GTAC Observation Log 1. Date : 31/8/2012 2. Observation Sr. No. : 6132 3. Observer : Giulia Macario 4. Observer's Email : giulia.macario@oca.eu,hintema@nrao.edu 5. Project Name : %latex% Searching for Radio Halos in the \textit{MACS-Planck} X-ray luminous cluster sample (II) 6. Project Code : 22_021 7. Operator(s) : Deepak, Pramod, Rupsingh, Shilpa 8. Command File : /odisk/gtac/cmd/22_021/augsep/30aug12.cmd, /odisk/gtac/cmd/22_021/augsep/31aug12.cmd 9. LTA File : /gsbifrdata/31aug/22_021_31aug2012.lta, /gsbifrdata/31aug/22_021_31aug2012.lta.1 10. LogFlag File : /odisk/online1/logflags/22_021.FLAGS.4 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 : 255 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 : 256 22. IFBW (MHz) : LO5 (KHz) : 32:149000-156000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 306 306 255 255 51 51. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :29 27. Name of Non-Working Antennas (with reason for each) : W04 : Taken for maintenance. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 19:25 - 07:00 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : 19:27 : Started scan on 3C286. 19:42 : Stopped scan. 19:54 : Command file started '/odisk/gtac/cmd/22_021/augsep/30aug12.cmd' 19:55 : No fringe on phase cal due to scintillation. 21:25 : Stopped command file. 21:27 : Started scan 3C468.1. 21:47 : Stopped scan. 21:54 : Command file started '/odisk/gtac/cmd/22_021/augsep/31aug12.cmd' 03:43 : Scintillation vanishes. 06:25 : Stopped command file. 06:28 : Started scan on 3C48. 07:00 : Stopped scan and observing session over.