GTAC Observation Log 1. Date : 22/10/2012 2. Observation Sr. No. : 6178 3. Observer : Dharam Vir Lal 4. Observer's Email : dharam@ncra.tifr.res.in 5. Project Name : N2484, A736 6. Project Code : 23_055 7. Operator(s) : Deepak, Nilesh, Sachin, 8. Command File : /odisk/gtac/cmd/dharam/23_055_23oct_s8.cmd, /odisk/gtac/cmd/dharam/23_055_23oct.cmd, 9. LTA File : /gsbifrdata/23oct/23_055_23oct2012.lta, /gsbifrdata/23oct/23_055_23oct2012_s14.lta 10. LogFlag File : /odisk/online1/logflags/23_055.FLAGS.1 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 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+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 : OFF 19. Beam - 2 : OFF 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 : 8.053 Sec. 26. No of Antennas Working(Fringing) :25 27. Name of Non-Working Antennas (with reason for each) : C00 : BLDC work. C01 : No fringe. C05 : No fringe. S01 : Feed jam. S06 : Fibre cut. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 03:00 - 09:25 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : Note -E02 has intermediate fringe fluctuation -------------------------------------------------------------------------------- 00:41:56 - 01:07:59 Recorded data on 3C48 01:19:31 - 01:26:14 Recorded data on 0834+555 01:29:43 - 02:05:50 Recorded data on N2484 02:07:10 - 02:13:53 Recorded data on 0834+555 02:17:22 - 02:52:56 Recorded data on N2484 02:49 : S02 got ABC time out and reset. 02:54:17 - 03:01:07 Recorded data on 0834+555 03:04:45 - 03:40:19 Recorded data on N2484 03:41 : S02 started working. But W04 also started giving frequent resets. 03:41:39 - 03:48:30 Recorded data on 0834+555 03:52:08 - 04:27:42 Recorded data on N2484 04:29:10 - 04:35:53 Recorded data on 0834+555 04:39:30 - 04:49:10 Recorded data on N2484 04:51:59 - 04:56:57 Recorded data on 0834+555 05:01:23 - 05:08:06 Recorded data on 3C48 -------------------------------------------------------------------------------- Started new command file on A736 source. Non Working antennas C00 : BLDC work. C01 : No fringe. C05 : No fringe. S01 : Feed jam. S06 : Fibre cut. W04 : Frequently getting reset. 05:01:23 - 05:15:12 Recorded data on 3C48 05:22:03 - 05:28:14 Recorded data on 0834+555 05:33:20 - 06:08:46 Recorded data on A736 06:10:07 - 06:16:49 Recorded data on 0834+555 06:20:35 - 06:56:41 Recorded data on A736 06:57:45 - 07:04:28 Recorded data on 0834+555 07:08:14 - 07:44:36 Recorded data on A736 07:30 : W05 taken for painting. 07:45 : E02 taken for painting. 07:46:05 - 07:52:55 Recorded data on 0834+555 07:56:25 - 08:31:51 Recorded data on A736 08:33:03 - 08:39:54 Recorded data on 0834+555 08:43:15 - 08:48:45 Recorded data on A736 08:53:43 - 09:10:14 Recorded data on 3C286 09:10:35 : closed observation session.