GTAC Observation Log 1. Date : 16/07/2017 2. Observation Sr. No. : 9575 3. Observer : M Chakraborty 4. Observer's Email : manoneeta@iiti.ac.in 5. Project Name : Radio monitoring of the recent outburst of the transient low mass X-ray binary neutron star Aquila X-1 6. Project Code : DDTB279 7. Operator(s) : Rupsing 8. Command File : /odisk/gtac/cmd/ddtb279/obs.cmd 9. LTA File : /gsbifrdata1/16jul/ddtb279_16jul2017.lta, /gwbifrdata/16jul/ddtb279_16jul2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/DDTB279.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 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) : 1371 1371 1320 1320 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : E04 : Servo problem. W01 : Very low fringe. W03 : Strong RFI. W06 : Low fringe @130 33. Note for Backup : 34. Start and End Time of Obs.(IST): 16 Jul 2017 01:10:00 - 16 Jul 2017 03:20:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :26 37. 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 : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : DDTB279 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 128 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF ------------------------------------------------------------------------- 01:21 : Started scan on 3C48. 01:31 : Stopped scan. 01:38 : Started command file. 02:59 : Stopped command file 02:05 : Started scan on 3C48 02:15 : Stopped scan and observation closed.