GTAC Observation Log 1. Date : 22/05/2021 2. Observation Sr. No. : 13106 3. Observer : Visweshwar Ram Marthi, Dana Simard, Tim Sprenger, Robert Main, Olaf Wucknitz, Marten H vanKerkwijk, Ue Li Pen, Yashwant Gupta 4. Observer\'s Email : vrmarthi@ncra.tifr.res.in, dana.simard@astro.caltech.edu, tsprenger@mpifr-bonn.mpg.de, ramain@mpifr-bonn.mpg.de, wucknitz@mpifr-bonn.mpg.de, mhvk@astro.utoronto.ca, pen@cita.utoronto.ca, ygupta@ncra.tifr.res.in 5. Project Name : Extended Monitoring of the Peculiar Scattering of PSR B1508\\\\+55 6. Project Code : 40_079 7. Operator(s) : Navnath, Rupsing, Shilpa 8. Command File : /data1/gtac/cmd/40_079/21may/obs.py 9. LTA File : /gsbifrdata/21may/40_079_21may2021_gsb.lta, /gwbifrdata/21may/40_079_21may2021_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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 : OFF 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) : 1409 1409 1460 1460 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. W03 : Feed jam. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 May 2021 17:50:00 - 22 May 2021 03:30:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 16384 GPU_CHAN_NUM : 0:16383:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 40_079 GPU_CNTRL : TGC GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : IA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 32 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : ON GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W04 W05 W06 Total=28 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W04 W05 W06 Total=28 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W04 W05 W06 Total=28 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W04 W05 W06 Total=28 -------------------------------------------------------------------------- 17:50 : Started settings. 18:30 : Power equalized and phasing done on 3C286. 18:33 : \'/data1/gtac/cmd/40_079/21may/obs.py\' command file started. 20:15 : Started scan on J1438+6211 for ~ 32.682 min. : pulsar data was not recorded, only recorded visibility data. : script status problem. 20:45 : Command file stopped. Started manual phasing with Rantsol : phasing failed and phasing hung between phasing. : Manually killed ransol and restarted xtract phasing 20:55 : Started scan on 1400+621 for ~ 6.81154 min. : phasing second iteration started. 21:03 : Started scan on 1400+621 for ~ 5.63714 min. :phasing applied and started cmd file /data1/gtac/cmd/40_079/21may/obs1.py 21:05 : E05 LMC down. stopped pinging ofc and Lmc. : E05 removed from GAC. 21:10 :AGN1 hung due to E05 and Script hung. MNC script manager hung. 21:15 :Restarted AGN1 and removed E05 from AGN1. 21:20 : Restarted cmd file. /data1/gtac/cmd/40_079/21may/obs1.py 03:30 : Stopped command file and observation closed