UIT Near-UV Bright Objects Catalog: 2,244 Sources from Astro-1 Mission

2,244 objects detected in the near-ultraviolet by the Ultraviolet Imaging Telescope during the Astro-1 Space Shuttle mission. The catalog includes near-UV magnitudes and cross-identified optical colors, with 88% of objects having proposed optical identifications, most of which are stars. NASA HEASARC created this database in November 2000 based on source material from the CDS.

Use Cases

• Identifying very blue stellar objects based on near-UV to optical color data.
• Performing Galactic UV stellar population studies using the catalog's photometric measurements.
• Cross-matching near-UV sources with optical catalogs for multi-wavelength analysis.

Strengths

• Contains 2,244 detected objects, providing a substantial sample for analysis.
• 88% of objects have proposed optical identifications from cross-referenced catalogs.
• Includes derived near-UV to Johnson V colors for photometric studies.

Limitations

• The survey is not complete to its faintest detection limit of magnitude ~18.8.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is known, but the completeness and selection function details are limited.

Provenance

Source

NASA HEASARC, based on machine-readable version from the CDS (Catalog J/ApJS/104/287).

Collection Method

Photometric catalog created from Ultraviolet Imaging Telescope (UIT) observations.

Time Range

Observations from the Astro-1 Space Shuttle mission.

Freshness

Last updated 2026-03-13 20:14:03.173230; freshness should be verified.

Geography

Celestial; coverage is not specified in the provided description.