List of Figures

Figure 1.1: COS FUV Spectral Resolution Depends on Lifetime Position.
Figure 1.2: Grating Offset Positions (FP-POS).
Figure 1.3: The COS Optical Path and the Locations of the Mechanisms.
Figure 1.4: The COS FUV Optical Path.
Figure 1.5: The COS NUV Optical Path (spectroscopic only).
Figure 1.6: The FUV XDL Detector.
Figure 1.7: COS FUV Stim Pulse.
Figure 1.8: Example of a COS FUV Spectrum.
Figure 1.9: Example of a COS FUV Pulse Height Distribution at different times.
Figure 1.10: Example of a COS NUV Spectrum.
Figure 1.11: COS Coordinate Systems.
Figure 2.1: FITS Image Extension File for COS.
Figure 2.2: Overlay of FUV ACCUM Subarrays on FUV TIME-TAG Data.
Figure 2.3: FITS File Format for Raw and Corrected TIME-TAG Tables.
Figure 2.4: FITS Array Extension File for COS.
Figure 2.5: FITS File Format for Lampflash Table.
Figure 2.6: FITS File Format for 1-D Extracted Spectrum Table.
Figure 2.7: COS Support File.
Figure 2.8: FITS File Format for ACQ/SEARCH and ACQ/PEAKD Data.
Figure 2.9: FITS File Format for ACQ/IMAGE Data.
Figure 2.10: FITS File Format for Jitter Data.
Figure 2.11: FITS File Format for Jif Data.
Figure 3.1:  FUV TIME-TAG Spectroscopic Pipeline Flow Chart (TWOZONE).
Figure 3.2:  FUV TIME-TAG Spectroscopic Pipeline Flow Chart (BOXCAR).
Figure 3.3: FUV ACCUM Spectroscopic Pipeline Flow Chart.
Figure 3.4: NUV TIME-TAG Spectroscopic Pipeline Flow Chart.
Figure 3.5: NUV ACCUM Spectroscopic Pipeline Flow Chart.
Figure 3.6: NUV Image Pipeline Flow Chart.
Figure 3.7: A Map of the FUV Geometric Correction.
Figure 3.8: FUV and NUV Deadtime.
Figure 3.9: Flat-field Images of the NUV MAMA Detector.
Figure 3.10: Spectral Trace Locations.
Figure 3.11: TRCECORR Reduction Step.
Figure 3.12: ALGNCORR Reduction Step.
Figure 3.13: The FUV Flat Field.
Figure 3.14: FUV Extraction Regions.
Figure 3.15: FUV Background Extraction Regions.
Figure 3.16: NUV Background Extraction Regions.
Figure 3.17: 2-D Reference Profile for G140L/1280.
Figure 3.18: 2-D Reference Profile for G130M/1291.
Figure 3.19: 2-D Reference Profile for G160M/1577.
Figure 4.1: Dark Rates.
Figure 4.2: FUVA Dark.
Figure 4.3: FUVB Dark.
Figure 4.4: Gain Sag Effects.
Figure 5.1: Example of an ACQ/SEARCH Exposure.
Figure 5.2: Example of an Image Using the PSA and MIRRORB.
Figure 5.3: BOA and MIRRORA (left), and the BOA and MIRRORB (right).
Figure A.1: Location of the Lifetime Positions on Segment B.