GTAC Observation Log 1. Date : 12/09/2020 2. Observation Sr. No. : 12410 3. Observer : Kristina Nyland, Dillon Dong, Sumit Sarbadhicary, Pallavi Patil, Preshanth Jagannathan, Mark Lacy, Dipanjan Mukherjee, Giacintucci Simona, N. Kassim, Vivienne Baldassare 4. Observer\'s Email : knyland@nrao.edu, ddong@caltech.edu, sarbadhi@msu.edu, pallavi3291@gmail.com, pjaganna@nrao.edu, mlacy@nrao.edu, dipanjan@iucaa.in, simona.giacintucci@nrl.navy.mil, kassim@nrl.navy.mil, vivienne.baldassare@yale.edu 5. Project Name : Radio SED Modeling of Compact AGN with Extreme Radio Variability 6. Project Code : 38_040 7. Operator(s) : Sachin 8. Command File : /odisk/gtac/cmd/38_040/12sep.cmd 9. LTA File : /gsbifrdata1/12sep/38_040_12sep2020_gsb.lta, /gwbifrdata1/12sep/38_040_12sep2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_040.FLAGS.16 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 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 : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. W01 MCM 5 problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 12 Sep 2020 10:00:00 - 12 Sep 2020 13:00:00 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 : 2 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF1 : 1460 1460 GPU_DDCLO1 : 540.0000 540.0000 GPU_SB1 : 1 1 GCODE1 : SUBA1 GPU_RF2 : 1200 1200 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : SUBA2 GPU_RF3 : 1460 1460 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : SUBA3 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 38_040 GPU_RF5 : 1060 1060 GPU_DDCLO5 : 0.0000 0.0000 GPU_SB5 : 1 1 GCODE5 : SUBA5 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 : ON GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 10:15:02 : Started scan on 3C286 for ~ 8.6794 min. 10:34:04 : Started command file. 12:44 : Stopped command file and took phase cal for 5 mins. 12:45:04 : Started scan on 3C286 for ~ 12.6165 min. 13:00 : Stopped scan on 3C286 and closed observation session.