GTAC Observation Log 1. Date : 07/02/2017 2. Observation Sr. No. : 9185 3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur, Sanjay S. Kudale, Tyrel J. Johnson 4. Observer's Email : jayanta.roy@manchester.ac.uk, paul.ray@nrl.navy.mil, bhaswati.bhattacharyya@manchester.ac.uk, 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 radio timing follow-up of third transitional redback millisecond pulsar J1227-4853 6. Project Code : 31_034 7. Operator(s) : Sachin 8. Command File : /odisk/gtac/cmd/jroy/31_034_7feb.cmd 9. LTA File : /gsbifrdata1/07feb/31_034_07feb17_2s.lta 10. LogFlag File : /odisk/online1/logflags/31_034.FLAGS.9 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 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 32 MHz,OFF 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 : Full_Stokes 21. Beam - 1 : OFF 22. Beam - 2 : OFF 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) : 591 591 540 540 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 07 Feb 2017 01:00:00 - 07 Feb 2017 07:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : GAC beam-1 All antennas. GAC beam-2 Upto 3rd arm antennas. 01:22:21 : Started scan on 1459+716 for ~ 0.335544 min. 01:25:02 : Started scan on 1459+716 for ~ 1.20796 min. 01:28:21 : Started scan on J1544+4937 for ~ 15.3008 min. 01:53:10 : Started scan on 1154-350 for ~ 0.872414 min. 01:54:10 : Started scan on 1154-350 for ~ 2.01326 min. 01:57:20 : Started scan on J1227-4853 for ~ 60.2973 min. 03:00 : Stopped command file and closed observation session.