GTAC Observation Log 1. Date : 11/12/2020 2. Observation Sr. No. : 12664 3. Observer : Yogesh Maan, BHAL CHANDRA JOSHI, Mayuresh Surnis, Manjari Bagchi 4. Observer\'s Email : ymaan4@gmail.com, bcj@ncra.tifr.res.in, mayuresh.surnis@mail.wvu.edu, manjari.bagchi@gmail.com 5. Project Name : Low-frequency monitoring of the Magnetar XTE 1810-197 6. Project Code : 39_089 7. Operator(s) : Nilesh 8. Command File : /odisk/gtac/cmd/39_089/obs.cmd 9. LTA File : /gsbifrdata1/11dec/39_089_11dec2020_band3_gsb.lta, /gwbifrdata1/11dec/39_089_11dec2020_band3_gwb.lta.1, /gwbifrdata1/11dec/39_089_11dec2020_band3_gwb.lta 10. LogFlag File : /odisk/online1/logflags/39_089.FLAGS.5 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 : Mechanical Work. W04 : Mechanical work. S03 : Mechanical work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 11 Dec 2020 14:00:00 - 11 Dec 2020 15:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : 13:50 : Started settings. ------------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 : 1024 GPU_CHAN_NUM : 0:1023:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_089 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 16 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- NOTE : COMMAND FILE RECEIVED WAS WITH COMMAND SYNTAX ERRORS. TOOK TIME TO RESOLVE THEM. TRIED RESTARTING CMD FILE MULTIPLE TIMES. # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19 13:59:06 : Started scan on 1830-360 for ~ 2.01326 min. 14:01:34 : Started scan on 1830-360 for ~ 4.3397 min. 14:10:24 : Started scan on 1822-096 for ~ 1.78957 min. 14:13:06 : Started scan on 1822-096 for ~ 1.96852 min. 14:15:16 : Started scan on 1822-096 for ~ 1.16322 min. 14:17:28 : Started scan on 1822OFFOLD for ~ 1.16322 min. 14:20:37 : Started scan on 1822-096 for ~ 3.04227 min. 14:25:45 : Started scan on 1822OFFOLD for ~ 1.20796 min. 14:27:51 : Started scan on J1809-1943 for ~ 27 min. 14:55:32 : Started scan on B1822-09 for ~ 1.70009 min. 14:58:03 : Started scan on 1822-096 for ~ 1.92379 min. 15:00 : Stopped scan and observation closed.