GTAC Observation Log 1. Date : 10/8/2013 2. Observation Sr. No. : 6648 3. Observer : Neeraj Gupta,Raghunathan Srianand,Patrick Petitjean,Pasquier Noterdaeme,hadi Rahmani 4. Observer's Email : ngupta@iucaa.ernet.in,anand@iucaa.ernet.in,ppetitje@iap.fr,noterdae@iap.fr,hadi@iucaa.ernet.in 5. Project Name : HI 21-cm absorption follow-up of DLAs from SDSS BOSS 6. Project Code : 24_025 7. Operator(s) : Navanath,Sachin, 8. Command File : /odisk/gtac/cmd/neeraj/bdla0038.cmd 9. LTA File : /gsbifrdata/10aug/24_025_10aug2013_16s.lta, 10. LogFlag File : /odisk/online1/logflags/24_025.FLAGS.9, ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 307.359 MHz ,RF2 : 307.359 MHz, SA1 : 0 dB, SA2 : dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 240 MHz, ILO2 : 240 MHz , IVLO1 : 67.359 MHz, IVLO2 : 67.359 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 6 MHz,ON, IF-CH2 : 4+12 dB, 6 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 : 1.04 MHz; Step # 2 24. Maximum Channels : 512 25. Channel Numbers : 0:511:1 26. LO5 -1 : 132.64 27. LO5 -2 : 172.36 28. Frequency Parameters (TPA) : 307.359 307.359 240 240 67.359 67.359. 29. Integration Time : 16.106112 Sec. 30. No of Antennas Working(Fringing) :29 31. Name of Non-Working Antennas (with reason for each) : E05 : BLDC Work. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 23:00 - 06:00 34. ONLINE Machine : Shivneri 35. Comments (During Observations) : 22:30: Started setup. 23:12 : Started scan on 3C468.1 for 10 min. 23:25 : Started command file. 00:38 : C03 ABC time out. 01:30 : Stopped command file and started scan on 3C48. 01:47 : Stopped scan on 3C48 and restarted command file. 05:44 : Stopped command file and started scan on 3C48 for 10 mins. 07:00 : Observation stopped.