GTAC Observation Log 1. Date : 10/01/2017 2. Observation Sr. No. : 9125 3. Observer : Nirupam Roy 4. Observer's Email : roy.nirupam@gmail.com 5. Project Name : Low frequency study of neutral and ionized gas in the Orion`s Veil 6. Project Code : 31_106 7. Operator(s) : Deepak, Rupsing, Shilpa 8. Command File : /odisk/gtac/cmd/nirupam/31_106/obs_09jan2017.cmd 9. LTA File : /gsbifrdata1/09jan/31_106_09jan2017.lta 10. LogFlag File : /odisk/online1/logflags/31_106.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1_lenyadri 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 : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 09 Jan 2017 17:40:00 - 10 Jan 2017 04:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : GWB Settings : 200MHz Bandwidth, 16k Channels, 500 GABLO, Total Intensity GWB Connection : C00 C01 C06 C09 C10 C12 C14 E02 E03 E04 S01 S02 S06 W01 W02 W04 --------------------------------------------------------------------------- 17:40 : Started settings. 17:56 : Started scan on 3C147 for 15min. 18:13 : '/odisk/gtac/cmd/nirupam/31_106/obs_09jan2017.cmd' command file started. 18:54 : S01 servo problem. 19:38 : S01 started working. 21:35 : S01 servo problem. 22:21 : Stopped command file. 22:29 : Started scan on 3C147 for 10min. 22:48 : Changed the phase cal and restarted command file. 03:40 : Stopped command file. 03:47 : Started scan on 3c147. 04:00 : Stopped scan and observation session is over.