GTAC Observation Log 1. Date : 22/02/2020 2. Observation Sr. No. : 11920 3. Observer : Sk Minhajur Rahaman, Rahul Basu, Dipanjan Mitra 4. Observer\'s Email : rahaman.minhajur93@gmail.com, rahulbasu.astro@gmail.com, dmitra@ncra.tifr.res.in 5. Project Name : Polarization study of single pulses of multiple component pulsars using GMRT Wideband Backend 6. Project Code : 37_055 7. Operator(s) : Deepak, Pramod, Rupsing, Shriram 8. Command File : /odisk/gtac/cmd/37_055/37_055_22feb20.cmd 9. LTA File : /gsbifrdata/22feb/37_055_22feb2020_gsb_b4.lta, /gsbifrdata1/22feb/37_055_22feb2020_gsb_b3.lta, /gwbifrdata1/22feb/37_055_22feb2020_gwb_b4.lta, /gwbifrdata2/22feb/37_055_22feb2020_gwb_b3.lta 10. LogFlag File : /odisk/online1/logflags/37_055B.FLAGS.5, /odisk/online1/logflags/37_055A.FLAGS.5 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+12 dB, 32 MHz,ON, IF-CH2 : 4+12 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 : Full_Stokes 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 : 2.0132 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): 22 Feb 2020 06:00:00 - 22 Feb 2020 14:40:00 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 : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 37_055A GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 32 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF ------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C03 C06 C12 C13 C14 E03 E04 S02 S03 S04 W02 W03 Total=13 # BEAM-1:175 :: C00 C03 C06 C12 C13 C14 E03 E04 S02 S03 S04 W02 W03 Total=13 # BEAM-2:130 :: C01 C02 C04 C05 C08 C09 C10 E02 S01 W01 Total=10 # BEAM-2:175 :: C01 C02 C04 C05 C08 C09 C10 E02 S01 W01 Total=10 ------------------------------------------------------------------------- 07:45 : Power eq. and phasing on 3C286. ------------------------------------------------------------------------- 07:12 : Started scan on 3C286 for 10min ------------------------------------------------------------------------- 07:24 : Stopped scan. ------------------------------------------------------------------------- 07:30 : Started command file. \'/odisk/gtac/cmd/37_055/37_055_22feb20.cmd\' 14:25 : Stopped scan and observation session is over.