GTAC Observation Log 1. Date : 15/06/2020 2. Observation Sr. No. : 12111 3. Observer : Yogesh Maan, BHAL CHANDRA JOSHI, Mayuresh Surnis, Manjari Bagchi 4. Observer\'s Email : maan@astron.nl, bcj@ncra.tifr.res.in, mayuresh.surnis@mail.wvu.edu, manjari.bagchi@gmail.com 5. Project Name : Continuing the multi-band low-frequency monitoring of the Magnetar XTE 1810-197 6. Project Code : 38_086 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd/38_086/p38_086_15june_0100.cmd.txt 9. LTA File : /gsbifrdata1/15jun/38_086_15jun2020_gsb.lta, /gwbifrdata2/15jun/38_086_15jun2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_086.FLAGS.7, /odisk/online1/logflags/38_086.FLAGS.6 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 : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Taken for mechanical work C11 and S03 : Feed jammed 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Jun 2020 01:00:00 - 15 Jun 2020 02:23:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :24 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 : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 38_086 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : PA 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 : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C12 C13 C14 E02 E03 W01 W02 Total=16 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C12 C13 C14 E02 E03 W01 W02 Total=16 00:47 : Started set up. 01:00 : Power equalized on 1822-096. From 01:04 to 01:27 : Tried Phasing on 1822-096.But Because of strong RFI, phasing was not proper.Finally because of less time, command file started around 01:29 Hrs. 01:10 : South arm power failure.Hence removed from GAC 01:10 : S04 applied brake. 01:29 : Started command file. \'/odisk/gtac/cmd/38_086/p38_086_15june_0100.cmd.txt\' 02:18 : Stopped command file and observation session is over.