GTAC Observation Log 1. Date : 15/02/2009 2. Observation Sr. No. : 4201 3. Observer : E M Wilcots 4. Observer's Email : ewilcots@astro.wisc.edu 5. Project Name : AGN Feedback in Radio-Loud Galaxy Groups 6. Project Code : 15KMH01 7. Operator(s) : Deepak, Manisha, Navanath, Nilesh, Rupsingh, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/15kmh01/obs4.cmd, /odisk/gtac/cmd/15kmh01/obs5.cmd, /odisk/gtac/cmd/15kmh01/obs6.cmd 9. LTA File : /rawdata/15feb/15kmh01_15feb2009.lta, /rawdata1/15feb/15kmh01_15feb2009.ltb, /rawdata/15feb/15kmh01_15feb2009_diffstop.lta, /rawdata1/15feb/15kmh01_15feb2009_diffstop.ltb, /rawdata/15feb/15kmh01_15feb2009.lta.1, /rawdata1/15feb/15kmh01_15feb2009.ltb.1, /rawdata/15feb/15kmh01_15feb2009_diffstop.lta.1, /rawdata1/15feb/15kmh01_15feb2009_diffstop.ltb.1, /rawdata/15feb/15kmh01_15feb2009.lta.2, /rawdata1/15feb/15kmh01_15feb2009.ltb.2, /rawdata/15feb/15kmh01_15feb2009_diffstop.lta.2, /rawdata1/15feb/15kmh01_15feb2009_diffstop.ltb.2, 10. LogFlag File : /btemp2/logflags/15KMH01.FLAGS.1 ANTENNA SETTINGS : 11. RF Freq(MHz) & Solar Attn(dB)- RF1 : 614 MHz ,RF2 : 244 MHz, SA1 : 0 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 680 MHz, ILO2 : 310 MHz, IVLO1 : 66 MHz, IVLO2 : 66 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 6 MHz,ON 14. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 614 244 680 310 66 66 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :28 20. Name of Non-Working Antennas (with reason for each) : E06 : parked for painting. C14 : parked for paining. 21. Note for Backup : -- 22. Start and End Time of Obs.(IST): 11:00 - 08:10 23. ONLINE Machine : Bhaskar 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : -------------------------------------------- NOTE FOR THE USER : "The online fringe stopping algorithm was found to be in error by about 2s after 1Jan2009. This differential fringe rate was applied using the program diffstop. The fringe rate was corrected for an error of +2.0s, and the timestamps were also updated by the same amount." --------------------------------------------- 11:00 : Started setup for 15KMH01. 11:37 : Started scan flux cal 3C48 for 15min. 12:08 : Command file started. 12:08 : Err in cmd file, stopped cmd file. 12:10 : Scan # 1,2,3 are bad. 12:20 : Started command file. 18:10 : C14 started working. 21:12 : Stopped command file. 21:15 : Started scan on 3C147. 21:35 : Stopped scan. Changed the recording files. /rawdata/15feb/15kmh01_15feb2009.lta.1 /rawdata1/15feb/15kmh01_15feb2009.ltb.1 21:42 : Started scan on 3C147. C11 : 175pol no fringe. 21:53 : Stopped scan. 21:58 : Started scan on NGC3665. 22:12 : Stopped scan. 22:13 : '/odisk/gtac/cmd/15kmh01/obs5.cmd' command file started. 23:58 : Stopped command file. 00:01 : Started common record for two record files on 3C147 for 15 mins. 00:01 : C11 USB-175 polarisation not fringing. 00:15 : Stopped scan. 00:26 : Started command file '/odisk/gtac/cmd/15kmh01/obs6.cmd'. 07:52 : Stopped command file. 07:55 : Started scan on 3c286 for 15min. 08:10 : Stopped scan and closed observation.