GTAC Observation Log 1. Date : 20/7/2012 2. Observation Sr. No. : 6047 3. Observer : Naveen Yadav, Sayan Chakraborty 4. Observer's Email : nyadav@tifr.res.in,sayan@tifr.res.in 5. Project Name : Swift J1644+57: A GMRT View of the Birth of a Relativistic Outflow from a Supermassive Black Hole 6. Project Code : 22_068 7. Operator(s) : Deepak, Rupsingh, Shilpa 8. Command File : /odisk/gtac/cmd/sayan/grb110328a/obs.cmd 9. LTA File : /gsbifrdata/20jul/22_068_20jul2012.lta 10. LogFlag File : /odisk/online1/logflags/22_068.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Mode : RealTime 15. GSB LTA : 8 16. GAIN EQ : ON 17. Stokes : Total_Intensity 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 32 MHz 21. Maximum Channels : 256 22. IFBW (MHz) : LO5 (KHz) : 32:149000-156000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 306 306 255 255 51 51. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :29 27. Name of Non-Working Antennas (with reason for each) : C14 : BLDC installation. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 18:41 - 02:05 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : 18:46 : Started scan on 3C286. 19:01 : Stopped scan. 19:05 : '/odisk/gtac/cmd/sayan/grb110328a/obs.cmd' command file started. 01:44 : W05 servo time out. 01:47 : Stopped command file. 01:52 : Started scan on 3C48. 02:05 : Stopped scan & observation session over.