GTAC Observation Log 1. Date : 25/02/2020 2. Observation Sr. No. : 11930 3. Observer : Ruchika Seth, Omkar Suresh Bait 4. Observer\'s Email : ruchika@iucaa.in, omkar@ncra.tifr.res.in 5. Project Name : HI imaging of a highly star-forming galaxy group: NGC 3937 6. Project Code : 37_130 7. Operator(s) : Deepak, Nilesh, Rupsing, Shilpa 8. Command File : /odisk/gtac/cmd/37_130/24feb2020/obs.txt 9. LTA File : /gsbifrdata1/24feb/37_130_24feb2020_gsb.lta, /gwbifrdata/24feb/37_130_24feb2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.3498, /odisk/online1/logflags/37_130.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , 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) : 1371 1371 1320 1320 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) : W01 : : ABC timeout. S02 : : Strong Intermittent RFI. C08 : : Strong Intermittent RFI. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 24 Feb 2020 20:50:00 - 25 Feb 2020 07:00:00 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 : 4 GPU_ACQ_BW : 100.0000 GPU_FINAL_BW : 100.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1439 1439 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 37_130 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 -------------------------------------------------------------------------- 20:50 : Started settings. 21:13 : Started scan on 3C147 for ~ 10.3348 min. 21:34 : \'/odisk/gtac/cmd/37_130/24feb2020/obs.txt\' command file started. 06:40 : Stopped command file 06:45 : Started scan on 3C286 07:00 : Stopped scan and observation session over.