Overview
STAC is extensible, being a network of JSON files that follow corresponding specifications. A STAC extension is a JSON schema with additional parameters available for a specific STAC collection or a STAC item. For more information, see STAC Extensions.
STAC extensions contain descriptions of parameters with {prefixes}:
. UP42 has its own platform-specific extensions.
UP42 system extension
Parameter | Overview |
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up42-system:source | string The source of data. The allowed values:
|
up42-system:account_id | string The account ID. |
up42-system:asset_id | string The UP42 asset ID. |
up42-system:workspace_id | string The user workspace ID. |
up42-system:metadata_version | string The metadata version. |
UP42 product extension
Parameter | Overview |
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up42-product: data_type | string The type of data. The allowed valued:
|
up42-product: modality | string The modality of data that depends on the data type. For example, multispectral or hyperspectral. |
up42-product: collection_name | string The geospatial collection name. |
up42-product: product_id | string The product ID. |
UP42 user extension
Parameter | Overview |
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up42-user:title | string A custom title added to the corresponding UP42 asset in storage. |
up42-user:tags | string Tags added to the corresponding UP42 asset in storage. |
UP42 order extension
Parameter | Overview |
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up42-order:id | string The order ID. |
up42-order:status | string The status of the order. The allowed value is FULFILLED . |
up42-order:host_id | string The provider order ID. |
Sentinel-2 extension
Parameter | Description |
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sentinel: sequence | string The version number of the data. Values other than 0 mean that this is either a processed version of the scene or another image taken for that tile on a given date. |
sentinel: utm_zone | integer The UTM longitude zone. |
sentinel: product_id | string The original product ID. For more information, see Sentinel-2 naming convention. |
sentinel: grid_square | string A two-letter code indicating a particular 110×110 km region inside the UTM grid zone. |
sentinel: data_coverage | integer The percentage of the scene covered by valid data pixels, that is, not NoData values. |
sentinel: latitude_band | string A letter indicating the scene's latitude band. Beginning at 80°S and proceeding northward, the 20 bands are lettered C through X, omitting I and O. The bands are all 8° high except band X, which is 12° high. |
sentinel:valid_ cloud_cover | boolean Whether the eo:cloud_cover parameter is valid. |
sentinel:boa_ offset_applied | boolean Whether the –0.1 offset added by ESA after January 25, 2022 was applied to the cloud optimized GeoTIFF. For more information, see Sentinel news. |
sentinel: processing_ baseline | string The version of the Ground Image Processing Parameters used by ESA to process the raw Sentinel-2 data into Level-1C and Level-2A products. For more information see, Sentinel-2 processing baseline. |