GTAC Observation Log 1. Date : 12/02/2020 2. Observation Sr. No. : 11890 3. Observer : Sumana Nandi, D.J. Saikia 4. Observer\'s Email : sumana1981@gmail.com, djs@ncra.tifr.res.in 5. Project Name : uGMRT observations of recently identified double-double radio galaxies 6. Project Code : 37_113 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd/37_113/s4.cmd 9. LTA File : /gsbifrdata1/12feb/37_113_12feb2020_gsb.lta, /gwbifrdata2/12feb/37_113_12feb2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/37_116.FLAGS.12 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 12 Feb 2020 00:00:00 - 12 Feb 2020 05:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :30 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 50.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 37_113 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 : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 00:00 : Started set up. 00:16 : Started scan on 3C286. 00:31 : Stopped scan and started command file. \'/odisk/gtac/cmd/37_113/s4.cmd\' 04:46 : Stopped command file. 04:47 : Started scan on 3C286. 05:02 : Stopped scan and observation session is over.