HST Planned and Archived Observations: Hubble Space Telescope Exposure Catalog

The HST Planned and Archived Exposures Catalog (PAEC) provides a summary of all approved Hubble Space Telescope observations, including both completed and planned exposures. It is compiled by the Space Telescope Science Institute (STScI) from their Archive and Proposal databases and is updated by NASA HEASARC, usually within one month of the source data being modified. The catalog includes observations from the current cycle and those reserved for Guaranteed Time Observer programs in upcoming cycles.

Use Cases

• Plan future astronomical observations based on the catalog of approved and scheduled HST exposures.
• Analyze the history of Hubble Space Telescope usage based on the summary of completed observations.
• Retrieve specific astronomical data files using the catalog's links to the STScI Multimission Archive.
• Study the allocation of telescope time across different observation programs, including Guaranteed Time Observer (GTO) programs.

Strengths

• Data is sourced directly from the authoritative Space Telescope Science Institute (STScI) Archive and Proposal databases.
• Catalog is updated on a regular basis, usually within one month of the source data being modified.
• Provides a direct link to retrieve detailed information and the actual data files from the STScI archive.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The description notes that some solar system and other objects have 0 values for their RA and declination coordinates, which may affect spatial queries.

Provenance

Source

Space Telescope Science Institute (STScI) Archive and Proposal databases.

Collection Method

Compiled from STScI's Archive and Proposal databases, then recreated and served by NASA HEASARC.

Freshness

Last updated 2026-03-13 17:26:56.680335; freshness should be verified.