GTAC Observation Log 1. Date : 04/08/2016 2. Observation Sr. No. : 8793 3. Observer : Rajeshwari Dutta, Neeraj Gupta, Raghunathan Srianand, Ravi Joshi 4. Observer's Email : rdutta@iucaa.ernet.in, ngupta@iucaa.ernet.in, anand@iucaa.ernet.in, physistravi@gmail.com 5. Project Name : HI 21-cm absorption from strong MgII systems 6. Project Code : 30_032 7. Operator(s) : Pramod, Sachin 8. Command File : /odisk/gtac/cmd/30_032/04aug16/obs.cmd 9. LTA File : /gsbifrdata/04aug/30_032_04aug2016.lta, /gwbifrdata1/04aug/30_032_04aug2016_1120lo.lta.1, /gwbifrdata1/04aug/30_032_04aug2016_1120lo.lta 10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.2066 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1007.6541 MHz ,RF2 : 1007.6541 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1070 MHz, ILO2 : 1070MHz , IVLO1 : 62.3459 MHz, IVLO2 : 62.3459 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 16.666666 MHz 24. Final BW : 4 MHz; Step # 1 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 137.6541 28. LO5 -2 : 167.3459 29. Frequency Parameters (TPA) : 1007.6541 1007.6541 1070 1070 62.3459 62.3459 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C01 : 175 pol no fringe C10 : 130 pol no fringe E03 : No fringe S02 : Servo problem 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Aug 2016 18:00:00 - 04 Aug 2016 22:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 18:00 : Started set up. 18:12 : Started scan on 3C286. 18:22 : Stopped scan and started command file. '/odisk/gtac/cmd/30_032/04aug16/obs.cmd' 19:26 : S02 started working. 21:44 : Stopped command file. 21:46 : Started scan on 3C286. 22:00 : Stopped scan and observation session is over.