GTAC Observation Log 1. Date : 18/12/2017 2. Observation Sr. No. : 9965 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) : Pramod, Surender 8. Command File : /odisk/gtac/cmd/33_038/18dec2017.cmd 9. LTA File : /gsbifrdata/18dec/33_038_18dec2017.lta, /gwbifrdata/18dec/33_038_18dec2017_gwb_250lo.lta 10. LogFlag File : /odisk/online1/logflags/33_038.FLAGS.4 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 :27 32. Name of Non-Working Antennas (with reason for each) : E04 : : Antenna reflector surface refurbishment work. C12 : : Antenna Warranty period touch-up Painting. S06 : : Servo Problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 18 Dec 2017 15:00:00 - 18 Dec 2017 20:10:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : 15:00 : Started set-up. --------------------------------------------- GWB Data CDP recording. GWBH7 : /data6/gpuuser/33_038_18dec2017/* GWBH7 : /data4/gpuuser/33_038_18dec2017/* --------------------------------------------- GWB Data PA recording. GWBH8 : /data7/gpuuser/33_038_18dec2017/* ---------------------------------------------- GSB Data recording on node33 :/mnt/b/gsbuser/33_038_18dec2017* node33 :/mnt/c/gsbuser/33_038_18dec2017* node34 :/mnt/b/gsbuser/33_038_18dec2017* node34 :/mnt/c/gsbuser/33_038_18dec2017* ---------------------------------------------- ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 250 250 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 33_038 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 16 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF ----------------------------------------------------------------- # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=29 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=29 # BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=29 # BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=29 ------------------------------------------------------------------------- ------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=29 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=29 # BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=29 # BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=29 ----------------------------------------------------------------- ----------------------------------------------------------------- 15:34:19 : Power eq and phasing done on 3C48 ----------------------------------------------------------------- 15:50:12 : Started scan on 3C446 for ~ 2.01326 min. 15:52:22 : Phasing done on 3C446 for ~ 1.87905 min. 15:56:37 : Started command file. 16:34:05 : Stopped command file due to Node34 recording problem. ---------------------------------------------------------------- 16:39:00 : Started recording both recording from GUI. ---------------------------------------------------------------- 16:39:38 : Started scan on J2051-0827 for ~ 25.904 min. -------------------------------------------------------- 17:06:00 : C12 & E04 Released for observation. -------------------------------------------------------- 17:08:49 : Started scan on 3C446 for ~ 5.50292 min. 17:14:38 : Started scan on 3C446 for ~ 4.29496 min. 17:19:15 : Started scan on 3C446 for ~ 1.74483 min. --------------------------------------------------------- 17:19:15 : GWB phasing not done due to strong RFI. --------------------------------------------------------- 17:23:15 : Started scan on J2051-0827 for ~ 25.904 min. --------------------------------------------------------- 17:50:59 : Started scan on 3C446 for ~ 4.5634 min. 17:55:44 : Started scan on 3C446 for ~ 3.087 min. ---------------------------------------------------------- 17:55:00 : No RFI observed, phasing done. --------------------------------------------------------- 17:55:00 : C12 & E04 added in GAC. --------------------------------------------------------- 18:01:06 : Started scan on J2051-0827 for ~ 26.4409 min. 18:29:07 : Started scan on 3C446 for ~ 4.29496 min. 18:33:40 : Started scan on 3C446 for ~ 0.671088 min. 18:35:03 : Started scan on 3C446 for ~ 1.87905 min. 18:38:35 : Started scan on J2051-0827 for ~ 26.0382 min. 19:06:03 : Started scan on 3C446 for ~ 3.89231 min. 19:10:24 : Started scan on 3C446 for ~ 2.01326 min. 19:14:00 : Started scan on J2051-0827 for ~ 25.6356 min. 19:41:20 : Started scan on 3C446 for ~ 3.087 min. 19:44:42 : Started scan on 3C446 for ~ 1.87905 min. 19:48:12 : Started scan on J2051-0827. 20:00:00 : Stopped scan and observing session over.