GTAC Observation Log 1. Date : 17/07/2010 2. Observation Sr. No. : 4967 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 : Extra Galactic Survey @ 150 MHz 6. Project Code : 18_031 7. Operator(s) : Deepak, Rupsingh, Santaji, 8. Command File : /odisk/gtac/cmd/sirothia/18_031_20100717a.cmd, /odisk/gtac/cmd/sirothia/18_031_20100717b.cmd 9. LTA File : /rawdata/17jul/18_031_17jul2010.lta, /rawdata1/17jul/18_031_17jul2010.ltb 10. GSB File : /gsbifrdata/17jul/18_031_17jul2010_gsb.lta, 11. LogFlag File : /odisk/online1/logflags/18_031.FLAGS.69 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) :27 20. Name of Non-Working Antennas (with reason for each) : E03 - Parked. E04 - Strong RFI. C03 - No fringe[GHB+GSB] 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 17:30 - 07:05 23. ONLINE Machine : Shivneri 24. Correlator Mode : UsbPolar 25. Comments (During Observations) : # 2sec files /rawdata/17jul/18_031_17jul2010_2s.lta /rawdata1/17jul/18_031_17jul2010_2s.ltb /gsbifrdata/17jul/18_031_17jul2010_gsb_2s.lta ---------------------------------------------------- 17:25 : Started scan on 3C286. 18:10 : Started command file /odisk/gtac/cmd/sirothia/18_031_20100717a.cmd 19:10 : C13 servo problem. 20:53 : Started command file /odisk/gtac/cmd/sirothia/18_031_20100717b.cmd 06:00 : Stopped command file. 06:31 : Started scan on J0218+4232. 06:42 : Stopped scan. 06:45 : Started scan on 3C48. 07:05 : Stopped scan and observing session over.