GTAC Observation Log 1. Date : 11/12/2017 2. Observation Sr. No. : 9945 3. Observer : Sravani Vaddi, Preeti Kharb, Chris O`Dea, Ruth Daly, Stefi Alison Baum 4. Observer's Email : sravani.vaddi@gmail.com, preeti.kharb@gmail.com, odea@cis.rit.edu, rad12@psu.edu, stefi_baum_80@post.harvard.edu 5. Project Name : Multi-frequency radio observations of winged double radio loud quasars 6. Project Code : 33_102 7. Operator(s) : Pramod, Rupsing, Surender 8. Command File : /odisk/gtac/cmd/33_102/obs1.cmd, /odisk/gtac/cmd/33_102/obs2.cmd 9. LTA File : /gsbifrdata1/11dec/33_102_11dec2017.lta, /gwbifrdata1/11dec/33_102_11dec2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/33_102.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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : E03 : Low fringe. E04 : Antenna reflector surface refurbishment work E06 : Antenna full painting 33. Note for Backup : 34. Start and End Time of Obs.(IST): 11 Dec 2017 09:00:00 - 11 Dec 2017 18:10:00 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 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 33_102 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 : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------------------------------------------------- 08:06 : Started scan on 3C286 08:16 : Stopped scan -------------------------------------------------------------------------- 08:18 : Started command file "/odisk/gtac/cmd/33_102/obs2.cmd" -------------------------------------------------------------------------- 10:30 : C00 taken for structural repairing work. -------------------------------------------------------------------------- 11:50 : Stopped command file. -------------------------------------------------------------------------- 11:52 : Started command file. "/odisk/gtac/cmd/33_102/obs2.cmd" 14:55 : Stopped command file and started new command file. '/odisk/gtac/cmd/33_102/obs3.cmd' 16:44 : C00 started working and hence taken for observation. 17:19 : E04 and E06 started working and hence taken for observation. 17:45 : Stopped command file. 17:49 : Started scan on 3C48. 18:00 : Stopped scan and observation session is over.