GTAC Observation Log 1. Date : 03/07/2012 2. Observation Sr. No. : 6017 3. Observer : Surajit Paul, Prakash Sarkar 4. Observer's Email : surajit@iucaa.ernet.in;sarkar@iucaa.ernet.in 5. Project Name : GMRT mapping of galaxy cluster merger event at redshift z=0.87 6. Project Code : 12DT019 7. Operator(s) : Manisha, Nilesh, Santaji, 8. Command File : /odisk/gtac/cmd/surajit/sp03jul12.cmd 9. LTA File : /gsbifrdata/03jul/12dt019_03jul2012.lta, /gsbifrdata/03jul/12dt019_03jul2012_2s.lta 10. LogFlag File : /odisk/online1/logflags/12DT019.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320 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 : 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) : 1371 1371 1320 1320 51 51. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :30 27. Name of Non-Working Antennas (with reason for each) : W02 : 130 pol Low fringe. S01 : low fringe. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 04:00 - 09:00 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : 04:00 : setup started. 04:20 : scan started on 3c48. 04:54 : command file started. 05:02 : C13 stopped the working ( electrical problem) 05:33 : C13 started working. 05:40 : C11 MCM-5 time out. ( C11 not working ). 06:08 : C13 not working. 06:55 : C13 started working. 08:33 : Stopped command file. 08:34 : Started scan on 0048-427. 08:44 : Started scan on 3c48. 09:00 : Stopped observation session.