GTAC Observation Log 1. Date : 22/01/2018 2. Observation Sr. No. : 10042 3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur, Sanjay S. Kudale, Tyrel J. Johnson 4. Observer's Email : jroy@ncra.tifr.res.in, paul.ray@nrl.navy.mil, bhaswati@ncra.tifr.res.in, 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 timing follow-up for the third transitional redback millisecond pulsar J1227-4853 6. Project Code : 33_058 7. Operator(s) : Navnath 8. Command File : /odisk/gtac/cmd/jroy/33_058_22jan.cmd 9. LTA File : /gsbifrdata1/22jan/33_058_22jan2018_gsb.lta, /gwbifrdata1/22jan/33_058_22jan2018_gwb.lta, /gwbifrdata1/22jan/33_058_22jan2018_2s_gwb.lta 10. LogFlag File : 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 : 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 :28 32. Name of Non-Working Antennas (with reason for each) : W01 : : Frequent ABC time out and ABC Reset. S01 : Very low fringe in GSB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 22 Jan 2018 04:30:00 - 22 Jan 2018 06:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 04:30 : Started setup. 04:40 : Started power eq. 04:50:20 : Started scan on 1154-350 for ~ 1.71127 min. 04:52:11 : Started scan on 1154-350 for ~ 3.0199 min. 04:55 : Phasing done. 04:57 : Started cmd file. /odisk/gtac/cmd/jroy/33_058_22jan.cmd 05:00:00 : Started scan on J1227-4853 for ~ 60.3195 min. 06:10:00 : Stopped scan and observing session over.