GTAC Observation Log 1. Date : 05/02/2011 2. Observation Sr. No. : 5227 3. Observer : Rahul Basu,Simona Giacintucci 4. Observer's Email : rbasu@ncra.tifr.res.in 5. Project Name : Cluster 6. Project Code : 19_071 7. Operator(s) : Manisha, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/rathreya/19_071obs_4feb.cmd 9. LTA File : /rawdata/5feb/19_071_05feb2011.lta, /rawdata1/5feb/19_071_05feb2011.ltb 10. GSB File : /gsbifrdata/5feb/19_071_05feb2011_gsb.lta, 11. LogFlag File : /odisk/online1/logflags/19_071.FLAGS.2 ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 325 MHz ,RF2 : 325 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 255 MHz, ILO2 : 255 MHz, IVLO1 : 70 MHz, IVLO2 : 70 MHz 14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON 15. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : GHB Settings : 16. GHB Channels : 0:127:1 17. Correlator Mode : IndianPolar 18. Frequency Parameters (TPA) : 325 325 255 255 70 70 GSB Settings : 19. Maximum Channels : 256 20. Final Bandwidth (MHz): OFF MHz; Step # 0 21. IFBW (MHz) : LO5 (KHz) : 32:149000-156000 22. Stokes : Total_Intensity 23. Beam - 1 : OFF 24. Beam - 2 : OFF 25. Integration Time : 128 LTA ~ 16.908 Sec. 26. No of Antennas Working(Fringing) :29 27. Name of Non-Working Antennas (with reason for each) : C12 - Servo problem. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 01:00 - 09:01 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : ------------------------------------------------- 2s Files : /rawdata/5feb/19_071_05feb2011_2s.lta, /rawdata1/5feb/19_071_05feb2011_2s.ltb, /gsbifrdata1/5feb/19_071_05feb2011_2s_gsb.lta ------------------------------------------------- 00:52:25 : Started scan on 3C147 for ~ 11.3889min. 01:12:26 : Started scan on 1311-222 for ~ 4.72222min. 01:20:42 : Started scan on RXCJ1314 for ~ 41.3889min. 01:37:00 : C06 Started giving servo problem. 02:03:38 : Started scan on 1311-222 for ~ 4.72222min. 02:11:52 : Started scan on RXCJ1314 for ~ 41.6667min. 02:48:00 : C06 started tracking. 02:55:06 : Started scan on 1311-222 for ~ 4.72222min. 03:03:34 : Started scan on RXCJ1314 for ~ 41.3889min. 03:46:54 : Started scan on 1311-222 for ~ 4.72222min. 03:53:00 : C06 stopped tracking. 03:55:10 : Started scan on RXCJ1314 for ~ 41.6667min. 04:38:23 : Started scan on 1311-222 for ~ 4.72222min. 04:46:48 : Started scan on RXCJ1314 for ~ 41.3889min. 05:29:55 : Started scan on 1311-222 for ~ 4.72222min. 05:38:10 : Started scan on RXCJ1314 for ~ 41.1111min. 06:20:46 : Started scan on 1311-222 for ~ 4.72222min. 06:29:02 : Started scan on RXCJ1314 for ~ 41.6667min. 07:12:03 : C02 got abc reset. 07:12:24 : Started scan on 1311-222 for ~ 4.72222min. 07:20:45 : Started scan on RXCJ1314 for ~ 41.6667min. 08:03:51 : C02 started working. 08:03:50 : Started scan on 1311-222 for ~ 4.72222min. 08:12:08 : Started scan on RXCJ1314 for ~ 21.1111min. 08:36:02 : Started scan on 1311-222 for ~ 5.83333min. 08:42:00 : Stopped command file. 08:46:47 : Started scan on 3C286 for ~ 14.1667min. 09:01:00 : Stopped scan and observing session over.