GTAC Observation Log 1. Date : 15/01/2022 2. Observation Sr. No. : 13858 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 : 41_034 7. Operator(s) : Deepak, Navnath, Nilesh, Sachin 8. Command File : /data1/gtac/cmd/41_034/41_034_14Jan2022_1500_cmd.py 9. LTA File : /gsbifrdata/14jan/41_034_14jan2022_gsb.lta, /gwbifrdata/14jan/41_034_14jan2022_gwb.lta.1, /gwbifrdata/14jan/41_034_14jan2022_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1334.1301 MHz ,RF2 : 1334.1301 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1270 MHz, ILO2 : 1270MHz , IVLO1 : 64.1301 MHz, IVLO2 : 64.1301 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 6 MHz,ON, IF-CH2 : 4+14 dB, 6 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 : 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) : 1334.1301 1334.1301 1270 1270 64.1301 64.1301 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C09 : : Servo Off mode. C00 : : Servo brakes. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 14 Jan 2022 15:00:00 - 14 Jan 2022 23:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :29 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 100.0000 GPU_FINAL_BW : 100 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1330 1330 GPU_DDCLO4 : 0.000000 0.000000 GPU_SB4 : 1 1 GCODE4 : 41_034 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 : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED -------------------------------- 15:30:00 : Started setup. 15:53:35 : Started scan on 3C48 for ~ 10.7374 min. 16:05:00 : Started cmd file. /data1/gtac/cmd/41_034/41_034_14Jan2022_1500_cmd.py 00:00 : Stopped command file and observation session is over.