GTAC Observation Log 1. Date : 22/02/2016 2. Observation Sr. No. : 8432 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) : Nilesh 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata1/22feb/29_024_22feb2016.lta 10. LogFlag File : /odisk/online1/logflags/29_024.FLAGS.13 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+14 dB, 32 MHz,OFF, IF-CH2 : 24+14 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 : ON 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 :26 32. Name of Non-Working Antennas (with reason for each) : C02 : MCM 5 time out. C08 : BLDC installation. C12 : No Fringe. E05 : CST Painting. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 22 Feb 2016 03:10:00 - 22 Feb 2016 05:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 03:12:20 : Started settings. 03:22:00 : Started phasing. 03:26:43 : Started scan on 1526-138 for ~ 2.81857 min. 03:30:39 : Started scan on 1526-138 for ~ 1.30862 min. 03:33:33 : Started scan on J1646-2142 for ~ 45.2984 min. 04:20:35 : Started scan on J1828+0625 for ~ 45.2984 min. 05:06:00 : Stopped observation.