GTAC Observation Log 1. Date : 06/01/2021 2. Observation Sr. No. : 12772 3. Observer : Catherine Witherspoon, Eric Wilcots 4. Observer\'s Email : witherspoon@astro.wisc.edu, ewilcots@astro.wisc.edu 5. Project Name : Neutral Hydrogen Gas in Low-Mass Galaxies Hosting AGN 6. Project Code : 39_055 7. Operator(s) : Navnath 8. Command File : /odisk/gtac/cmd/39_055/obs.cmd 9. LTA File : /gsbifrdata/06jan/39_055_06jan2020_gsb.lta, /gwbifrdata1/06jan/39_055_06jan2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/39_055.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1399 MHz ,RF2 : 1399 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1450 MHz, ILO2 : 1450MHz , 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 : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1399 1399 1450 1450 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. W03 : : servo brakes. C06 : fps problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 06 Jan 2021 00:00:00 - 06 Jan 2021 05:20:00 35. ONLINE Machine : Shivneri 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 : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_055 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 GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 00:00:00 : Started setup in TGC. 00:00:45 : no fringe in GWB for one pol for all ant. : tried Restarting Corr chain in TGC. : corr init giving problem : gwb dataserver got killed. : Switched to ONLINE. 01:00:00 : Started setup in ONLINE. 01:12:40 : Started scan on 3C147. 01:23:32 : Started cmd file. /odisk/gtac/cmd/39_055/obs.cmd 05:15:00 :00 : Observation session over. -------------------------------------