Explanatory Supplement to the WISE Preliminary Data Release Products

Details Explanatory Supplement to the WISE Preliminary Data Release Products Explanatory Supplement to the WISE Preliminary Data Release Products

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011wise.rept....1c&link_type=abstract

Explanatory Supplement to the WISE Preliminary Data Release Products

Astronomy and Astrophysics

Astronomy

1

Infrared Astronomy, Infrared Sources, Surveys, Space Observatories, Catalogs, Manuals

Scientific paper

The Wide-field Infrared Survey Explorer (WISE; Wright et al. 2010) surveyed the entire sky at 3.4, 4.6, 12 and 22 microns in 2010, achieving 5-sigma point source sensitivities per band better than 0.08, 0.11, 1 and 6 mJy in unconfused regions on the ecliptic. The WISE Preliminary Data Release, conducted on April 14, 2011, incorporates data covering the first ~57% of the sky surveyed that were processed with initial calibrations and reduction algorithms. Release data products include: (1) an Atlas of 10,464 sets of calibrated, coadded images, depth-of-coverage and uncertainty maps in the four WISE bands, (2) a Source Catalog containing positions and four-band photometry for 257 million objects, and (3) an Explanatory Supplement. Ancillary products include an archive of 754,000 sets of calibrated WISE single-exposure images, uncertainty and bit-mask maps, and a database of 2.2 billion source extractions made from the single-exposure images, and moving object tracklets identified by the NEOWISE program (Mainzer et al. 2011).
The Explanatory Supplement to the WISE Preliminary Data Release Products is a general guide for users of the WISE data. The Supplement contains an overview of the WISE mission, facilities, and operations, a description of the contents and formats of the WISE image and tabular data products, and cautionary notes that describe known limitations of the Preliminary Release products. Instructions for accessing the WISE data products via the services of the NASA/IPAC Infrared Science Archive are provided. Detailed descriptions of the data processing system and algorithms used to ingest and convert raw WISE data to the calibrated data products are presented, along with assessments of the achieved sky coverage, photometric and astrometric characteristics and completeness and reliability of the Preliminary Release data products.
The WISE Preliminary Release Explanatory Supplement is an on-line document that is updated frequently to provide the most current information for users of the WISE data products. The Explanatory Supplement is maintained at:
http://wise2.ipac.caltech.edu/docs/release/prelim/expsup/wise_prelrel_toc.html
WISE is a joint project of the University of California, Los Angeles and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. NEOWISE is a project of the Jet Propulsion Laboratory/California Institute of Technology, funded by the Planetary Science Division of the National Aeronautics and Space Administration.

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