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Image Quality

Image quality for a point source is characterized in terms of encircled energy/intensity vs. radius. Below, a table for each filter/detector combination links to a page on the instrument handbook that contains plots for encircled energy vs. radius and intensity vs. radius. Encircled energy tables and spatial profile plots for each mode can be found at section 13.5 of the Instrument Handbook.

Filter Encircled Energy/Intensity vs. Radius
Detector Filter
CCD Clear Long Pass OIII OII
MgII CN270
FUV-MAMA Clear Quartz SrF2 LyA


LAST UPDATED: 08/27/2021

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