GTAC Observation Log 1. Date : 04/06/2010 2. Observation Sr. No. : 4899 3. Observer : Ekta 4. Observer's Email : ekta@ncra.tifr.res.in 5. Project Name : MRK1416 6. Project Code : 18_055 7. Operator(s) : Amruta, Deepak, Rupsingh, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/ekta/mrk1416.cmd, /odisk/gtac/cmd/ekta/tol1108.cmd, /odisk/gtac/cmd/ekta/sbs1428+457.cmd 9. LTA File : /rawdata/4jun/18_055_4jun2010.lta, /rawdata/4jun/18_055_4jun2010.lta.1, /rawdata/4jun/18_055_04jun2010.lta.1, /rawdata1/4jun/18_055_4jun2010.ltb, /rawdata1/4jun/18_055_4jun2010.ltb.1, /rawdata1/4jun/18_055_04jun2010.ltb.1 10. GSB File : /gsbifrdata/4jun/18_055_4jun2010_gsb.lta, /gsbifrdata/4jun/18_055_4jun2010_gsb.lta.1, /gsbifrdata/4jun/18_055_04jun2010_gsb.lta.2 11. LogFlag File : /odisk/online1/logflags/18_055.FLAGS.1 ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1408.39 MHz ,RF2 : 1408.39 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1340 MHz, ILO2 : 1340 MHz, IVLO1 : 68.39 MHz, IVLO2 : 68.39 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 : 2000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 1408.39 1408.39 1340 1340 68.39 68.39 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :25 20. Name of Non-Working Antennas (with reason for each) : C01 - Off. C03 - Phase not stable. C06 - No fringe @130. E03 - Feed jam. S01 - mcm time out. 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 14:00 - 01:00 23. ONLINE Machine : Shivneri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : 14:06 : Started scan on 3C147. 14:21 : Started command file '/odisk/gtac/cmd/ekta/mrk1416.cmd' 16:04 : E03 started working. 18:43 : Stopped command file. 18:46 : Started scan on 3C286. 18:52 : Stopped scan. 18:53 : Setting changed LO1=1345MHz, LO4=66.79 tpa 1411.79 1411.79 1345 1345 66.79 66.79 18:57 : Started scan on 3C286. 19:09 : Stopped scan. 19:17 : Started command file '/odisk/gtac/cmd/ekta/tol1108.cmd' 23:39 : Command file stopped. 23:41 : Started scan on 3c286 for 15min. 23:56 : Setting changed. Setting changed LO1=1340MHz, LO4=68.18 tpa 1408.18 1408.18 1340 1340 68.18 68.18 GSB : 16mhz 256 channal , final bw=2mhz, fractional bw=0.375 00:00 : Started scan on 3c286 for 10min. 00:20 : Started command file. /odisk/gtac/cmd/ekta/sbs1428+457.cmd 02:59 : Stopped command file and observing session over.