GTAC Observation Log 1. Date : 20/10/2019 2. Observation Sr. No. : 11512 3. Observer : Joseph Russell Callingham, harish k vedantham, Shimwell, Ivey Davis 4. Observer's Email : callingham@astron.nl, vedantham@astron.nl, shimwell@strw.leidenuniv.nl, idavis97@unm.edu 5. Project Name : Confirming the first radio detections of exoplanets 6. Project Code : 37_041 7. Operator(s) : Deepak, Shilpa 8. Command File : /odisk/gtac/cmd/37_041/20oct2019/obs.cmd 9. LTA File : /gsbifrdata1/20oct/37_041_20oct2019_gsb.lta, /gwbifrdata/20oct/37_041_20oct2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/37_041.FLAGS 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+14 dB, 16 MHz,ON, IF-CH2 : 4+14 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 : Full_Stokes 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 : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :23 32. Name of Non-Working Antennas (with reason for each) : C03 : ABC timeout. C04 : Taken for mechanical work. C11 : No fringe in GWB. C12 : Strong RFI. E05 : No fringe in both GSB and GWB. S03 : No fringe in both GSB and GWB. W05 : Chksum error in GAB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 20 Oct 2019 04:00:00 - 20 Oct 2019 06:27:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :23 37. RFI Status : 38. Comments (During Observations) : Note : 1.3s integration not possible in full stokes, 200MHz bandwidth, 8k channels for GWB. Also for this setup 2.567s integration not possible in GWB. So taken 5s integration for GWB and 2s for GSB. ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 300 300 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 37_041 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 : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------------------------------------------------- 04:00 : Started settings. 04:20 : Started scan on 3C147 for ~ 10.9052 min. 04:34 : '/odisk/gtac/cmd/37_041/20oct2019/obs.cmd' command file started. 06:14 : Stopped command file. 06:19 : Started scan on 3C147. 06:27 : Stopped scan and observing session over.