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STAC Item Specification

The STAC Item object is the most important object in a STAC system. An Item is the entity that contains metadata for a scene and links to the assets.

Item objects are the leaf nodes for a graph of Catalog and Collection objects. See the overview document for more information about how these objects relate to each other.

In this directory

Specification: The STAC Item specification is in item-spec.md. It includes an overview and an in-depth explanation of the fields.

Schemas: The OpenAPI specification in item.json defines an Item object. The basics, datetime, instrument, licensing, and provider schemas validate additional fields defined in Common Metadata.

Common Metadata: A set of commonly-used fields for STAC Items is listed in common-metadata.md.