V. Atlas and Catalog Generation

4. Atlas and Catalog Test and Verification Regions

The WISE All-Sky Release Atlas and Catalog Generation processes were tested on a selection of large, contiguous regions of the sky before being run on the full cryogen survey data set. Table 1 contains a list of the 12 selected "Test and Verification" regions, with their approximate centers, a short description of the field attributes, and a link to the list of Atlas Tiles contained in each region. The regions were selected to sample a broad range of astrophysical environments that would exercise the Multiframe Pipeline processing and Catalog and Atlas Generation, and for which there was often ancillary data from other surveys. These test regions also provided data sets of significant size that were convenient for verifying WISE data product performance in different regions. References to these test regions can be found in several of the analyses presented in section VI.

Figures 1 and 2 show the location of the regions on the sky in equatorial and ecliptic projections, respectively. Five of the test regions contain Tiles that are in the area of the sky that was surveyed twice during the full cryogenic mission.

Most Test and Verification regions are comprised of 7x7 contiguous grid of Atlas Tiles, covering an area approximately 10°x10° on the sky. Region 1, which covers the south equatorial pole, consists of the 61 Tiles in the four southernmost declination bands.

Table 1 - WISE All-Sky Release Test and Verification Regions
Region Center Tile Number Center Tile Name Description Tile List

1 18237 1201m894 South equatorial pole

2 3974 0700p257 Ecliptic plane, complex field - Taurus

3 4709 2400p302 High galactic latitude - SDSS overlap

4 13393 0531m288 High galactic latitude - CDF-s

5 1977 1282p121 Low ecliptic latitude - M67

6 15766 2509m470 Galactic plane

7 7522 2425p545 ELAIS-N1 overlap

8 8294 3368p636 Low galactic latitude - Cepheus

9 5301 2174p348 High galactic latitude - NDWFS - Bootes overlap

10 338 1497p015 COSMOS overlap

11 16566 3523m546 SPT overlap

12 1 0000p000 Coordinate origin, Jupiter

**Table 1 -** WISE All-Sky Release Test and Verification Regions
Region	Center Tile Number	Center Tile Name	Description
1	18237	1201m894	South equatorial pole
2	3974	0700p257	Ecliptic plane, complex field - Taurus
3	4709	2400p302	High galactic latitude - SDSS overlap
4	13393	0531m288	High galactic latitude - CDF-s
5	1977	1282p121	Low ecliptic latitude - M67
6	15766	2509m470	Galactic plane
7	7522	2425p545	ELAIS-N1 overlap
8	8294	3368p636	Low galactic latitude - Cepheus
9	5301	2174p348	High galactic latitude - NDWFS - Bootes overlap
10	338	1497p015	COSMOS overlap
11	16566	3523m546	SPT overlap
12	1	0000p000	Coordinate origin, Jupiter

Figure 1 - Equatorial Projection Figure 2 - Ecliptic Projection

The blue boxes indicate the locations of the Tiles in the All-Sky Release Test and Verification Regions. The small green and red points denote the centers of all Atlas Tiles. Red points denote Tiles that are fully contained within the region of sky surveyed two complete times during the full cryogenic survey.

Last update: 2012 February 23


Figure 1 - Equatorial Projection	Figure 2 - Ecliptic Projection
The blue boxes indicate the locations of the Tiles in the All-Sky Release Test and Verification Regions. The small green and red points denote the centers of all Atlas Tiles. Red points denote Tiles that are fully contained within the region of sky surveyed two complete times during the full cryogenic survey.