Table · dataset · 2017
DECaLS DR3 color survey collection
Listed in IVOA Registry (Virtual Observatory)
The Legacy Survey is producing an inference model catalog of the sky from a set of optical and infrared imaging data, comprising 14,000 square deg of extragalactic sky visible from the northern hemisphere in three optical bands (g,r,z) and four infrared bands.
Description
The sky coverage is approximately bounded by -18deg %3C delta %3C +84deg in celestial coordinates and |b||b| > 18deg in Galactic coordinates. The DECam Legacy Survey is providing these data in the equatorial region at delta %3C +30deg using the Dark Energy Camera on the Blanco Telescope.
The color images are based on the g,r,z filters. Data Release 3 (DR3) is the third public data release of images and catalogs for the DECam Legacy Survey (DECaLS). Images from DECaLS g,r,z-band observations (NOAO survey program 0404; noao.edu/perl/abstract?2014B-0404) are included from August 2014 through March 2016.
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DR3 also includes DECam data from a range of non-DECaLS surveys, including observations that were conducted from September 2012 to March 2016. In total, the optical data covers a disjoint footprint with 4300 square deg in g-band, 4600 square deg in r-band and 8100 square deg in z-band, of which 4200 square deg has been observed in all three optical filters.
Links
Where it is published
- Reference page alasky.cds.unistra.fr/DECaLS/DR3/color ↗
landing page · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds/p/decals/dr3/color ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds/p/decals/dr3/color | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[modality].local:modality:imaging | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |