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Service Interruption Notice
Due to construction, network connectivity to STScI will be unavailable Monday, 17 August from 7:00 AM to 8:00 AM EDT (11:00 to 12:00 UTC).

ASCII Catalogs

To assist in searching the HST Archive and submitting proposals, ASCII listings are available which list completed and planned proposals and exposures. You can read more about the different kinds of catalogs by following the links below, or go straight to the Exposure Catalogs Directory.

Exposures

Proposals