GTAC Observation Log 1. Date : 02/02/2013 2. Observation Sr. No. : 6357 3. Observer : Narendranath Patra,Karen Lee-Waddell 4. Observer's Email : narendra@ncra.tifr.res.in,karen.lee-waddell@rmc.ca 5. Project Name : An unbiased study of the dwarf galaxy populations in gas-rich gr oups: HI mapping of NGC 4725/47 6. Project Code : 23_003 7. Operator(s) : Sachin, 8. Command File : /odisk/gtac/cmd/23_003/feb2/n4725left.cmd 9. LTA File : /gsbifrdata/02feb/23_003_02feb2013.lta 10. LogFlag File : /odisk/online1/logflags/23_003.FLAGS.4 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1404.3835 MHz ,RF2 : 1404.3835 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345 MHz , IVLO1 : 59.3835 MHz, IVLO2 : 59.3835 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 : Total_Intensity 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 16 MHz 21. Maximum Channels : 512 22. IFBW (MHz) : LO5 (KHz) : 16:138000-167000 23. Final Bandwidth (MHz): 4 MHz; Step # 2 24. Frequency Parameters (TPA) : 1404.3835 1404.3835 1345 1345 59.3835 59.3835. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :30 27. Name of Non-Working Antennas (with reason for each) : C09 : 130pol low fringe. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 23:00 - 07:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 23:00 : Started set up 23:03 : Started scan on 3C147. 23:13 : Stopped scan. 23:17 : Started command file. 00:23 : Stopped command file and started same command file with different phase cal. 02:51 : E03 got reset. 03:17 : E03 started working. 06:35 : Stopped command file and started scan on phase cal. 06:44 : Stopped scan on phase cal. 06:46 : Started scan on 3C286. 07:00 : Stopped scan and observation session.