Changelog

All notable changes to Awesome Earth Observation Instruments are summarized here.

0.4.0

Instruments And Metadata

• Added VGT-1 on SPOT-4, VGT-2 on SPOT-5, and VGT-3 on PROBA-V with platform-specific operation periods, native sampling metadata, spectral band definitions, and public data-access links.
• Added official central-camera spectral response functions and Google Earth Engine access metadata for VGT-3.
• Added HRV records for SPOT-1, SPOT-2, and SPOT-3; HRVIR for SPOT-4; HRG and HRS for SPOT-5; and NAOMI for SPOT-6 and SPOT-7 (Azersky).
• Added five shared SPOT spectral band tables with native GSD values, spectral mode notes, public CNES archive links, and platform-specific external catalogue links.
• Added the WorldView-60 camera on WorldView-1, WorldView-110 cameras on WorldView-2 and WorldView-3, and SpaceView-110 imaging system on WorldView-4.
• Added the WorldView-Legion Camera records for all six WorldView Legion spacecraft.
• Added five vendor-sourced spectral band tables covering the four legacy WorldView configurations and the shared WorldView Legion configuration.
• Added first-party Vantor datasheet references, reconciled WorldView specifications with the current documents, and normalized semantic multispectral, SWIR, and CAVIS band identifiers from the datasheet labels.

Documentation

• Added funding acknowledgements and funder logos to the repository README and VitePress website.
• Added an interactive catalogue dashboard covering instrument composition, operations, spectral resources, data access, and external catalogue links.
• Renamed the website catalogue index to Search Instruments and redesigned the landing-page actions around the site brand color.
• Grouped secondary website links under a More navigation menu.

0.3.0

Catalogue

• Replaced materialized spectral response arrays in catalogue.json with raw GitHub CSV URLs while preserving the source filenames.
• Changed catalogue.json to readable, four-space pretty-printed JSON.

Schema

• Added platform-specific lifecycle validation: satellite and airborne instruments use operational or retired, while UAV and terrestrial instruments use active or legacy; all platforms retain experimental and planned.
• Added the required contributors property for unique GitHub profile URLs.
• Added optional Land Surface Temperature (lst), Water Surface Temperature (wst), Ground Range Detected (grd), and Radiometrically Terrain Corrected (rtc), and Single Look Complex (slc) product roles to every data-access point schema.
• Added the optional positive ne_delta_t band property, in kelvin, for thermal-band noise specifications and made it mutually exclusive with snr.

Instruments And Metadata

• Added Sentinel-3A and Sentinel-3B SLSTR instrument records with a shared 11-band definition, platform-specific measured spectral response functions, specialized surface-temperature data access, and external catalogue links.
• Added separate Parrot Sequoia multispectral and RGB UAV instrument records, including the four-band multispectral definition.
• Added Sentinel-3A and Sentinel-3B OLCI instrument records with shared nominal band definitions and platform-specific mean spectral response functions.
• Migrated existing UAV instrument lifecycle statuses from operational and retired to active and legacy.
• Added the initial contributor attribution to every instrument record.
• Added published NE(Δ)T specifications for Altum, Altum-PT, ASTER, Landsat TM, ETM+, TIRS/TIRS-2, and MODIS thermal bands.

Documentation

• Added advanced instrument-index filters for core metadata, start dates, spectral resources, and data access providers.
• Added NE(Δ)T values to the instrument-page spectral band tables.
• Linked instrument IDs in the generated repository README to their VitePress instrument pages instead of their first source reference.
• Changed VitePress SRF plotting data generation to read the validated local SRF CSV files directly.

0.2.0

Catalogue

• Consolidated provider-specific data access metadata under the data_access extension.
• Added generated family and platform_companions relationship fields to each instrument in catalogue.json.
• Preserved the original SRF CSV filename in spectral.spectral_response_function_file while still materializing SRF CSV content into the catalogue.
• Added generated spectral bands for range-based instruments using either total_bands or sampling.
• Added support for assigning an optional range-level bandwidth to every generated spectral band.
• Added Copernicus Data Space Ecosystem data access support.
• Added EOPF Sentinel Zarr Samples data access support.

Schema

• Added the cross_links extension for external catalogue URLs.
• Added the consolidated data-access.yaml extension.
• Moved provider-specific access schemas into schema/extensions/data_access_points/.
• Added the optional spectral.range.bandwidth property for declaring a common bandwidth across generated bands.
• Updated schema identifiers and references to raw GitHub URLs.
• Improved schema property descriptions.

Instruments And Metadata

• Added ASTER with VNIR, SWIR, and TIR band definitions, system response functions, data-access metadata, and external catalogue links.
• Added MODIS instrument records for the Terra and Aqua platforms.
• Added the MicaSense RedEdge-P, Altum-PT, and three Altum serial-number UAV instrument configurations with their corresponding spectral band definitions.
• Added MicaSense RedEdge-MX RX01 and RX02-or-higher UAV configurations with their serial-dependent spectral band definitions.
• Added the legacy MicaSense RedEdge 3 UAV instrument and spectral band definitions.
• Added the legacy MicaSense RedEdge-M UAV instrument and spectral band definitions.
• Added shared MODIS band definitions and platform-specific Terra and Aqua spectral response functions.
• Added Google Earth Engine and Microsoft Planetary Computer access metadata for the MODIS MCD43A4 NBAR product.
• Added EarthData, CEOS EO Handbook, and IndexDataBase cross-links for MODIS.
• Added cross-links for EMIT, ETM+, MSS, MSI, OLI, TIRS, and TM records where available.
• Added EarthData, CEOS EO Handbook, and IndexDataBase links where available.
• Added CDSE access metadata for Landsat and Sentinel records where available.
• Added EOPF access metadata for Sentinel-2 MSI records.

Documentation

• Moved README source fragments into readme/.
• Split schema documentation out of the root README into SCHEMA.md.
• Added generated VitePress instrument pages.
• Added searchable VitePress instrument index.
• Added richer single-instrument pages with quick facts, spectral summaries, searchable band tables, data access cards, external catalogue cards, related instruments, and separated source/reference links.
• Grouped single-instrument metadata into responsive, keyboard-accessible tabs for quick facts, spectral and imaging characteristics, data access, external catalogues, and references.
• Added generated VitePress schema and contributing pages.

Project Infrastructure

• Added pyproject.toml.
• Added .gitignore entries for Python, packaging, test, and VitePress artefacts.
• Added pytest validation for catalogue generation.
• Added GitHub Actions-oriented generation and validation workflow support.

0.1.0

Initial Catalogue

• Added the initial instrument catalogue with the current instrument set: EMIT, ETM_L7, MSI_S2A, MSI_S2B, MSI_S2C, MSS_L1, MSS_L2, MSS_L3, MSS_L4, MSS_L5, OLI2_L9, OLI_L8, TIRS2_L9, TIRS_L8, TM_L4, and TM_L5.

Initial Schema

• Added the original core schema.
• Added the original spectral extension.
• Added the original imaging extension.
• Added the original provider-specific data access extensions for Google Earth Engine and Microsoft Planetary Computer.

This release did not include the later cross_links extension or the current consolidated data_access extension.