GTAC Observation Log 1. Date : 13/04/2010 2. Observation Sr. No. : 4812 3. Observer : Sandeep Sirothia, Nimisha Kantharia 4. Observer's Email : sirothia@ncra.tifr.res.in,ngk@ncra.tifr.res.in 5. Project Name : Extra Galactic survey 6. Project Code : 18_031 7. Operator(s) : Navanath, Nilesh, Sachin, Santaji, 8. Command File : /odisk/gtac/cmd/sirothia/18_031_20100413a.gsb, /odisk/gtac/cmd/sirothia/18_031_20100413b.gsb, 9. LTA File : /rawdata/13apr/18_031_13apr2010.lta, /rawdata1/13apr/18_031_13apr2010.ltb 10. GSB File : /gsbifrdata/13apr/18_031_13apr2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/18_031.FLAGS.6 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) :22 20. Name of Non-Working Antennas (with reason for each) : C01 - OFF C02 - MCM 5 time out. C09 - ABC Time out C11 : off mode E05 : GHB NO fringe, GSB fringe ok. S03 - OFC cut S04 - OFC cut S06 - OFC cut 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 18:00 - 08:00 23. ONLINE Machine : Shivneri 24. Correlator Mode : UsbPolar 25. Comments (During Observations) : 2s GHB lta files /rawdata/13apr/18_031_13apr2010_2s.lta, /rawdata1/13apr/18_031_13apr2010_2s.ltb ---------------------------------------------- 2s GSB lta file /gsbifrdata/13apr/18_031_13apr2010_gsb_2s.lta ---------------------------------------------- 17:30 : setup started. 17:56 : scan started on 3c147. 18:14 : scan stared on J0218+4232 18:40 : Started command file. 19:13 : E04 released for observation. 19:16 : C09 Started working. 00:17 : Stopped command file. 00:24 : Started scan on 3c286 for ~15min. 00:49 : Started next command file. 07:26 : Stopped the command file. 07:40 : Started scan on 3c48. 08:00 : Stopped the scan & observation.