GTAC Observation Log 1. Date : 02/10/2020 2. Observation Sr. No. : 12481 3. Observer : Yali Shao 4. Observer\'s Email : yshao@mpifr-bonn.mpg.de 5. Project Name : Low-frequency radio properties of 11 radio-loud quasars at z > 5 6. Project Code : 38_069 7. Operator(s) : Shilpa, Shriram 8. Command File : /odisk/gtac/cmd/38_069/02oct2020/obs.cmd 9. LTA File : /gsbifrdata1/02oct/38_069_02oct2020_gsb.lta, /gwbifrdata2/02oct/38_069_02oct2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_069.FLAGS 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 : 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) : 306 306 255 255 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. S04 : Mechanical Work E04 : Maintenance E06 : Feed jam 33. Note for Backup : 34. Start and End Time of Obs.(IST): 02 Oct 2020 04:00:00 - 02 Oct 2020 05:20:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : Satellite RFI of satellite SICRAL observed on Source J0131-03 throughout observation 38. Comments (During Observations) : ------------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 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 38_069 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 128 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------------------------------------------------- 03:40 : Started settings. 03:52 : Started scan on 3C48 ~ 8 min. 04:01 : Started command file, \'/odisk/gtac/cmd/38_069/02oct2020/obs.cmd\' 04:58 : S02 not tracking properly. 04:58 : Skynet satellite RFI. 05:04 : S02 started working. 05:09 : Stopped command file. 05:12 : Started scan on 3C48 ~ 8 min. 05:20 : Scan stopped and observing session over. --------------------------------------------------------------------------