GTAC Observation Log 1. Date : 04/07/2021 2. Observation Sr. No. : 13267 3. Observer : Yogesh Maan, BHAL CHANDRA JOSHI, Mayuresh Surnis, Manjari Bagchi, Krishnakumar MA 4. Observer\'s Email : ymaan4@gmail.com, bcj@ncra.tifr.res.in, mayuresh.surnis@mail.wvu.edu, manjari.bagchi@gmail.com, kk.ambalappat@gmail.com 5. Project Name : Low-frequency monitoring of the Magnetar XTE 1810-197 6. Project Code : 40_015 7. Operator(s) : Navnath 8. Command File : /data1/gtac/cmd/40_015/04jul/obs2.py 9. LTA File : /gwbifrdata2/04jul/40_015_04jul2021_band4_gwb.lta 10. LogFlag File : 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+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/TGC 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) : 591 591 540 540 51 51 30. Integration Time : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. W01 : and W05 : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Jul 2021 02:00:00 - 04 Jul 2021 03:11:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 725 725 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 40_015 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 64 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : ON GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 02:00:00 : Started setup. 02:09:13 : Started scan on 3C454 for ~ 2.058 min. 02:12:00 : Started cmd file. /data1/gtac/cmd/40_015/04jul/obs2.py 02:14:17 : Started scan on 3C454 for ~ 1.43165 min. 02:16:07 : Started scan on 3C454 for ~ 0.805306 min. 02:17:24 : Started scan on 3C454 for ~ 3.22122 min. 02:22:26 : Started scan on 3C454OFF for ~ 2.23696 min. 02:31:25 : Started scan on 1822-096 for ~ 1.43165 min. 02:33:20 : Started scan on 1822-096 for ~ 0.805306 min. 02:35:39 : Started scan on 1822-096 for ~ 2.14748 min. 02:39:38 : Started scan on J1809-1943 for ~ 20.2221 min. 03:02:44 : Started scan on B1929+10 for ~ 3.13174 min. 03:08:26 : Started scan on 1822-096 for ~ 2.058 min. 03:10:00 : Observation session over. -------------------------------------------------------- # 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 W02 Total=18 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W02 Total=18 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W02 Total=18 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W02 Total=18 -------------------------------------------------------- Note : Time required for observation : 71 min + setup time ------------------------------------------------------------