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I. Introduction

I.4. The Top Ten (or so) Things You Should Know About the AllWISE Data Products

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  1. The W1 and W2 photometric sensitivity of the AllWISE Image Atlas and Source Catalog is better than in the WISE All-Sky Release products (II.3.a).

  2. The astrometric accuracy of the AllWISE Source Catalog is improved relative to the All-Sky Release Catalog (II.5).

  3. The AllWISE Source Catalog and Reject Table contain measurements of apparent motion for most sources (II.6)

  4. AllWISE Catalog and Reject Table motion measurements may be influenced by parallax for nearby objects (II.6.b.i).

  5. 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).

  6. 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).

  7. 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).

  8. The AllWISE Catalog contains both point-like and extended objects (II.2.b).

  9. Sources visible on the Atlas Image that are not found in the AllWISE Catalog may be in the Reject Table (II.2.c.ii).

  10. The AllWISE Multiepoch Photometry Database contains light curves for every source detection in the AllWISE Catalog and Reject Table (III.1).

  11. Many Multiepoch Photometry Database flux measurements are upper limits because the objects are fainter than Single-exposure detection limit (III.2.b).

  12. 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 acquired (V.3.a).

Last update: 22 November 2013

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