GTAC Observation Log 1. Date : 29/04/2015 2. Observation Sr. No. : 7748 3. Observer : Jayaram Narayanan Chengalur, Simon Pustilnik 4. Observer's Email : chengalur@ncra.tifr.res.in, sap@sao.ru 5. Project Name : HI observations of a complete sample of gas-rich void galaxies 6. Project Code : 28_048 7. Operator(s) : Navnath, Rupsing 8. Command File : /odisk/gtac/cmd/chengalu/j0929\+2502.cmd 9. LTA File : /gsbifrdata/28apr/28_048_28apr2015_8s.lta 10. LogFlag File : /odisk/online1/logflags/28_048.FLAGS.2,/odisk/online1/logflags/28_048.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1402.1735 MHz ,RF2 : 1402.1735 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1340 MHz, ILO2 : 1340MHz , IVLO1 : 62.1735 MHz, IVLO2 : 62.1735 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 Host : gsbm1 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 # 2 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 137.8265 28. LO5 -2 : 167.1735 29. Frequency Parameters (TPA) : 1402.1735 1402.1735 1340 1340 62.1735 62.1735 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) : W03 : PC104 work. W02 : Applying AZ Brakes. C11 : Low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 28 Apr 2015 17:00:00 - 29 Apr 2015 01:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 17:00 : Started setup. 17:16 : Started scan on flux cal for 10min. 17:39 : Started cmd file "/odisk/gtac/cmd/chengalu/j0929+2502.cmd" --------------------------------------------------------------------------- 19:50 : W02 started working. -------------------------------------------------------------------------- 00:42 : Stopped command file. 00:46 : Started scan on 3C286. 01:00 : Stooped scan and observation session over.