GTAC Observation Log 1. Date : 02/01/2010 2. Observation Sr. No. : 4685 3. Observer : Yogesh Chandola, Sandeep Sirothia 4. Observer's Email : chandola@ncra.tifr.res.in,sirothia@ncra.tifr.res.in 5. Project Name : J1026+4542 6. Project Code : 17_082 7. Operator(s) : Nilesh, Rupsingh, Shilpa 8. Command File : /odisk/gtac/cmd/sirothia/17_082/02jan10a.cmd, /odisk/gtac/cmd/sirothia/17_082/02jan10b.cmd 9. LTA File : /rawdata/2jan/17_082_2jan2010a.lta, /rawdata1/2jan/17_082_2jan2010a.ltb, /rawdata/2jan/17_082_2jan2010b.lta, /rawdata1/2jan/17_082_2jan2010b.ltb 10. LogFlag File : /odisk/online1/logflags/17_082.FLAGS.9 ANTENNA SETTINGS : 11. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1230 MHz ,RF2 : 1230 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1160 MHz, ILO2 : 1160 MHz, IVLO1 : 70 MHz, IVLO2 : 70 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 MHz,ON 14. BB BW(KHz) & BB ALC : 4000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 1230 1230 1160 1160 70 70 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :27 20. Name of Non-Working Antennas (with reason for each) : E05 : No fringe in USB W06 : fringe fluctuation(GHB). S01 : 175 low fringe. C00 : ABC timeout. 21. Note for Backup : -- 22. Start and End Time of Obs.(IST): 04:00 - 14:00 23. ONLINE Machine : Lenyadri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : **************************************************************************** GSB data files : /gsbifrdata/2jan/17_082_2jan2010a_gsb_16s.lta, /gsbifrdata/2jan/17_082_2jan2010a_gsb_2s.lta, /gsbifrdata/2jan/17_082_2jan2010b_gsb_16s.lta, /gsbifrdata/2jan/17_082_2jan2010b_gsb_2s.lta **************************************************************************** GHB 2s data files : /rawdata/2jan/17_082_2jan2010a_2s.lta, /rawdata1/2jan/17_082_2jan2010a_2s.ltb, /rawdata/2jan/17_082_2jan2010b_2s.lta, /rawdata1/2jan/17_082_2jan2010b_2s.ltb **************************************************************************** 04:09 : Started scan on 3C147 for 15mins. 04:25 : Started command file /odisk/gtac/cmd/sirothia/17_082/02jan10a.cmd 08:35 : Stopped command file. 08:37 : Started scan on 1219+484. 08:42 : Stopped scan. 08:41 : E05 taken for painting. 08:45 : Started scan on 3C286. 09:00 : Stopped scan. **************************************************************************** 09:01 : Changed settings. tpa 1290.50 1290.50 1220 1220 70.50 70.50 W05 : Low fringe. 09:12 : Started scan on 3C286. 09:15 : C13 taken for painting. 09:29 : Stopped scan. 09:35 : '/odisk/gtac/cmd/sirothia/17_082/02jan10b.cmd' command file started. 11:36 : Stopped command file. 11:38 : Started scan on 3C286. 11:52 : Stopped scan. 11:58 : Restarted command file. 13:45 : Stopped command file. 13:48 : Started scan on 3C468.1. 14:00 : Stopped scan and observing session over.