GTAC Observation Log 1. Date : 29/01/2019 2. Observation Sr. No. : 10849 3. Observer : Benito Marcote, Joseph Russell Callingham 4. Observer's Email : marcote@jive.eu, callingham@astron.nl 5. Project Name : Unveiling the nature of the newly discovered and brightest non-thermal radio-emitting colliding wind binary 6. Project Code : 35_093 7. Operator(s) : Pramod, Rupsing, Sachin 8. Command File : /odisk/gtac/cmd/35_093/29jan19/obs_29jan19.cmd 9. LTA File : /gsbifrdata/29jan/35_093_29jan2019.lta, /gwbifrdata/29jan/35_093_29jan2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_093.FLAGS.2, /odisk/online1/logflags/35_045.FLAGS.11 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 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 : 16.666666 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 156 156 218 218 62 62 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C01 : Servo problem. C02 : Amplitude and phase variation. S04 : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 29 Jan 2019 06:00:00 - 29 Jan 2019 09:40:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 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 : 300 300 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 35_093 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 : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------------------------------------------------- 06:16 : Started scan on 3C286. 06:27 : Stopped scan. 06:32 : Started command file '/odisk/gtac/cmd/35_093/29jan19/obs_29jan19.cmd' -------------------------------------------------------------------------- 06:40 : Scan no.:1 is bad. -------------------------------------------------------------------------- 06:46 : Restarted command file. 09:11 : Stopped command file. 09:16 : Started scan on 3C286. 09:31 : Stopped scan and observation session is over.