GTAC Observation Log 1. Date : 07/05/2009 2. Observation Sr. No. : 4274 3. Observer : Ramana Athreya 4. Observer's Email : rathreya@ncra.tifr.res.in 5. Project Name : A1835 6. Project Code : 16_051 7. Operator(s) : Jayprakash, Navanath, Shilpa 8. Command File : /odisk/gtac/cmd/rathreya/16s051a.cmd, /odisk/gtac/cmd/rathreya/16s051b.cmd 9. LTA File : /rawdata/7may/16_051_7may2009_16s.lta, /rawdata1/7may/16_051_7may2009_16s.ltb, /rawdata/7may/16_051_7may2009_2s.lta, /rawdata1/7may/16_051_7may2009_2s.ltb, /rawdata/7may/16_051_7may2009_2s.lta.1, /rawdata1/7may/16_051_7may2009_2s.ltb.1, /rawdata/7may/16_051_7may2009_2s.lta.2, /rawdata1/7may/16_051_7may2009_2s.ltb.2, /rawdata/7may/16_051_7may2009_2s.lta.3, /rawdata1/7may/16_051_7may2009_2s.ltb.3, /rawdata/7may/16_051_7may2009_2s.lta.4, /rawdata1/7may/16_051_7may2009_2s.ltb.4 10. LogFlag File : /odisk/online1/logflags/16_051.FLAGS 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) :27 20. Name of Non-Working Antennas (with reason for each) : C05 : No fringe. E04 : Servo problem. E06 : abc timeout. 21. Note for Backup : -- 22. Start and End Time of Obs.(IST): 18:10 - 07:00 23. ONLINE Machine : Shivneri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : 18:10 : Started settings. 18:41 : Started scan on 3C286. 19:06 : Stopped scan. 19:21 : '/odisk/gtac/cmd/rathreya/16s051a.cmd' command file started. 19:51 : Stopped command file. 19:53 : '/odisk/gtac/cmd/rathreya/16s051b.cmd' command file started. 20:42 : S03,S04 automatically parked because of high wind. 21:20 : S03 started working. 21:40 : Changed the recording files. /rawdata/7may/16_051_7may2009_2s.lta.1, /rawdata1/7may/16_051_7may2009_2s.ltb.1 05:33 : Stopped the command file. 05:50 : Started the scan on 3c48 for 30min. 06:20 : Stopped the scan.