I.4. Top 10 (or so) Things You Should Know About the NEOWISE Release Data Products
Click on the links below to learn more.
- The NEOWISE 2015 and 2016 Data Releases are comprised of data taken during the first and second year of the NEOWISE Reactivation mission, respectively, between 13 December 2013 and 13 December 2015 (I.2.c). The Year 1 and 2 data are concatenated into a single
archive so that all data may be queried easily at one time. (I.5)
- Because NEOWISE performs repeated observations of
each point on the sky, there are usually multiple, independent measurements
of solar system, galactic and extragalactic objects in the NEOWISE
Single-exposure Images and Source Database. (I.2.b.i)
- The NEOWISE Single-exposure Images are a resources for
solar system object precovery, recovery and analysis, as well as
for combining with original WISE mission Single-exposure images
to enable deeper detections for stationary objects.
- The NEOWISE Source Database is a time domain resource useful
for obtaining the positions and thermal fluxes of moving solar system objects,
as well as for studying the motions of nearby brown dwarfs and stars,
and the flux variability of all sources.
- The NEOWISE Data Release products consist of W1 (3.4 μm) and
W2 (4.6 μm) image and extracted source data only. NEOWISE does not collect
data in the W3 (12 μm) and W4 (22 μm) bands.
- The sensitivity of the NEOWISE W1 and W2 measurements are
similar to, but generally not quite as good as that of the data acquired
during the WISE Full Cryogenic survey phase.
- The NEOWISE Release includes all image and extracted
source information, regardless of the quality of the observations.
Use the quality information provided with image metadata and
individual entries in the Source Database to select the best quality
- Profile-fit photometry of bright, saturated
sources in the NEOWISE Single-exposure Source Database is
systematically brighter than measurements in the AllWISE and
All-Sky Release Catalogs, and the difference between them increases with
increasing source brightness.
- The NEOWISE Release
products include only the Single-exposure images and a database of
sources extracted from those images. The NEOWISE Single-exposure images
have not been coadded, nor has a deep inertial source Catalog been produced
from coadded images. (IV.1)
- NEOWISE Moving Object Tracklets are available from the
IAU Minor Planet
Center. The NEOWISE Single-exposure Images, Source Database and
ancillary tables are available from the
NASA/IPAC Infrared Science Archive.
Last update: 17 February 2016