MAST ObsCore ConeSearch: Astronomical Observation Catalog Holdings

MAST ObsCore ConeSearch provides access to all catalog holdings with positional information from the Mikulski Archive for Space Telescopes. The data is ingested into the Common Archive Observation Model and its summarized ObsCore format. The dataset is maintained by the National Aeronautics and Space Administration and was last updated on 2026-03 13.

Use Cases

• Query astronomical observations by sky position based on the ConeSearch endpoint.
• Cross-reference observation metadata from multiple missions via the Common Archive Observation Model.
• Access summarized observation data for catalog analysis based on the ObsCore format.

Strengths

• Data is provided by the authoritative NASA MAST archive.
• Access is available via a standardized ConeSearch endpoint and a linked TAP service.
• Last updated on 2026-03-13, indicating recent maintenance.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observational data ingested into the Common Archive Observation Model (CAOM) and its summarized ObsCore format.

Time Range

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Freshness

Last updated 2026-03-13.

Geography

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