GTAC Observation Log 1. Date : 03/01/2021 2. Observation Sr. No. : 12759 3. Observer : Andra Stroe, Lorenzo Lovisari, Scott W Randall, william richard forman, Christine Jones, Shimwell, Reinout Johannes vanWeeren, HIROKI AKAMATSU, Ralph Kraft, Grant Tremblay 4. Observer\'s Email : andra.stroe@cfa.harvard.edu, lorenzo.lovisari@cfa.harvard.edu, srandall@cfa.harvard.edu, wrf@cfa.harvard.edu, cjones@cfa.harvard.edu, shimwell@strw.leidenuniv.nl, rvweeren@strw.leidenuniv.nl, h.akamatsu@sron.nl, rkraft@cfa.harvard.edu, grant.tremblay@cfa.harvard.edu 5. Project Name : A spectacular LOFAR-selected merging galaxy cluster 6. Project Code : 38_062 7. Operator(s) : Deepak 8. Command File : /odisk/gtac/cmd/38_062/obs_03jan.cmd 9. LTA File : /gsbifrdata/03jan/38_062_03jan2021_gsb.lta, /gwbifrdata1/03jan/38_062_03jan2021_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_062.FLAGS.1 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 : Full_Stokes 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 : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 03 Jan 2021 03:00:00 - 03 Jan 2021 07:03:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 38_062 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 : 16 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 16 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 02:00 : Feed rotation to band3 03:04 : Started scan on 3C147 for 10mins. 03:15 : Started command file 06:45 : command file stopped. 06:50 : Started scan on 3C286 for 10mins. 07:00 : Observation stopped.