GTAC Observation Log 1. Date : 12/02/2024 2. Observation Sr. No. : 16376 3. Observer : Nissim Kanekar, Aditya Chowdhury, Balpreet Kaur, Jayaram Narayanan Chengalur 4. Observer\'s Email : nkanekar@ncra.tifr.res.in, chowdhury@ncra.tifr.res.in, bkaur@ncra.tifr.res.in, chengalur@ncra.tifr.res.in 5. Project Name : %latex% An Ultra-Deep GMRT Band-4 HI 21cm Emission Survey of Galaxies in the COSMOS field 6. Project Code : 45_127 7. Operator(s) : Navnath, Nilesh, Pramod 8. Command File : /data1/gtac/cmd/45_127/45_127_11Feb2024_2000_cmd.py 9. LTA File : /gsbifrdata1/11feb/45_127_11feb2024_b4_gsb.lta, /gwbifrdata2/11feb/45_127_11feb2024_b4_gwb.lta 10. LogFlag File : 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,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 : 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 : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 11 Feb 2024 20:00:00 - 12 Feb 2024 05:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :30 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 16384 GPU_CHAN_NUM : 0:16383:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 45_127 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 : 4 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 -------------------------------- 20:00 : Started set up. 20:11 : Started command file. \'/data1/gtac/cmd/45_127/45_127_11Feb2024_2000_cmd.py\' #scan 20 : bad 05:10:00 : Observation session close.d