GTAC Observation Log 1. Date : 18/11/2017 2. Observation Sr. No. : 9876 3. Observer : Nikhil Mahajan, Robert Main, Marten H vanKerkwijk, Ue Li Pen, Keith Vanderlinde, Dongzi Li, FangXi Lin, I-Sheng Yang 4. Observer's Email : mahajan@astro.utoronto.ca, main@astro.utoronto.ca, mhvk@astro.utoronto.ca, pen@cita.utoronto.ca, vanderlinde@di.utoronto.ca, dzli@cita.utoronto.ca, flin@cita.utoronto.ca, iyang@perimeterinstitute.ca 5. Project Name : Search for extreme lensing events around eclipsing millisecond pulsar binaries 6. Project Code : 33_038 7. Operator(s) : Surender 8. Command File : /odisk/gtac/cmd/33_038/18nov/cmd_33_038_S2.txt,, /odisk/gtac/cmd/33_038/18nov/s3/cmd_33_038_S3.txt 9. LTA File : /gsbifrdata1/18nov/33_038_18nov2017_s2.lta, /gsbifrdata1/18nov/33_038_18nov2017.lta.1, /gsbifrdata1/18nov/33_038_18nov2017.lta, /gwbifrdata1/18nov/33_038_18nov2017_gwb_s2.lta.1, /gwbifrdata1/18nov/33_038_18nov2017_gwb_s2.lta, /gwbifrdata1/18nov/33_038_18nov2017_gwb.lta.1, /gwbifrdata1/18nov/33_038_18nov2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/33_057.FLAGS.2, /odisk/online1/logflags/33_038.FLAGS.2, /odisk/online1/logflags/33_038.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 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_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : Volt 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : S02 : : Servo Problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 18 Nov 2017 16:00:00 - 18 Nov 2017 22:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : ------------------------------------------ 16:00 : Started GSB set-up. 16:10 : Started GWB set-up. -------------------------------------------- 16:11 : GAB server problem. 16:20 : GWB set-up done. ------------------------------------------- 16:28 : GWB power eq done. 16:30 : Started phasing for done. --------------------------------------------- 16:40 : Phasing done for Both. 16:41 : GAC selection done for Both( GSB and GWB) ------------------------------------------- GWB GAC : All Central square antennas. GSB GAC : All Central square antennas. ------------------------------------------- 16:41 : Started command file. ------------------------------------------- GWB beam1 & Beam2 recording file /data5/gpuuser/* GSB data file : /mnt/a/b/c/d/* on Node33 & Node34 ------------------------------------------- 16:41 - 17:10 : CD pipeline recording problem, there was a typo mistake in the cmd file, modified cmd file and restated cmd file and also restarted GWB. -------------------------------------------- 17:10 -17:21 : Beam2 PA recording problem, after shared memory clear problem solved --------------------------------------------- 17:21 : restarted command file. --------------------------------------------- 18:30 : disk space (/mnt/c/,/mnt/b/) full on node34, so changed recording on /mnt/a/,/mnt/d/. ( gsb pa-volatge ). 18:30 : GSB stopped during killing recording process on node34 18:38 : Restarted GSB recording. 19:00 : Stopped command file and observing session over. --------------------------------------------------------- -----------------------Source--S2------------------------ --------------------------------------------------------- 19:00 : Started set-up. -------------------------------------------------------- 19:25 : Phasing done for Both. 19:26 : GAC selection done for Both( GSB and GWB) -------------------------------------------------------- GWB GAC : All antennas except S02. GSB GAC : All antennas except S02. -------------------------------------------------------- 19:28 : Started command file. /odisk/gtac/cmd/33_038/18nov/cmd_33_038_S2.txt --------------------------------------------------------- Note : RFI observed in GWB. -------------------------------------------------------- 20:45 : Started all the GSB PA-voltage recording on /mnt/d/ on node 33 &34 due to insufficient space on disk (/mnt/a/b/c/). ---------------------------------------------------------- 22:00 : Stopped cmd file and observing session over.