GTAC Observation Log 1. Date : 19/02/2021 2. Observation Sr. No. : 12914 3. Observer : Aditya Chowdhury, Nissim Kanekar, Jayaram Narayanan Chengalur 4. Observer\'s Email : chowdhury@ncra.tifr.res.in, nkanekar@ncra.tifr.res.in, chengalur@ncra.tifr.res.in 5. Project Name : The HI Mass of Galaxies at the Peak of the Epoch of Galaxy Assembly 6. Project Code : 39_077 7. Operator(s) : Deepak, Sachin, Shilpa, Shriram 8. Command File : /data1/gtac/cmd/39_077/cosmosa.py 9. LTA File : /gsbifrdata1/18feb/39_077_18feb2021_gsb.lta, /gwbifrdata/18feb/39_077_18feb2021_10s_gwb.lta, /gwbifrdata1/18feb/39_077_18feb2021_2s_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 271 MHz ,RF2 : 271 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 220 MHz, ILO2 : 220MHz , 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 : 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 : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 271 271 220 220 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. S06 : No fringe in GSB and GWB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 18 Feb 2021 22:00:00 - 19 Feb 2021 04:03:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 16384 GPU_CHAN_NUM : 0:16383:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 515 515 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_077 GPU_CNTRL : TGC GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : IA 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 : 16 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-4:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=28 # BEAM-4:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 W01 W02 W03 W04 W05 W06 Total=28 -------------------------------------------------------------------------- 22:00 : Started settings. 22:26 : Started scan 3C147 for ~10 min. 22:40 : Started command file, \'/data1/gtac/cmd/39_077/cosmosa.py\' -------------------------------------------------------------------------- 12:20 - 12:40 : broadband RFI. Muos 4 01:32 - 01:45 : Broadband RFI. Muos 4 -------------------------------------------------------------------------- 03:50 : Stopped command file. 03:51 : C05 LMC not pinging. 03:55 : Started scan on 3C286. 04:03 : Stopped scan and observing session over.