Data · dataset · 2025
VLA FIRST ConeSearch
Listed in NASA Data Portal
All MAST catalog holdings are available via a ConeSearch endpoint. \nThe Very Large Array (VLA) FIRST -- Faint Images of the Radio Sky at Twenty-cm -- is a project designed to produce the radio equivalent of the Palomar Observatory Sky Survey over 10,000 square degrees of the North and South Galactic Caps.
Description
Using the NRAO Very Large Array (VLA) and an automated mapping pipeline, we produce images with 1.8" pixels, a typical rms of 0.15 mJy, and a resolution of 5".
At the 1 mJy source detection threshold, there are ~90 sources per square degree, ~35% of which have resolved structure on scales from 2-30". 30% of the sources have counterparts in the Sloan Digital Sky Survey. \nThe VLA FIRST catalog at MAST was published December 17, 2014. More information is available at sundog.stsci.edu\nAll available missions are listed at archive.stsci.edu/vo/mast_services.html.
Links
Get the data
- Resource archive.stsci.edu/vo/mast_services.html ↗
download · from data nasa gov
- Resource gsss.stsci.edu/webservices/vo/ConeSearch.aspx?CAT=FIRST ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/vla-first-conesearch ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=32f9c0b0-0992-4300-9e3f-6243cbbcb… ↗
metadata API · from data nasa gov
Topics
- Inferred from text
- Image 65%
Provenance · 1 source records, 7 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 32f9c0b0-0992-4300-9e3f-6243cbbcb59e | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[modality].local:modality:image | enrichment · data nasa gov | keyword-concept-rules@1.0.0 | title+description (65%) |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /notes |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| title | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /title |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 |