UIT Master Catalog: Ultraviolet Space Telescope Exposures from ASTRO Missions

1579 ultraviolet exposures were obtained by the Ultraviolet Imaging Telescope (UIT) on two Space Shuttle missions, ASTRO-1 in 1990 and ASTRO-2 in 1995. The catalog contains 1481 rows of data, detailing 777 exposures from UIT-1 and 704 from UIT-2, with 98 exposures noted as missing. This table was created by NASA's HEASARC in April 2012 based on the CDS Catalog VI/104.

Use Cases

• Cross-matching ultraviolet observations with other astronomical catalogs based on target identifiers.
• Analyzing the distribution of observations across near-UV and far-UV filters mentioned in the description.
• Studying the observational history of specific celestial targets across two space missions.
• Assessing data completeness for the UIT missions based on the noted count of missing exposures.

Strengths

• Provides a consolidated record of 1481 ultraviolet exposures from two distinct space missions.
• Includes specific counts for near-UV (347) and far-UV (430) exposures from the UIT-1 mission.
• Documents technical specifications such as the 3 arcsecond resolution and 40 arcminute field of view.
• Originates from an authoritative source, NASA HEASARC, and is linked to a CDS catalog.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The catalog is noted to be incomplete, with 98 exposures missing from the total recorded.
• Last updated 2026-03-13 19:43:21.249471; freshness should be verified.

Provenance

Source

NASA HEASARC, based on CDS Catalog VI/104.

Collection Method

Digitized from 70-mm photographic film exposures obtained by the UIT telescope.

Time Range

Observations from 2-10 December 1990 (ASTRO-1) and 3-17 March 1995 (ASTRO-2).

Freshness

Last updated 2026-03-13 19:43:21.249471

Geography

Space-based observations; celestial targets.