GTAC Observation Log 1. Date : 11/12/2009 2. Observation Sr. No. : 4647 3. Observer : J N Chengalur 4. Observer's Email : chengalu@ncra.tifr.res.in 5. Project Name : GGDP 6. Project Code : 17_027 7. Operator(s) : Deepak, Navanath, Nilesh, Rupsingh, Shilpa 8. Command File : /odisk/gtac/cmd/philiplah/cl0024.cmd, /odisk/gtac/cmd/philiplah/zcosmos.cmd, /odisk/gtac/cmd/philiplah/a370.cmd 9. LTA File : /rawdata/11dec/17_027_11dec2009.lta, /rawdata1/11dec/17_027_11dec2009.ltb, /rawdata/11dec/17_027_11dec2009.lta.1, /rawdata1/11dec/17_027_11dec2009.ltb.1, /rawdata/11dec/17_027_11dec2009.lta.2, /rawdata1/11dec/17_027_11dec2009.ltb.2 10. LogFlag File : /odisk/online1/logflags/17_027.FLAGS.10 ANTENNA SETTINGS : 11. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1024 MHz ,RF2 : 1024 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1095 MHz, ILO2 : 1095 MHz, IVLO1 : 71 MHz, IVLO2 : 71 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON 14. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 1024 1024 1095 1095 71 71 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) : C13 : Taken for painting. E05 : Taken for painting. also strong RFI Lines. E04 : Low Fringe. 21. Note for Backup : -- 22. Start and End Time of Obs.(IST): 16:00 - 09:10 23. ONLINE Machine : Lenyadri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : 16:00 : Started setup. tpa 1024 1024 1095 1095 71 71. 16:19 : Started scan on 3C286. ************************************************** GSB DATA FILE : /gsbifrdata/11dec/17_027_11dec09_gsb.lta ************************************************** 16:30 : Stopped scan. 16:45 : Started command file. 17:50 : C13 & E05 released for observation. 19:35 : Source at transit; stopped command file. 19:38 : Started scan on 0022+002. 19:55 : Started command file. 20:37 : Started scan on 0022+002. 20:54 : Started scan on 3C147 ~10min. 21:04 : Stopped scan and changed LO settings. tpa 1040 1040 1110 1110 70 70. ************************************************** GSB DATA FILE : /gsbifrdata/11dec/17_027_11dec09_gsb.lta.1 ************************************************** 21:08 : Started scan on 3C48 ~10min. 21:18 : Stopped scan and started command file. 02:46 : Started scan on 3C147 for 10 min. 02:50 : Stopped scan. ************************************************** GSB DATA FILE : /gsbifrdata/11dec/17_027_11dec09_gsb.lta.2 ************************************************** settings : 1040 1040 1110 11110 70 70 03:01 : Started scan on 3C147 for 10min. 03:21 : Started command file. 08:37 : E05 taken for painting. 08:49 : Stopped command file. 08:54 : Started scan on 3C286. 09:10 : Stopped scan and observing session over.