GTAC Observation Log 1. Date : 30/3/2013 2. Observation Sr. No. : 6448 3. Observer : Sandip Sirothia, Ishwar Chandra 4. Observer's Email : sirothia@ncra.tifr.res.in,ishwar@ncra.tifr.res.in 5. Project Name : Makeup Observation: 23_066 6. Project Code : 23_066 7. Operator(s) : Navanath, Pramod, Shilpa, Surender 8. Command File : /odisk/gtac/cmd/sirothia/23_066_20130330a.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330b.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330c.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330d.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330e.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330f.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330g.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330h.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330i.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330j.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330k.cmd, /odisk/gtac/cmd/sirothia/23_066_20130330l.cmd 9. LTA File : /gsbifrdata1/30mar/23_066_30mar2013.lta 10. LogFlag File : /odisk/online1/logflags/23_066.FLAGS.21 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 10+12 dB, 32 MHz,ON, IF-CH2 : 10+12 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Mode : RealTime 15. GSB LTA : 8 16. GAIN EQ : ON 17. Stokes : Total_Intensity 18. Beam - 1 : IA 19. Beam - 2 : PA 20. ACQ BW : 32 MHz 21. Maximum Channels : 256 22. IFBW (MHz) : LO5 (KHz) : 32:149000-156000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 591 591 540 540 51 51. 25. Integration Time : 2.013 Sec. 26. No of Antennas Working(Fringing) :28 27. Name of Non-Working Antennas (with reason for each) : W02 : BLDC work. C09 : Taken for painting. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 14:40 - 06:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 14:40 : Started set for 610MHz. Selection of antennas in GAC 15:13 : Phasing done on 3C48. 15:14 : Started scan on 3C48. 15:29 : Stopped scan on 3C48. 15:34 : Started following command file. '/odisk/gtac/cmd/sirothia/23_066_20130330a.cmd' 16:42 : Stopped command file and started following command file. '/odisk/gtac/cmd/sirothia/23_066_20130330b.cmd' 17:59 : Stopped command file. 18:10 : Started following command file. '/odisk/gtac/cmd/sirothia/23_066_20130330c.cmd' 18:20 : C09 released for observation. 19:39 : C09 is taken in GAC for observation. 19:39 : Started following command file. '/odisk/gtac/cmd/sirothia/23_066_20130330d.cmd' 20:51 : Stopped command file and started new command file. '/odisk/gtac/cmd/sirothia/23_066_20130330e.cmd' 21:59 : Stopped command file and started new command file. '/odisk/gtac/cmd/sirothia/23_066_20130330f.cmd' 23:00 : Stopped command file and started new command file. '/odisk/gtac/cmd/sirothia/23_066_20130330g.cmd' 23:09 : C00 time out and removed from from GAC. 23:24 : Stopped command file & due to low fringe C10 removed from GAC. 23:26 : Restarted command file. 00:06 : Scintillation appeared. 00:11 : Stopped command file. 00:13 : Started command file. '/odisk/gtac/cmd/sirothia/23_066_20130330h.cmd' 01:13 : Scintillation vanished. 01:18 : Stopped command file. 01:20 : Started command file. '/odisk/gtac/cmd/sirothia/23_066_20130330i.cmd' 02:17 : C10 servo problem. 02:29 : Stopped command file. 02:30 : Started command file. '/odisk/gtac/cmd/sirothia/23_066_20130330j.cmd' 03:36 : Stopped command file. 03:38 : Started command file. '/odisk/gtac/cmd/sirothia/23_066_20130330l.cmd' 04:43 : Stopped command file. 04:45 : Started command file. '/odisk/gtac/cmd/sirothia/23_066_20130330k.cmd' 05:14 : Stopped command file. 05:18 : Started scan on 3C286. 06:00 : Stopped scan & observing session is over.