GTAC Observation Log 1. Date : 15/03/2020 2. Observation Sr. No. : 11980 3. Observer : Tasha Gautam, Paulo Cesar Freire, Alessandro Ridolfi, Yashwant Gupta 4. Observer\'s Email : tgautam@mpifr-bonn.mpg.de, pfreire@mpifr-bonn.mpg.de, alessandro.ridolfi@inaf.it, ygupta@ncra.tifr.res.in 5. Project Name : Follow up observations for pulsar candidates in globular clusters 6. Project Code : 37_016 7. Operator(s) : Deepak, Navnath, Shilpa 8. Command File : /odisk/gtac/cmd/37_016/15mar2020/obs.cmd 9. LTA File : /gsbifrdata1/15mar/37_016_15mar2020_gsb.lta, /gwbifrdata2/15mar/37_016_15mar2020_b4.lta 10. LogFlag File : /odisk/online1/logflags/37_016.FLAGS.6 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 : 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) : 591 591 540 540 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 : : Mech Maintenance C06 : : Painting Work 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Mar 2020 08:00:00 - 15 Mar 2020 11:30:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : Pulsar Data Files on GWBH7 : /data3/gpuuser/37_016_data3_15mar2020/* GWBH8 : /data3/gpuuser/37_016_data3_15mar2020/* ------------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 : 37_016 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 : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 Total=12 # BEAM-1:175 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 Total=12 # BEAM-2:130 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 Total=12 # BEAM-2:175 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 Total=12 -------------------------------------------------------------------------- 08:00 : Started settings. 08:18 : Power equalized and phasing done on 1822-096. 08:20 : \'/odisk/gtac/cmd/37_016/15mar2020/obs.cmd\' command file started. 09:25 : Electrical Power failure for all ants. So stopped command file and stopped pulsar recording. 09:40 : Scan no. 6,7,8,9 are bad. 09:50 : C01 shows low fringe, so removed from GAC. W02 abc timeout. 09:57 : Restarted command file. 11:30 : Stopped command file and observing session over. -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 Total=11 # BEAM-1:175 :: C00 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 Total=11 # BEAM-2:130 :: C00 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 Total=11 # BEAM-2:175 :: C00 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 Total=11 --------------------------------------------------------------------------