GTAC Observation Log 1. Date : 23/12/2012 2. Observation Sr. No. : 6286 3. Observer : Lokesh Dewangan 4. Observer's Email : loku007@gmail.com,ojha@tifr.res.in,kshitiz@tifr.res.in 5. Project Name : Ionized gas on small scales in three Galactic mid-infrared bubbles 6. Project Code : 23_054 7. Operator(s) : Deepak, Navanath, Sachin, Shilpa, Surender 8. Command File : /odisk/gtac/cmd/23_054/obs.cmd 9. LTA File : /gsbifrdata/23dec/23_054_23dec2012.lta 10. LogFlag File : /odisk/online1/logflags/23_054.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1261 MHz ,RF2 : 1261 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1210 MHz, ILO2 : 1210 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Mode : RealTime 15. GSB LTA : 8 16. GAIN EQ : ON 17. Stokes : Total_Intensity 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 32 MHz 21. Maximum Channels : 512 22. IFBW (MHz) : LO5 (KHz) : 32:149000-156000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 1261 1261 1210 1210 51 51. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :28 27. Name of Non-Working Antennas (with reason for each) : S01 : Taken for BLDC. W05 : Taken for MECH. Maintenance. C09 : 130pol low fringe. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 07:35 - 18:24 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 07:35 : Started settings. 07:51 : Started scan on 3C286. 08:11 : Stopped scan. 08:27 : '/odisk/gtac/cmd/23_054/obs.cmd' command file started. 12:14 : W-arm power failed. 12:53 : W-arm started working. 16:59 : Stopped command file (due to source below Horizon.) 17:00 : Started scan on 1911-201. 17:31 : Stopped scan. 17:40 : Started scan on 3C48. 18:24: Stopped scan & Observing session is over.