GTAC Observation Log 1. Date : 27/01/2011 2. Observation Sr. No. : 5215 3. Observer : Sandeep Sirothia, Ishwara 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, Navanath, Nilesh, 8. Command File : /odisk/gtac/cmd/sirothia/19_043_20110127a.cmd, /odisk/gtac/cmd/sirothia/19_043_20110127b.cmd 9. LTA File : /rawdata/27jan/19_043_27jan2011.lta, /rawdata1/27jan/19_043_27jan2011.ltb 10. GSB File : /gsbifrdata/27jan/19_043_27jan2011_gsb.lta 11. LogFlag File : /odisk/online1/logflags/19_043.FLAGS.59 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 : 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 (MHz) : LO5 (KHz) : 16:138000-167000 22. Stokes : Full_Polar 23. Beam - 1 : IA 24. Beam - 2 : PA 25. Integration Time : 128 LTA ~ 16.908 Sec. 26. No of Antennas Working(Fringing) :27 27. Name of Non-Working Antennas (with reason for each) : C00,C03 : Painting W05 : Maintenance. C08 : zero cross (GHB) 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 16:00 - 07:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : * 2S data file * /rawdata/27jan/19_043_27jan2011_2s.lta, /rawdata1/27jan/19_043_27jan2011_2s.ltb, /gsbifrdata1/27jan/19_043_27jan2011_gsb_2s.lta, -------------------------------------------------------------- 16:00 : Started setup for project 19_043. 16:26 : Started scan on flux cal for 20min. 16:48 : Started scan on Pol calibrator J0218+4232for 10min. 16:50 : W05 Started working 17:05 : Scan stopped. ...changing antenna track to inner... 17:18 : Started cmd file. /odisk/gtac/cmd/sirothia/19_043_20110127a.cmd 00:25 : Command file stopped. 00:26 : Started command file /odisk/gtac/cmd/sirothia/19_043_20110127b.cmd 06:22 : Command file stopped. 06:24 : Started scan on 3C286. 07:00 : Stopped scan and observing session over. -------------------------------------------------------------- Delay jumps w.r.to E06 : No delay jumps in USB and LSB. GSB : S02 shows delay jumps for 130channel. S02,S06 shows delay jumps for 175channel. --------------------------------------------------------------