GTAC Observation Log 1. Date : 25/06/2020 2. Observation Sr. No. : 12146 3. Observer : Virginia Cuciti, Rossella Cassano, Ruta Kale, Andrea Botteon, Francesco de Gasperin, Ignesti, Marcus Bruggen, Gianfranco Brunetti, Reinout Johannes vanWeeren, Shimwell 4. Observer\'s Email : vcuciti@hs.uni-hamburg.de, rcassano@ira.inaf.it, ruta@ncra.tifr.res.in, botteon@strw.leidenuniv.nl, fdg@hs.uni-hamburg.de, alessandro.ignesti2@unibo.it, mbrueggen@hs.uni-hamburg.de, brunetti@ira.inaf.it, rvweeren@strw.leidenuniv.nl, shimwell@strw.leidenuniv.nl 5. Project Name : A systematic spectral study of diffuse radio emission in galaxy clusters with the uGMRT and LOFAR 6. Project Code : 38_025 7. Operator(s) : Surender 8. Command File : /odisk/gtac/cmd/38_025/38_025_s20.cmd 9. LTA File : /gsbifrdata1/25jun/38_025_25jun2020_gsb.lta, /gwbifrdata1/25jun/38_025_25jun2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_025.FLAGS 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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C00 : : No fringe. C03 : : Taken for Mech work. C12 : : Servo Problem. S02 : : ABC time-out. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 25 Jun 2020 18:00:00 - 25 Jun 2020 23:00:00 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 : 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_025 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 : Voltage Detection GPU_BEAM_S : OFF ------GWB RFI Filter Setting----- 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 ---------------------------------------------------------------- 18:00:00 : Started set-up. 18:03:45 : Started command file. 18:40:00 : S02 released for observation. /odisk/gtac/cmd/38_025/38_025_s20.cmd 23:00:00 : Stopped command file and observing session over. ---------------------------------------------------------------