... efficiencies^12.1

Polarizer efficiency is defined as $\epsilon = (S_{\rm par} - S_{\rm perp})/(S_{\rm par} + S_{\rm perp})$, where $S_{\rm par}$ and $S_{\rm perp}$ are the respective measured signals for a polarizer oriented parallel and perpendicular to the axis of a fully polarized beam.

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... angle^12.2

Polarizer position angle as measured from the NICMOS Aperture Offset Angle of $224.52^{\circ}$, about the aperture center toward the +U3 axis.

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... IDL^14.1

IDL (Interactive Data Language) is an interactive analysis and visualization program written by Research Systems, Inc..

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... resolution.^21.1

Based on observations with the NASA/ESA Hubble Space Telescope obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555.

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