GTAC Observation Log 1. Date : 12/07/2020 2. Observation Sr. No. : 12209 3. Observer : Daniele Dallacasa, Ruta Kale, Daniel Ryan Wik, Qian Wang, Giacintucci Simona, Tiziana Venturi, Rossella Cassano, Gianfranco Brunetti 4. Observer\'s Email : daniele.dallacasa@unibo.it, ruta@ncra.tifr.res.in, wik@astro.utah.edu, qian.wang@live.com, simona.giacintucci@nrl.navy.mil, tventuri@ira.inaf.it, rcassano@ira.inaf.it, brunetti@ira.inaf.it 5. Project Name : Constraining the magnetic field at a very weak shock in the galaxy cluster PLCKG200.9-28.2 6. Project Code : 38_030 7. Operator(s) : Nilesh, Sachin 8. Command File : /odisk/gtac/cmd/38_030/38_030_12jul2020-b3.cmd 9. LTA File : /gsbifrdata1/12jul/38_030_12jul2020_gsb.lta, /gwbifrdata1/12jul/38_030_12jul2020_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , 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) : 306 306 255 255 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. S06 : : No fringe GWB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 12 Jul 2020 06:00:00 - 12 Jul 2020 14:10:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. Comments (During Observations) : 05:35 : Settings started. ------------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 : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 38_030 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 : 16 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : Voltage Detection GPU_BEAM_S : OFF -------------------------------- ---------------------------------------------------------------- # RFI FILTER SETTINGS HEADER GWB_VERSION : gwb3 # version of the gui FILTERED_SIGNALS : RFI_ALL # RFI_ALL=All signals filtered / RFI_CH1 =Channel 1 only / RFI_CH2=Channel 2 only EXTERNAL MEDIAN : 0 # integer value(-128 to 127) THRESHOLD VALUE : 4 # integer value(0 to 127) CONSTANT VALUE : 0 # integer value(-128 to 127) FILTERING OPTION : DIGITAL NOISE # BYPASS / CONSTANT=constant value is used / THRESHOLD / DIGITAL_NOISE DDC_STATUS : OFF # DDC = ON/OFF ---------------------------------------------------------------- 05:45 : Started power eq at 100 counts. 05:50 : Started scan on 3C147 for ~ 12 min. 06:05 : Started command file. /odisk/gtac/cmd/38_030/38_030_12jul2020-b3.cmd 11:50 : East arm power failure. 12:10 : East arm power resumed. 14:10 : Took 10 mins on 3C286 and closed observation session.