GTAC Observation Log 1. Date : 14/9/2012 2. Observation Sr. No. : 6161 3. Observer : Narendranath Patra,Karen Lee-Waddell 4. Observer's Email : karen.lee-waddell@rmc.ca,narendra@ncrea.tifr.res.in 5. Project Name : HI Mapping of the Interacting Groups NGC 4725/4747 and NGC 871/876/877 6. Project Code : 22_009 7. Operator(s) : Nilesh, Rupsingh, 8. Command File : /odisk/gtac/cmd/22_009/field_a.cmd 9. LTA File : /gsbifrdata/14sep/22_009_14ep2012.lta 10. LogFlag File : /odisk/online1/logflags/22_009.FLAGS.6 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1391.7835 MHz ,RF2 : 1391.7835 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1330 MHz, ILO2 : 1330 MHz , IVLO1 : 61.7835 MHz, IVLO2 : 61.7835 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 : OFF 17. Stokes : Total_Intensity 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 16 MHz 21. Maximum Channels : 512 22. IFBW (MHz) : LO5 (KHz) : Custom :- 16 : 138.21 - 166.78 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 1391.7835 1391.7835 1330 1330 61.7835 61.7835. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :28 27. Name of Non-Working Antennas (with reason for each) : C03 : Maintenance. C09 : Low fringe. S01 : Low fringe. S06 : Low fringe. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 21:30 - 06:00 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : 21:36 : Started scan on 3C48. 22:02 : Stopped scan. 22:05 : Command file started. 05:45 : Command file stopped. 05:47 : Started scan on 3C48. 06:00 : Observation stopped.