GTAC Observation Log 1. Date : 17/02/2019 2. Observation Sr. No. : 10899 3. Observer : Yogesh Maan, Bhal Chandra Joshi, Manjari Bagchi, Mayuresh Surnis, P. K. Manoharan 4. Observer's Email : ymaan4@gmail.com,bcj@ncra.tifr.res.in,manjari.bagchi@gmail.com,msurnis@gmail.com,mano.rac@gmail.com 5. Project Name : Low-frequency monitoring of the magnetar XTE J1810-197 6. Project Code : DDTC44 7. Operator(s) : Nilesh, Sachin 8. Command File : /odisk/gtac/cmd 9. LTA File : /gwbifrdata2/17feb/ddtc44b_17feb2019_suba4_band4.lta, /gwbifrdata2/17feb/ddtc44a_17feb2019_suba3_band5.lta 10. LogFlag File : /odisk/online1/logflags/DDTC44B.FLAGS.4, /odisk/online1/logflags/DDTC44A.FLAGS.4 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_lenyadri 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) : 591 591 540 540 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C02 : : Mechanical work. S02 : : Mechanical work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 17 Feb 2019 10:15:00 - 17 Feb 2019 13:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 10:10 : 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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF3 : 1460 1460 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : DDTC44A GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : DDTC44B GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : PA GPU_BEAM_3 : PA 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 :: Total=0 # BEAM-1:175 :: Total=0 # BEAM-2:130 :: C00 C04 E02 E03 S01 W01 W02 Total=7 # BEAM-2:175 :: C00 C04 E02 E03 S01 W01 W02 Total=7 # BEAM-3:130 :: C01 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=11 # BEAM-3:175 :: C01 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=11 # BEAM-4:130 :: Total=0 # BEAM-4:175 :: Total=0 10:40:27 : Started scan on 1822-096 for ~ 1.11848 min. 10:41:51 : Started scan on 1822-096 for ~ 0.894784 min. 10:44:30 : Started scan on B1742-30 for ~ 2.32644 min. 10:48:04 : Started scan on J1809-1943 for ~ 40.3548 min. 11:29:42 : Started scan on 1822-096 for ~ 1.07374 min. 11:31:04 : Started scan on 1822-096 for ~ 1.29744 min. 11:33:39 : Started scan on J1809-1943 for ~ 40.5337 min. 12:15:29 : Started scan on 1822-096 for ~ 1.11848 min. 12:16:54 : Started scan on 1822-096 for ~ 0.894784 min. 12:19:02 : Started scan on J1809-1943 for ~ 20.2669 min. 12:46:30 : Started scan on 3C48 for ~ 1.07374 min. 12:47:55 : Started scan on 3C48 for ~ 0.894784 min. 12:49:05 : Started scan on 3C48 for ~ 1.83431 min. 12:52:06 : Started scan on 3C48OFF for ~ 1.83431 min. 12:55 : stopped command file and observation over.