GTAC Observation Log 1. Date : 30/3/2014 2. Observation Sr. No. : 7047 3. Observer : Pasquier Noterdaeme,Neeraj Gupta,Rajeshwari Dutta,Raghunathan Srianand,Patrick Petitjean,hadi Rahmani 4. Observer's Email : noterdae@iap.fr,gupta@astron.nl,rdutta@iucaa.ernet.in,anand@iucaa.ernet.in,ppetitje@iap.fr,hadi@iucaa.ernet.in 5. Project Name : HI 21-cm absorption follow-up of DLAs from SDSS BOSS 6. Project Code : 25_058 7. Operator(s) : Pramod,Rupsingh, 8. Command File : /odisk/gtac/cmd/25_058/obs.cmd 9. LTA File : /gsbifrdata/30mar//25_058_30mar2014.lta, 10. LogFlag File : /odisk/online1/logflags/25_058.FLAGS.11, ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 303.4818 MHz ,RF2 : 303.4818 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 239 MHz, ILO2 : 239 MHz , IVLO1 : 64.4818 MHz, IVLO2 : 64.4818 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 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 : TotIntensity 20. Beam - 1 : OFF 21. Beam - 2 : OFF 22. ACQ BW : 16.67 MHz 23. Final BW : 2.08 MHz; Step # 2 24. Maximum Channels : 512 25. Channel Numbers : 0:511:1 26. LO5 -1 : 135.52 27. LO5 -2 : 169.48 28. Frequency Parameters (TPA) : 303.4818 303.4818 239 239 64.4818 64.4818. 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) : E06 and W04 : Very low fringe. E03 : 130 pole low fringe. C04 : Bad band shape for 130 pole. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 23:00 - 06:00 34. ONLINE Machine : Lenyadri 35. No of Antennas Working(Fringing) at the end :26 36. Comments (During Observations) : 22:45 : Started set up. 22:57 : Started scan on 3C286. Note : Scintillation appeared in the data. 23:17 : Stopped scan and started command file. '/odisk/gtac/cmd/25_058/obs.cmd' 03:09 : Stopped command file. 03:11 : Started scan on 3C286 for ~ 10.2005 min. and restarted command file. 05:45 : Stopped command file. 05:47 : Started scan on 3C286. 06:00 : Stopped scan and observation session is over.