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Published October 2004 | Published
Journal Article Open

Fast Direct Plane-to-Plane Coordinate Transformations

Makovoz, David

Abstract

A set of highly efficient coordinate transformations has been derived to convert between Cartesian coordinates in two different projection planes. The gain in execution speed is as great as a factor of 20 compared to the two‐step process of going from Cartesian coordinates in one plane to the celestial coordinates, and then to Cartesian coordinates in the second plane. The new coordinate transformations are successfully used by the Spitzer Space Telescope mosaicker MOPEX.

Additional Information

© 2004 Astronomical Society of the Pacific. Received 2004 June 9; accepted 2004 August 20; published 2004 October 5. This work was performed for the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. Support for this work was provided by NASA through an award issued by JPL/Caltech.

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Created:
August 19, 2023
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