GTAC Observation Log 1. Date : 13/7/2012 2. Observation Sr. No. : 6035 3. Observer : S. Roy 4. Observer's Email : roy@ncra.tifr.res.in 5. Project Name : Polarimetric Studies of the Sgr A* field: Black holes and Pulsars 6. Project Code : 22_054 7. Operator(s) : Deepak, Rupsingh, Sachin, 8. Command File : /odisk/gtac/cmd/roy/22_054.13july12.cmd 9. LTA File : /gsbifrdata/13jul/22_054_13jul2012.lta 10. LogFlag File : /odisk/online1/logflags/22_054.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 14 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 32 MHz,OFF GSB SETTINGS : 14. GSB Mode : RealTime 15. GSB LTA : 8 16. GAIN EQ : OFF 17. Stokes : Full_Polar 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) : 591 591 540 540 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) : C02 :- PC104 work. C11 :- Low fringe(CSIRO feed). C14 :- BLDC work. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 19:00 - 03:00 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : 19:10 : Power eq on 3C286 @100 counts in total intensity mode. 19:20 : Power eq. done. 19:21 : Restarted das chain in Full polar mode. 19:23 : Started scan on 3C286 for 15min. 19:39 : Stopped scan. 19:44 : Started scan on 1609+266. 19:57 : Stopped scan. 20:08 : Started command file. 02:35 : Stopped command file. 02:41 : Started scan on 3C48. 03:00 : Stopped scan on 3C48 and closed observation session.