GTAC Observation Log 1. Date : 15/3/2012 2. Observation Sr. No. : 5884 3. Observer : Sandeep Sirothia 4. Observer's Email : sirothia@ncra.tifr.res.in,ishwar@ncra.tifr.res.in 5. Project Name : The GMRT extra-galactic sky survey at 150 MHz 6. Project Code : 21_057 7. Operator(s) : Navanath, Nilesh, 8. Command File : /odisk/gtac/cmd/sirothia/21_057_20120315a.cmd, 9. LTA File : /gsbifrdata/15mar/21_057_15mar2012.lta 10. LogFlag File : /odisk/online1/logflags/21_057.FLAGS.30 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 14 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218 MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 10+12 dB, 16 MHz,ON, IF-CH2 : 10+12 dB, 16 MHz,ON GSB SETTINGS : 14. GSB Mode : RealTime 15. GSB LTA : 8 16. GAIN EQ : ON 17. Stokes : Full_Polar 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 16 MHz 21. Maximum Channels : 256 22. IFBW (MHz) : LO5 (KHz) : 16:138000-167000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 156 156 218 218 62 62. 25. Integration Time : 0.126 Sec. 26. No of Antennas Working(Fringing) :28 27. Name of Non-Working Antennas (with reason for each) : S01,E05 : Strong RFI. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 22:00 - 06:12 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 2s data file : /gsbifrdata1/15mar/21_057_15mar2012_2s.lta --------------------------------------------------------- 21:20 : Started settings for observation. NOTE : It looks like that data is affected by scintillation. 22:08 : Started scan on 3c147 for ~15min. 22:30 : Started scan on J0953+0755 for ~18min. 22:50 : Started command file. '/odisk/gtac/cmd/sirothia/21_057_20120315a.cmd' 06:12 : Observation Over.