GTAC Observation Log 1. Date : 03/04/2023 2. Observation Sr. No. : 15306 3. Observer : Alastair Edge, Ruta Kale, Brian Robert McNamara, Tom Rose, Helen Russell, Raymond Oonk, Marcus Halson, Massimo Gaspari 4. Observer\'s Email : alastair.edge@durham.ac.uk, ruta@ncra.tifr.res.in, mcnamara@uwaterloo.ca, tom.rose06@gmail.com, helen.russell@nottingham.ac.uk, oonk@strw.leidenuniv.nl, mdhalson@gmail.com, massimo.gaspari@inaf.it 5. Project Name : Constraining the cold accretion onto the most massive Black Holes 6. Project Code : 43_050 7. Operator(s) : Nilesh, Pramod, Shilpa, Surender 8. Command File : /data1/gtac/cmd/43_050/43_050_02Apr2023_2100_cmd.py 9. LTA File : /gsbifrdata1/02apr/43_050_02apr2023_b5_gsb.lta, /gwbifrdata2/02apr/43_050_02apr2023_b5_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1286 MHz ,RF2 : 1286 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1235 MHz, ILO2 : 1235MHz , 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/TGC 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) : 1286 1286 1235 1235 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C02 : FPS Problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 02 Apr 2023 20:35:00 - 03 Apr 2023 06:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. Comments (During Observations) : 20:30 : Started settings. ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 100 GPU_FINAL_BW : 25 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : -1 -1 GPU_RF4 : 1340 1340 GPU_DDCLO4 : 24.380000 24.380000 GPU_SB4 : -1 -1 GCODE4 : 43_050 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 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_WALSH : OFF GPU_ENV : RELEASED -------------------------------- Backend : GSB ; PROJECT : 43_050 ; TPA : 1286 1286 1235 1235 51 51 Backend : GWB ; PROJECT : 43_050 ; TPA : 1315.62 1315.62 -1340.0 -1340.0 24.38 24.38 20:55 : Started command file. /data1/gtac/cmd/43_050/43_050_02Apr2023_2100_cmd.py 05:30 : S02 No fringe. 06:00 : Stopped command file and observation over.