GTAC Observation Log 1. Date : 26/06/2010 2. Observation Sr. No. : 4930 3. Observer : Sandeep Sirothia 4. Observer's Email : sirothia@ncra.tifr.res.in 5. Project Name : Extra Galactic survey @ 150MHz 6. Project Code : 18_031 7. Operator(s) : Deepak, Rupsingh, Santaji, 8. Command File : /odisk/gtac/cmd/sirothia/18_031_20100626a.cmd, /odisk/gtac/cmd/sirothia/18_031_20100626b.cmd 9. LTA File : /rawdata/26jun/18_031_26jun2010.lta, /rawdata1/26jun/18_031_26jun2010.ltb 10. GSB File : /gsbifrdata1/26jun/18_031_26jun2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/18_031.FLAGS.54 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) : C11 : Servo off. C08 : Fringe fluctuation(GHB). W04 : ABC timeout. 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 16:45 - 06:57 23. ONLINE Machine : Shivneri 24. Correlator Mode : UsbPolar 25. Comments (During Observations) : # 2 sec files /rawdata/26jun/18_031_26jun2010_2s.lta /rawdata1/26jun/18_031_26jun2010_2s.ltb /gsbifrdata1/26jun/18_031_26jun2010_gsb_2s.lta -------------------------------------------- 16:38 : Started scan on 3C286. 16:58 : Stopped scan. 17:12 : Started command file /odisk/gtac/cmd/sirothia/18_031_20100626a.cmd 22:49 : E03 servo time out. 23:25 : changed the command file /odisk/gtac/cmd/sirothia/18_031_20100626b.cmd 06:05 : MSEB power failure. 06:10 : MSEB powe resumed. 06:25 : Scan started on J0218+4232. 06:40 : Scan started on 3c48. 06:57 : stopped the scan and observation session over.