phasing done on 1154-350. 20:04 : '/odisk/gtac/cmd/jroy/32_033_4jun.cmd' command file started. 20:33 : C06 removed from GAC. 21:00 : Stopped command file and observing session over.