GTAC Observation Log 1. Date : 17/02/2021 2. Observation Sr. No. : 12911 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, Navnath, Nilesh, Sachin 8. Command File : /data1/gtac/cmd/39_077/16feb21/39_077_16feb.py 9. LTA File : /gsbifrdata1/16feb/39_077_16feb2021.lta, /gwbifrdata1/16feb/39_077_16feb2021_gwb_2.68sec.lta, /gwbifrdata2/16feb/39_077_16feb2021_gwb_10sec.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 : ONLINE/TGC 18. GSB Fstop : ON 19. GAIN EQ : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : Volt 23. ACQ BW : 16.666666 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 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. C09 : No fringe in both GSB and GWB. C14 : Ch2 Low fringe in GSB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 16 Feb 2021 20:00:00 - 17 Feb 2021 02:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 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 : 470 470 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 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=28 # BEAM-4:175 :: C00 C01 C02 C04 C05 C06 C08 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=28 ----------------------------------------------------------- 20:00:00 : Started setup. 20:27:30 : Started scan on 3C147 for ~ 5.90557 min. 20:34:05 : Started scan on 3C147 for ~ 8.32149 min. 20:48:14 : Started cmd file. /data1/gtac/cmd/39_077/16feb21/39_077_16feb.py 01:36:18 : Stopped command file. 01:37:45 : Started scan on 1041+027 for ~ 5.18975 min. **NOTE : THIS SCAN AFFECTED BY SATELLITE RFI. 01:49:04 : Started scan on 3C286 for ~ 11.0953 min. 02:00:00 : Stopped scan and observation closed.