GTAC Observation Log 1. Date : 25/12/2017 2. Observation Sr. No. : 9983 3. Observer : Robert Main, Dongzi Li, FangXi Lin, Nikhil Mahajan, Ue Li Pen, Keith Vanderlinde, Marten H vanKerkwijk, I-Sheng Yang 4. Observer's Email : main@astro.utoronto.ca, dzli@cita.utoronto.ca, flin@cita.utoronto.ca, mahajan@astro.utoronto.ca, pen@cita.utoronto.ca, vanderlinde@di.utoronto.ca, mhvk@astro.utoronto.ca, iyang@perimeterinstitute.ca 5. Project Name : Understanding the Extreme Lensing Events of the Black Widow`s radio eclipse 6. Project Code : 33_012 7. Operator(s) : Navnath, Surender 8. Command File : /odisk/gtac/cmd/33_012/25dec2017.cmd 9. LTA File : /gsbifrdata1/25dec/33_012_25dec2017_610.lta, /gwbifrdata2/25dec/33_012_25dec2017_550_gwb.lta 10. LogFlag File : /odisk/online1/logflags/33_012.FLAGS.5 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 : 540MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,OFF, IF-CH2 : 4+14 dB, 32 MHz,OFF 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 : ON 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) : 591 591 540 540 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C12 : : Touch Up painting E04 : : Surface Refurbishment Work. E06 : : Painting Work. E03 : : Ch2 no fringe in both GSB and GWB. 33. Note for Backup :For GSB data : node33 and node34 : /mnt/b/gsbuser/33_012_25dec2017/* /mnt/c/gsbuser/33_012_25dec2017/* for GWB on gwbh7:/data6/gpuuser/25dec2017/* 34. Start and End Time of Obs.(IST): 25 Dec 2017 12:00:00 - 25 Dec 2017 17:10:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 13:30 : Started power eq and phasing. 14:00 : Started GWB chain. 14:10 : Started cmd file. /odisk/gtac/cmd/33_012/25dec2017.cmd :::::::::::::: gsb_gac.dat :::::::::::::: # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E05 S01 S02 S03 S04 W01 W02 W03 Total=22 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E05 S01 S02 S03 S04 W01 W02 W03 Total=22 # BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E05 S01 S02 S03 S04 W01 W02 W03 Total=22 # BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E05 S01 S02 S03 S04 W01 W02 W03 Total=22 :::::::::::::: gwb_gac.dat :::::::::::::: # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E05 S01 S02 S03 S04 W01 W02 W03 Total=22 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E05 S01 S02 S03 S04 W01 W02 W03 Total=22 ------------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 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 33_012 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : ON -------------------------------- ------------GSB Setting--------- GSB_MODE : Realtime GSB_LTA : 8 GSB_ACQ_BW : 33.333333 GSB_FINAL_BW : 0 GSB_EDGE_FRQ : 0 GSB_CHAN_MAX : 256 GSB_CHAN_NUM : 0:255:1 GSB_STOKES : Total_Intensity GSB_CNTRL : ONLINE GSB_FSTOP : ON GSB_BEAM_1 : OFF GSB_BEAM_2 : Volt GSB_GAINEQ : OFF GSB_BB_LO : 149:156 GSB_HOSTS : gsbm1_shivneri undefined : OFF undefined : 306 -------------------------------- 15:10:00 : Stopped command file due to node33 recording problem. 15:15:00 : Restarted command file. --------------------------------------------------------------- 15:45: - 16:08 : SUBA-4 problem, restarted suba4 and problem got solved. --------------------------------------------------------------- 16:08:00 : Restarted command file. 17:05:00 : Stopped command file and observing session over.