GTAC Observation Log 1. Date : 13/08/2010 2. Observation Sr. No. : 5012 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, Manisha, Rupsingh, Shilpa 8. Command File : /odisk/gtac/cmd/sirothia/18_031_20100813.loop1.cmd, /odisk/gtac/cmd/sirothia/18_031_20100813.loop2to5.cmd 9. LTA File : /rawdata/13aug/18_031_13aug2010.lta, /rawdata1/13aug/18_031_13aug2010.ltb 10. GSB File : /gsbifrdata/13aug/18_031_13aug2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/18_031.FLAGS.81 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 : 10+12 dB, 16 MHz,ON, IF-CH2 : 10+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 : No Fringe. C10 : Maintenance. C04 : ABC time out. 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 18:45 - 08:00 23. ONLINE Machine : Shivneri 24. Correlator Mode : UsbPolar 25. Comments (During Observations) : ------* 2S data file *---------------------- /rawdata/13aug/18_031_13aug2010_2s.lta, /rawdata1/13aug/18_031_13aug2010_2s.ltb, /gsbifrdata/13aug/18_031_13aug2010_gsb_2s.lta -------------------------------------------- 18:58 : Started scan on 3C286. 19:16 : Stopped scan. 19:19 : Started command file /odisk/gtac/cmd/sirothia/18_031_20100813.loop1.cmd 22:02 : Stopped command file. 22:03 : W04 servo problem. 22:04 : Started next command file /odisk/gtac/cmd/sirothia/18_031_20100813.loop2to5.cmd 07:43 :Stopped command file. 07:47 :Started scan on J0218+4232 for 10 minutes. 07:57 :Stopped scan. 07:59 :Started scan on 3C48 for 15 minutes. 08:15 :Stopped scan and observation session over.