GTAC Observation Log 1. Date : 21/08/2010 2. Observation Sr. No. : 5024 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 : J1205+4605 6. Project Code : 18_008 7. Operator(s) : Amruta, Manisha, Navanath, Shilpa 8. Command File : /odisk/gtac/cmd/kathrin/j1205.cmd, /odisk/gtac/cmd/kathrin/j1239.cmd 9. LTA File : /rawdata/21aug/18_008_21aug2010.lta, /rawdata1/21aug/18_008_21aug2010.ltb, /rawdata/21aug/18_008_21aug2010.lta.1, /rawdata1/21aug/18_008_21aug2010.ltb.1 10. GSB File : /gsbifrdata/21aug/18_008_21aug2010_gsb.lta, /gsbifrdata/21aug/18_008_21aug2010_gsb.lta.1 11. LogFlag File : /odisk/online1/logflags/18_008.FLAGS.1 ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1418.9 MHz ,RF2 : 1418.9 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1490 MHz, ILO2 : 1490 MHz, IVLO1 : 71.1 MHz, IVLO2 : 71.1 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) : 1418.9 1418.9 1490 1490 71.1 71.1 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) : E03 : No fringe. C10 : Phase jumps in hardware corr. S06 : Phase jump in h/w and s/w correlator 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 09:40 - 18:05 23. ONLINE Machine : Shivneri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : GSB settings : channels = 512 Final Band width=4 ( 4.1666665 ) MHz. ACQ BW = 16MHz 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. * 1416.9 MHz. 3 : [16.7] 1415.50000 - 1411.33333 MHz. Use LO5 = 138000, 167000 KHz. and Step # 2 ------------------------------------------------------------------ 09:45 : Started settings. 09:52 : Started scan on 3C147. 10:13 : Stopped scan. 10:19 : Started command file /odisk/gtac/cmd/kathrin/j1205.cmd. 13:41 : Stopped command file. 13:45 : Started scan on 3C147. 13:57 : Stopped scan. ------------------------------------------------------------------ Changed the settings. tpa 1418.2 1418.2 1490 1490 71.8 71.8 IF BW : 16MHz BB BW : 4MHz ALC on GSB settings : Line freq=1416.2 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. * 1416.2 MHz. 3 : [16.7] 1415.50000 - 1411.33333 MHz. Use LO5 = 138000, 167000 KHz. and Step # 2 ------------------------------------------------------------------- : C14 no fringe in GHB and GSB. 14:12 : Started scan on 3C286. 14:25 : Stopped scan. 14:29 : Started command file /odisk/gtac/cmd/kathrin/j1239.cmd. 17:39 : Command file stopped. 17:40 : Started scan on 1227+365 17:47 : Started scan on 3C286 for 15mins. 18:02 : Observation stopped.