GTAC Observation Log 1. Date : 20/08/2010 2. Observation Sr. No. : 5022 3. Observer : Virginia, Kathrin ,DJS 4. Observer's Email : vkilborn@swin.edu.au,kwolfinger@astro.swin.edu.au,djs@ncra.tifr.res.in 5. Project Name : J1209+4720 6. Project Code : 18_008 7. Operator(s) : Amruta, Deepak, Navanath, Shilpa 8. Command File : /odisk/gtac/cmd/djs/j1209.cmd, /odisk/gtac/cmd/djs/j1215.cmd 9. LTA File : /rawdata/20aug/18_008_20aug2010.lta, /rawdata1/20aug/18_008_20aug2010.ltb, /rawdata/20aug/18_008_20aug2010.lta.1, /rawdata1/20aug/18_008_20aug2010.ltb.1 10. GSB File : /gsbifrdata/20aug/18_008_20aug2010_gsb.lta, /gsbifrdata/20aug/18_008_20aug2010_gsb.lta.1 11. LogFlag File : /odisk/online1/logflags/18_008.FLAGS ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1418.6 MHz ,RF2 : 1418.6 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1490 MHz, ILO2 : 1490 MHz, IVLO1 : 71.4 MHz, IVLO2 : 71.4 MHz 14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 MHz,ON 15. BB BW(KHz) & BB ALC : 4000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 1418.6 1418.6 1490 1490 71.4 71.4 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :29 20. Name of Non-Working Antennas (with reason for each) : E03 : No fringe. 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 09:00 - 18:12 23. ONLINE Machine : Shivneri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : 09:00 : Started setup for 18_008. ---------------------------------------------------------------- GHB settings :- ---------------------------------------------------------------- tpa 1418.60 1418.60 1490.00 1490.00 71.40 71.40 IF BW =16mhz BB BW = 4mhz int = 16s (GHB) mode = Indian polar LO1 =1490mhz. ALC's=ON L04 =71.40mhz. ---------------------------------------------------------------- GSB Settings :- ---------------------------------------------------------------- Line freq=1416.60 MHz. Final Band width=4 ( 4.1666665 ) MHz. LO1=1490 MHz. (upper) steps : [IFBW] Rf1 - Rf2 * Line Freq. 0 : [ 4.2] 1428.00000 - 1423.83333 MHz. 1 : [ 8.3] 1423.83333 - 1419.66667 MHz. 2 : [12.5] 1419.66667 - 1415.50000 MHz. * 1416.60 MHz. 3 : [16.7] 1415.50000 - 1411.33333 MHz. Use LO5 = 138000, 167000 KHz. and Step # 2 ---------------------------------------------------------------- 09:20 : Started scan on 3C147 . 09:50 : Started command file. /odisk/gtac/cmd/djs/j1209.cmd* 11:11 : MSEB power failure for E-arm 11:14 : Power resumed. 11:23 : E02 back in obs. 11:58 : online software problem. 12:10 : Started scan manually on source. 12:51 : Restarted command file. 13:40 : Started scan on 3C147 for 15min. 13:55 : Scan stopped. 14:00 : Started New sttings. ---------------------------------------------------------------- tpa 1419.60 1419.60 1490.00 1490.00 70.40 70.40 IF BW =16mhz BB BW = 4mhz int = 16s (GHB) mode = Indian polar LO1 =1490mhz. ALC's=ON L04 =70.40mhz. ---------------------------------------------------------------- GSB Settings :- ---------------------------------------------------------------- Line freq=1417.60 MHz. Final Band width=4 ( 4.1666665 ) MHz. LO1=1490 MHz. (upper) steps : [IFBW] Rf1 - Rf2 * Line Freq. 0 : [ 4.2] 1428.00000 - 1423.83333 MHz. 1 : [ 8.3] 1423.83333 - 1419.66667 MHz. 2 : [12.5] 1419.66667 - 1415.50000 MHz. * 1417.60 MHz. 3 : [16.7] 1415.50000 - 1411.33333 MHz. ---------------------------------------------------------------- 14:05 : Started scan on 3c286 for 15min. 14:24 : Started command file. /odisk/gtac/cmd/djs/j1215.cmd 17:53 : Stopped command file 17:56 : Started scan on 3C286. 18:12 : Stopped scan and observing session over.