GTAC Observation Log 1. Date : 04/11/2012 2. Observation Sr. No. : 6204 3. Observer : Ian Robert Stevens 4. Observer's Email : irs@star.sr.bham.ac.uk 5. Project Name : Low Frequency Radio Emission from Massive Stars 6. Project Code : 23_036 7. Operator(s) : Pramod, Sachin, Surender 8. Command File : /odisk/gtac/cmd/23_036/comm_f1/obs.cmd, /odisk/gtac/cmd/23_036/comm_f2/obs.cmd 9. LTA File : /gsbifrdata/04nov/23_036_04nov2012.lta, /gsbifrdata/04nov/23_036_04nov2012_1.lta 10. LogFlag File : /odisk/online1/logflags/23_036.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 629 MHz ,RF2 : 253 MHz, SA1 : 0 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 680 MHz, ILO2 : 304 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, 16 MHz,ON GSB SETTINGS : 14. GSB Mode : RealTime 15. GSB LTA : 8 16. GAIN EQ : ON 17. Stokes : Full_Polar 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) : 629 253 680 304 51 51. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :26 27. Name of Non-Working Antennas (with reason for each) : C00 : BLDC work. C12 : No fringe at 610MHz (130 Pol) C02 : No fringe at 235MHz (175 Pol) E02 : No fringe at 235MHz (175 Pol) 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 11:00 - 00:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 11:00 : Finished setup. 11:02:08 - 11:15:49 Recorded data on 3C286 11:09:00 - E-arm power failure. 11:35:00 - E-arm started working. 11:37:00 - Started command file '/odisk/gtac/cmd/23_036/comm_f1/obs.cmd' 15:30:00 - C12 130 pole started fringing. 18:43:00 - Stopped command file '/odisk/gtac/cmd/23_036/comm_f1/obs.cmd' 18:50:41 - Started scan on 3C48. 19:00:00 - Stopped scan on 3C48.(This flux cal.(3C48) is used as a common source for next command file) 19:04:59 - Started command file '/odisk/gtac/cmd/23_036/comm_f2/obs.cmd' 23:38:31 - Stopped command file. 23:44:00 - Started scan on 3C48. 23:55:00 - Stopped scan on 3C48 & observation session is over.