Focas Automatic Catalog Matching Algorithms

  title={Focas Automatic Catalog Matching Algorithms},
  author={Francisco G. Valdes and Luis E. Campusano and Juan D. Vel and Peter B. Stetson},
This paper describes eecient algorithms that automatically take two or more catalogs of objects with instrumental coordinates and magnitudes and matches them. The challenges are that the instrumental coordinates may be only partially overlapping, at a diierent scale, rotated, or even inverted ((ipped). The object magnitudes may be derived from diierent passbands so that the relative magnitudes of the objects diier. Also, the catalog may not contain all the same objects due to diierences in… CONTINUE READING

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FOCAS Users's Guide, NOAO document

  • F. Valdes
  • 1993
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Faint Object Classi cation and Analysis System, NOAO document

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  • 1982
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