GTAC Observation Log 1. Date : 16/07/2010 2. Observation Sr. No. : 4965 3. Observer : Sandeep Sirothia 4. Observer's Email : sirothia@ncra.tifr.res.in,ishwar@ncra.tifr.res.in,ngk@ncra.tifr.res.in 5. Project Name : The GMRT extra-galactic sky survey at 150 MHz. 6. Project Code : 18_031 7. Operator(s) : Amruta, Deepak, Rupsingh, Shilpa 8. Command File : /odisk/gtac/cmd/sirothia/18_031_20100716a.cmd, /odisk/gtac/cmd/sirothia/18_031_20100716b.cmd 9. LTA File : /rawdata/16jul/18_031_16jul2010.lta, /rawdata1/16jul/18_031_16jul2010.ltb 10. GSB File : /gsbifrdata/16jul/18_031_16jul2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/18_031.FLAGS.68 ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 14 dB, SA2 : 14 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 218 MHz, ILO2 : 218 MHz, IVLO1 : 62 MHz, IVLO2 : 62 MHz 14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 MHz,ON 15. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 156 156 218 218 62 62 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :28 20. Name of Non-Working Antennas (with reason for each) : C01 : Servo problem. C03 : No fringe. 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 16:45 - 07:33 23. ONLINE Machine : Shivneri 24. Correlator Mode : UsbPolar 25. Comments (During Observations) : 2s Data Files : /rawdata/16jul/18_031_16jul2010_2s.lta, /rawdata1/16jul/18_031_16jul2010_2s.ltb, /gsbifrdata/16jul/18_031_16jul2010_gsb_2s.lta --------------------------------------------------- 17:11 : Started scan on 3C286. 17:27 : Stopped scan. 17:28 : Started command file : /odisk/gtac/cmd/sirothia/18_031_20100716a.cmd 20:16 : C13 servo problem. 22:52 : Stopped command file. 23:04 : '/odisk/gtac/cmd/sirothia/18_031_20100716b.cmd' command file started. 06:56 : Stopped command file. 07:01 : Started scan on J0218+4232. 07:13 : Stopped scan. 07:15 : Started scan on 3C48. 07:33 : Stopped scan and observing session over.