GTAC Observation Log 1. Date : 30/08/2015 2. Observation Sr. No. : 8029 3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur 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 5. Project Name : Long-term radio timing follow-up of PSR J1227-4853, a redback pulsar in a LMXB-MSP transitioning system 6. Project Code : 28_045 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd/jroy/28_045_30aug.1.cmd 9. LTA File : /gsbifrdata1/30aug/28_045_30aug2015_2s.lta 10. LogFlag File : /odisk/online1/logflags/28_045.FLAGS.19 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 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 :29 32. Name of Non-Working Antennas (with reason for each) : S02 : Taken for BLDC 33. Note for Backup : 34. Start and End Time of Obs.(IST): 30 Aug 2015 12:00:00 - 30 Aug 2015 13:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :25 37. Comments (During Observations) : 12:00 : Started set up. 12:15 : Power equalized and phasing done on 1154-350. 12:25 : South arm power failure. Hence remove from GAC. 12:30 : Started command file. '/odisk/gtac/cmd/jroy/28_045_30aug.1.cmd' 01:00 : Stooped command file and observation session is over.