GTAC Observation Log 1. Date : 12/12/2010 2. Observation Sr. No. : 5137 3. Observer : Sandeep Sirothia, Ishwar Chandra 4. Observer's Email : sirothia@ncra.tifr.res.in,ishwar@ncra.tifr.res.in 5. Project Name : Extra Galactic Survey @ 150 MHz Using GMRT 6. Project Code : 19_043 7. Operator(s) : Deepak, Manisha, Nilesh, Rupsingh, Santaji, Shilpa 8. Command File : /odisk/gtac/cmd/sirothia/19_043_20101212a.cmd, /odisk/gtac/cmd/sirothia/19_043_20101212b.cmd 9. LTA File : /rawdata/12dec/19_043_12dec2010.lta, /rawdata1/12dec/19_043_12dec2010.ltb 10. GSB File : /gsbifrdata/12dec/19_043_12dec2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/19_043.FLAGS.34 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 : 6+12 dB, 16 MHz,ON, IF-CH2 : 6+12 dB, 16 MHz,ON 15. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : GHB Settings : 16. GHB Channels : 0:127:1 17. Correlator Mode : UsbPolar 18. Frequency Parameters (TPA) : 156 156 218 218 62 62 GSB Settings : 19. Maximum Channels : 256 20. Final Bandwidth (MHz): OFF MHz; Step # 0 21. IFBW : LO5(MHz) : 16:138-167 MHz 22. Stokes : Full_Polar 23. Beam - 1 : OFF 24. Beam - 2 : OFF 25. Integration Time : 128 LTA ~ 16.908 Sec. 26. No of Antennas Working(Fringing) :29 27. Name of Non-Working Antennas (with reason for each) : S04 : Fringe fluctuation(GHB) 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 16:30 - 07:25 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : * 2S data file * /rawdata/12dec/19_043_12dec2010_2s.lta, /rawdata1/12dec/19_043_12dec2010_2s.ltb, /gsbifrdata1/12dec/19_043_12dec2010_gsb_2s.lta ------------------------------------------------ 16:49 : Started scan on 3C48. 17:10 : Stopped scan. 17:12 : Started scan on J0218+4232. 17:30 : Stopped scan. 17:33 : Started command file '/odisk/gtac/cmd/sirothia/19_043_20101212a.cmd' 00:05 : Stopped command file. 00:11 : '/odisk/gtac/cmd/sirothia/19_043_20101212b.cmd' command file started. 06:48 : Stopped command file. C05 servo problem. 06:57 : Started scan on 3C286. 07:25 : stopped das & observation session. ------------ Note : No delay jumps seen in GHB & GSB. -------------