GTAC Observation Log 1. Date : 06/08/2021 2. Observation Sr. No. : 13368 3. Observer : Scott Hyman, Giacintucci Simona, N. Kassim, Dale A Frail, Jason E Kooi, Joseph Lazio, Julia Deneva, Emil Polisensky, Joseph Helmboldt 4. Observer\'s Email : shyman@sbc.edu, simona.giacintucci@nrl.navy.mil, kassim@nrl.navy.mil, dfrail@nrao.edu, jason.kooi@nrl.navy.mil, Joseph.Lazio@jpl.nasa.gov, julia.deneva@gmail.com, emil.polisensky@nrl.navy.mil, joseph.helmboldt@nrl.navy.mil 5. Project Name : Mysterious Steep Spectrum Radio Sources Towards the Galactic Bulge 6. Project Code : 40_055 7. Operator(s) : Deepak, Sachin 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/05aug/40_055_05aug2021_gsb.lta.1, /gsbifrdata/05aug/40_055_05aug2021_gsb.lta, /gwbifrdata/05aug/40_055_05aug2021_gwb.lta.2, /gwbifrdata/05aug/40_055_05aug2021_gwb.lta.1, /gwbifrdata/05aug/40_055_05aug2021_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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 05 Aug 2021 21:00:00 - 06 Aug 2021 00:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :29 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF1 : 1460 1460 GPU_DDCLO1 : 540.000000 540.000000 GPU_SB1 : 1 1 GCODE1 : SUBA1 GPU_RF2 : 1200 1200 GPU_DDCLO2 : 0.000000 0.000000 GPU_SB2 : 1 1 GCODE2 : SUBA2 GPU_RF3 : 1460 1460 GPU_DDCLO3 : 0.000000 0.000000 GPU_SB3 : 1 1 GCODE3 : SUBA3 GPU_RF4 : 470 470 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : SUBA4 GPU_RF5 : 1060 1060 GPU_DDCLO5 : 0.000000 0.000000 GPU_SB5 : 1 1 GCODE5 : SUBA5 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 : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED -------------------------------- 21:09 : Setup completed. 21:11 : Started command file. 21:11:24 : Started scan on 3C286 for ~ 8.27675 min. 21:20 : GWB acq killed since 8k channel and LTA 4 combination is not permissible weight. So looked 3rd aug setup and changed lta to 8 21:35 : AGN1 for GwB hung. 21:42 : Started command file. 00:00 : Observation session over. ---------------------------------------------