GTAC Observation Log 1. Date : 08/3/2012 2. Observation Sr. No. : 5871 3. Observer : Somak Raychaudhury 4. Observer's Email : somak@star.sr.bham.ac.uk,kkolok@star.sr.bham.ac.uk 5. Project Name : Falling into the Virgo Cluster: Stripping, Shocks and Fuelling AGN in M49 (NGC4472) 6. Project Code : 21_027 7. Operator(s) : Deepak, Nilesh, Shilpa 8. Command File : /odisk/gtac/cmd/somak/21_027/obs.cmd 9. LTA File : /gsbifrdata/08mar/21_027_08mar2012.lta, 10. LogFlag File : /odisk/online1/logflags/21_027.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 629 MHz ,RF2 : 253 MHz, SA1 : 0 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 680 MHz, ILO2 : 304 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 10+12 dB, 32 MHz,ON, IF-CH2 : 10+12 dB, 16 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 : 256 22. IFBW (MHz) : LO5 (KHz) : 32:149000-156000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 629 253 680 304 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) : S04 - Not working. C08 - 175(LL) fringe fluctuations. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 21:40 - 07:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 21:40 : Started settings. 21:48 : Started scan on 3C286 for ~15min. 22:05 : Command file started. 02:39 : Stopped command file. 02:45 : Started scan on 3C286. 02:55 : Stopped scan. 03:01 : Restarted command file. 06:29 : Stopped command file. 06:31 : Started scan on 1227+365. 06:40 : Stopped scan. 06:42 : Started scan on 3C286. 07:00 : Stopped scan and observing session over.