GTAC Observation Log 1. Date : 25/01/2016 2. Observation Sr. No. : 8356 3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur, Sanjay S. Kudale 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 5. Project Name : Long-term radio timing follow-up of a transitional redback millisecond pulsar J1227-4853 6. Project Code : 29_024 7. Operator(s) : Surender 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/25jan/29_024_25jan2015.lta 10. LogFlag File : /odisk/online1/logflags/29_024.FLAGS.9, /odisk/online1/logflags/29_024.FLAGS.11, /odisk/online1/logflags/29_024.FLAGS.10 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 : 33.333333 MHz; Step # 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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :24 32. Name of Non-Working Antennas (with reason for each) : C03 : BLDC. C12 : CST Painting. E06 : : No fringe. S03 : : MCM-5 time-out. W01 : : Servo problem. W06 : : 175 pol low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 25 Jan 2016 03:00:00 - 25 Jan 2016 05:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :24 37. Comments (During Observations) : 03:00 : Started set-up. 03:31 : Power eq and phasing done on 1154-350. 03:38 : Started scan on J1227-4859 for ~ 60 min. 04:38 : Stopped scan and observing session is over.