GTAC Observation Log 1. Date : 03/11/2019 2. Observation Sr. No. : 11556 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 : 37_102 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd/37_102/p37_102_03nov2019.cmd.txt 9. LTA File : /gwbifrdata1/03nov/37_102_band5_03nov2019_gwb.lta, /gwbifrdata1/03nov/37_102_band4_03nov2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.3350, /odisk/online1/logflags/37_102B.FLAGS, /odisk/online1/logflags/37_102A.FLAGS 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 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 : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C04 : Taken for mechanical work E03 : GAB problem 33. Note for Backup : 34. Start and End Time of Obs.(IST): 03 Nov 2019 15:00:00 - 03 Nov 2019 17:05:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 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 : 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 : 37_102A GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 37_102B 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 : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF ----------------- 15:00 : Started set up. 15:15 : Split the antennas as follows. # suba 3 # Band 5 ante 8 7 3 8 13 17 18 26 27 cp 0;defs 3;subar 3 # sub 4 # Band 4 # C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 W03 W04 W05 W06 E04 E05 E06 S03 S04 S06 ante 22 6 5 1 19 20 24 4 12 9 2 11 10 14 15 16 25 21 22 23 28 29 30 cp 0;defs 4;subar 4 15:30 : Power equalized done on 1822-096. 15:35 : Select GAC as follows. -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: Total=0 # BEAM-1:175 :: Total=0 # BEAM-2:130 :: C00 E02 S01 S02 W01 W02 Total=6 # BEAM-2:175 :: C00 E02 S01 S02 W01 W02 Total=6 # BEAM-3:130 :: C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=12 # BEAM-3:175 :: C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=12 # BEAM-4:130 :: Total=0 # BEAM-4:175 :: Total=0 15:40 : Started command file. '/odisk/gtac/cmd/37_102/p37_102_03nov2019.cmd.txt' 17:00 : Stopped command file and observation session is over.