GTAC Observation Log 1. Date : 23/2/2012 2. Observation Sr. No. : 5843 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 - TGSS 6. Project Code : 21_057 7. Operator(s) : Sachin, 8. Command File : /odisk/gtac/cmd/sirothia/21_057_20120223a.cmd 9. LTA File : /gsbifrdata/23feb/21_057_23feb2012.lta 10. LogFlag File : /odisk/online1/logflags/21_057.FLAGS.29 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 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+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 : 16.106 Sec. 26. No of Antennas Working(Fringing) :29 27. Name of Non-Working Antennas (with reason for each) : C14 - No fringe. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 01:00 - 06:15 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : ------------------------------------------------------------- 2s file : /gsbifrdata1/23feb/21_057_23feb2012_2s.lta ------------------------------------------------------------- 00:09:21 : Started scan on 3C147 for ~ 67.6457 min. 01:22:48 : Started scan on J0953+0755 for ~ 25.2329 min. 01:59:09 : Started command file. 05:57:00 : Stopped command file. 06:03:12 : Started scan on 3C286. 06:25:00 : Stopped scan on 3C286 and closed observation session.