GTAC Observation Log 1. Date : 7/12/2013 2. Observation Sr. No. : 6829 3. Observer : Preshanth Jagannathan,Russ Taylor,Sanjay Bhatnagar,Rob Ivison,Jeroen Maarten Stil,David Alan Green,Wiphu Rujopakarn 4. Observer's Email : preshanth@ras.ucalgary.ca,russ@ras.ucalgary.ca,sbhatnag@aoc.nrao.edu,rji@roe.ac.uk,stil@ras.ucalgary.ca,dag@mrao.cam.ac.uk,wiphu@as.arizona.edu 5. Project Name : Radio Polarimetry of the UDS deep field at 610 MHz 6. Project Code : 25_071 7. Operator(s) : Deepak,Nilesh,Pramod, 8. Command File : /odisk/gtac/cmd/25_071/obs.cmd 9. LTA File : /gsbifrdata/07dec/25_071_07dec2013.lta,/gsbifrdata/07dec/25_071_07dec2013.lta.1, 10. LogFlag File : /odisk/online1/logflags/25_071.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 : 540 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. GSB CTRL : ONLINE 17. GSB Fstop : ON 18. GAIN EQ : ON 19. Stokes : FullStokes 20. Beam - 1 : OFF 21. Beam - 2 : OFF 22. ACQ BW : 33.33 MHz 23. Final BW : 33.333333 MHz; Step # 0 24. Maximum Channels : 256 25. Channel Numbers : 0:255:1 26. LO5 -1 : 149.00 27. LO5 -2 : 156.00 28. Frequency Parameters (TPA) : 591 591 540 540 51 51. 29. Integration Time : 16.106112 Sec. 30. No of Antennas Working(Fringing) at the begining :26 31. Name of Non-Working Antennas (with reason for each) : C14 : No 610MHz feed W02,W04 : Painting. C02 : No fringe at 175pole. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 15:11 - 03:00 34. ONLINE Machine : Lenyadri 35. No of Antennas Working(Fringing) at the end :27 36. Comments (During Observations) : 15:11 : Started scan on 3C48. 15:26 : Stopped scan and started command file. '/odisk/gtac/cmd/25_071/obs.cmd' 18:20 : W02 and W04 released from painting and taken for observation. 21:57 : Stopped command file duo to oper2 machine hanged. 21:57 - 22:10 : Time required to start oper2 machine. Halt the GSB . 22:20 : Started scan 3C138 for 15 min. and restarted command file. 22:30 : C12 No Fringe. 01:47 : Stopped command file. 01:50 : Started scan on 3c286 for ~15min. 02:08 : Started scan on target source (UDS). 02:25 : Stopped scan. 02:28 : Started scan on phase cal for ~8min. 02:39 : C01, C02, C08 and C12 servo problem. 02:40 : started scan on 3c147 for ~15min. 02:50 : C01, C02, C08 and C12 started working. 03:00 : Stopped scan and closed obseravtion session.