GTAC Observation Log 1. Date : 27/12/2016 2. Observation Sr. No. : 9096 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) : Shilpa 8. Command File : /odisk/gtac/cmd/jroy/31_034_27dec.cmd 9. LTA File : /gsbifrdata1/27dec/31_034_27dec2016.lta 10. LogFlag File : /odisk/online1/logflags/31_034.FLAGS.4 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_lenyadri 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 : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :25 32. Name of Non-Working Antennas (with reason for each) : C04 : Feed problem. C08 : Frequently getting reset. E06 : Servo problem. S06 : 130 pol no fringe. W06 : Frequently applying azimuth brakes. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Dec 2016 07:12:00 - 27 Dec 2016 09:47:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :24 37. Comments (During Observations) : 07:12 : Started settings. 07:15 : Feed rotated to 610MHz. 07:47 : Power equalized on 1154-350 @ 300 counts. 07:54 : Phasing done on 1154-350. 07:55 : '/odisk/gtac/cmd/jroy/31_034_27dec.cmd' command file started. 08:47 : C12 frequently applying elevation brakes, so removed from GAC. 09:47 : Stopped command file and observing session over.