lib/answerability.ts
Answerability before answers
Four deterministic checks run against published sensor specifications before any analysis starts. A truck is 10 m; so is the pixel. The system says so instead of guessing.
vision-language analysis for multisensor earth observation
Most remote-sensing tools answer every question with equal confidence. SatQuery checks whether the observation can physically support a question first — and when it cannot, it says so, with the number that makes it impossible.
Built on open Earth observation data
what it does
An agentic controller selects specialist models per query and input configuration, combines their output, and returns the evidence alongside the answer.
lib/answerability.ts
Four deterministic checks run against published sensor specifications before any analysis starts. A truck is 10 m; so is the pixel. The system says so instead of guessing.
NDVI · NDWI
NDVI and NDWI computed per-pixel from raw Sentinel-2 reflectance bands, with cloud and no-data masked on both dates. Refuses outright below 25% usable area.
resnet50-s2-v0.2.0
The official pretrained BigEarthNet v2.0 checkpoint, trained by the dataset authors on Sentinel patches. Loaded as published — we did not train it, and we say so.
resnet50-all-v0.2.0
The multimodal checkpoint consumes co-registered Sentinel-1 radar and Sentinel-2 optical in a single forward pass. Radar is not blocked by cloud; optical carries the spectrum.
data/models.json
The controller reads the file's own bytes to pick a tool. A multispectral raster reaches a band-trained model; a rendered image cannot, and does not pretend to.
execution trace
Every run returns which model executed, its adaptation level, what it cannot produce, and a downloadable self-contained report. The limits ship with the answer.
10 m
Sentinel-2 ground sample distance
19
BigEarthNet land-cover classes
4
Deterministic answerability checks
400
Held-out parser evaluation questions
Each figure is a property of the data or of this repository, not a claim about adoption. There are no usage statistics on this page because the system has no users yet.
two ways in
The console queries the live Copernicus record for any area on Earth. The workspace analyses imagery you already have — including the multispectral GeoTIFF pairs a benchmark hands you.