GTAC Observation Log 1. Date : 15/05/2017 2. Observation Sr. No. : 9394 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.bhattacharyya78@gmail.com, 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 and multi-frequency eclipse study for the third transitional redback millisecond pulsar J1227-4853 6. Project Code : 32_033 7. Operator(s) : Deepak, Sachin 8. Command File : /odisk/gtac/cmd/jroy/32_033_15may.cmd 9. LTA File : /gsbifrdata1/15may/32_033_15may17.lta, /gwbifrdata2/15may/32_033_15may17.lta 10. LogFlag File : /odisk/online1/logflags/32_033.FLAGS.2 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_shivneri 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 : OFF 22. Beam - 2 : OFF 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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C14 : Taken for maintenance. E05 : No fringe in GSB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 May 2017 20:00:00 - 15 May 2017 21:01:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : GWB setup: GAB lo = 550 BW = 200 channels = 2k beam int = 8 lta = 4 PA-PA power eq = 150 counts. GSB setup: Trial BW 32 MHz channels = 512 IA_PA power eq = 300 counts. # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C02 C03 C04 C05 C06 C09 C10 C11 C12 C13 E02 E03 S02 S03 W01 Total=16 # BEAM-1:175 :: C00 C02 C03 C04 C05 C06 C09 C10 C11 C12 C13 E02 E03 S02 S03 W01 Total=16 # BEAM-2:130 :: C00 C02 C03 C04 C05 C06 C09 C10 C11 C12 C13 E02 E03 S02 S03 W01 Total=16 # BEAM-2:175 :: C00 C02 C03 C04 C05 C06 C09 C10 C11 C12 C13 E02 E03 S02 S03 W01 Total=16 # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-1:175 :: C00 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-2:130 :: C00 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 # BEAM-2:175 :: C00 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 20:16:22 : Started command file .scan on 1154-350 for ~ 0.134218 min. 20:20:56 : Started scan on 1154-350 for ~ 2.01326 min. 20:24:02 : Started scan on J1227-4853 for ~ 36.5072 min. 21:00 : Stopped command file and closed observation session.