I.4. The Top Ten (or so) Things You Should Know About the AllWISE Data Products
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- The W1 and W2 photometric sensitivity of the AllWISE Image Atlas and
Source Catalog is better than in the WISE All-Sky Release products
- The astrometric accuracy of the AllWISE Source Catalog is improved
relative to the All-Sky Release Catalog (II.5).
- The AllWISE Source Catalog and Reject Table contain measurements
of apparent motion for most sources (II.6)
- AllWISE Catalog and Reject Table motion measurements may be
influenced by parallax for nearby objects (II.6.b.i).
- The flux underestimation bias that affected
faint sources in the WISE All-Sky Release Catalog is greatly reduced in the
AllWISE Source Catalog (II.3).
- AllWISE Catalog sources brighter than W1<8 mag or W2<7 mag may
have better photometry available in the WISE All-Sky
Release Catalog (II.2.c.i).
- W1 flux uncertainties in the AllWISE
Catalog for sources that are covered by early 3-Band Cryo survey data
(45°<λ<55° and 230°<λ<239°)
may be elevated or missing entirely (II.2.c.ii).
- The AllWISE Catalog contains both point-like and extended objects
- Sources visible on the Atlas Image that are
not found in the AllWISE Catalog may be in the Reject Table
- The AllWISE Multiepoch Photometry Database contains light curves for
every source detection in the AllWISE Catalog and Reject Table
- Many Multiepoch Photometry Database flux
measurements are upper limits because the objects are fainter than
Single-exposure detection limit (III.2.b).
- The AllWISE Atlas and Catalog depth-of-coverage
for 73 Tiles closest to the ecliptic poles is artificially attenuated to
~165 frames per point, even though many more Single-exposures were
Last update: 22 November 2013