GTAC Observation Log 1. Date : 08/02/2015 2. Observation Sr. No. : 7596 3. Observer : Ramesh Bhat, Poonam Chandra, Evan Keane 4. Observer's Email : ramesh.bhat@curtin.edu.au, poonam@ncra.tifr.res.in, evan.keane@gmail.com 5. Project Name : Shadowing the Parkes high time resolution survey with GMRT 6. Project Code : 27_062 7. Operator(s) : Surender 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/08feb/27_062_08feb2015.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 317 MHz ,RF2 : 317 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1 15. GSB Mode : Realtime 16. GSB LTA : 4 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 16.666666 MHz 24. Final BW : 16.666666 MHz; Step # 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 317 317 255 255 62 62 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : : Gear box inspection. W02 : : Feed cage painting. W06 : : 130 No fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 08 Feb 2015 03:20:00 - 08 Feb 2015 11:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 02:55 : Power eq. on 3C286 at 250 counts. 03:05 : Re Started GSB in High Time Visibility Mode. ----------------------------------------------------- WARNING: Missing Blocks: NextStop at Blk 6175 # 04:44:34.61 Scan= 1 Blk= 261 CurBlk=6175 Wt= 48.0 # 04:44:36.63 Scan= 1 Blk= 262 CurBlk=6191 Wt= 64.0 WARNING: Missing Blocks: NextStop at Blk 6239 WARNING: Missing Blocks: NextStop at Blk 6271 # 04:44:46.69 Scan= 1 Blk= 263 CurBlk=6271 Wt= 64.0 WARNING: Missing Blocks: NextStop at Blk 6319 # 04:44:52.73 Scan= 1 Blk= 264 CurBlk=6319 Wt= 64.0 # 04:44:54.75 Scan= 1 Blk= 265 CurBlk=6335 Wt= 64.0 # 04:44:56.76 Scan= 1 Blk= 266 CurBlk=6351 Wt= 48.0 # 04:44:58.77 Scan= 1 Blk= 267 CurBlk=6367 Wt= 48.0 # 04:45:00.79 Scan= 1 Blk= 268 CurBlk=6383 Wt= 64.0 ----------------------------------------------------------- 04:00 : Note :- GSBM1,GSBM2 and All nodes were reboot. ------------------------------------------------------------ 04:37 : Re Started GSB in High Time Visibility Mode. ------------------------------------------------------------- # 04:38:08.07 Scan= 1 Blk= 117 CurBlk=3103 Wt= 48.0 WARNING: Missing Blocks: NextStop at Blk 3151 # 04:38:14.11 Scan= 1 Blk= 118 CurBlk=3151 Wt= 64.0 # 04:38:16.12 Scan= 1 Blk= 119 CurBlk=3167 Wt= 64.0 # 04:38:18.13 Scan= 1 Blk= 120 CurBlk=3183 Wt= 48.0 # 04:38:20.15 Scan= 1 Blk= 121 CurBlk=3199 Wt= 64.0 # 04:38:22.16 Scan= 1 Blk= 122 CurBlk=3215 Wt= 48.0 # 04:38:24.17 Scan= 1 Blk= 123 CurBlk=3231 Wt= 64.0 # 04:38:26.19 Scan= 1 Blk= 124 CurBlk=3247 Wt= 64.0 WARNING: Missing Blocks: NextStop at Blk 3295 # 04:38:32.22 Scan= 1 Blk= 125 CurBlk=3295 Wt= 48.0 # 04:38:34.24 Scan= 1 Blk= 126 CurBlk=3311 Wt= 64.0 # 04:38:36.25 Scan= 1 Blk= 127 CurBlk=3327 Wt= 64.0 -------------------------------------------------------- Note :- The observation could not started due to this problem ( GSB recording Missing 2 sec.data block in high time visibility mode)