satctl

Modular library and CLI utility to search, download and process satellite data from different sources, powered by satpy.

Quickstart

satctl can be installed via pip, or uv, in different flavors.

# via pip
$ pip install satctl
# via uv
$ uv add satctl
# including CLI tools
$ uv add satctl[console]

Usage

satctl tries to be as modular as possible, giving the user the possibility to stop the process at any time in the pipeline, from searching to converting the raw data into a GeoTIFF.

Here's a simple example of usage.

from datetime import datetime
from pathlib import Path

from satctl.model import ConversionParams, SearchParams
from satctl.sources import create_source
from satctl.writers import create_writer

if __name__ == "__main__":
    # search available satellites and products
    names = list_sources(name="s2*")

    # or directly create any source
    source = create_source("s3-slstr")

    # Define a research area, from file or as a simple Polygon
    area_file = Path("my_aoi.geojson")

    # filter by space, time or source options
    params = SearchParams.from_file(path=area_file, datetime(2025, 8, 15), end=datetime(2025, 8, 16))
    items = source.search(params)

    # download the tiles locally
    downloaded, fail = source.download(items, destination=Path("downloads/"), num_workers=4)

    # ... load an item as a satpy Scene ...
    sene = source.load_scene(items[0], datasets=["S3", "S2", "S1"])

    # ... or store them directly on file
    writer = create_writer("geotiff")
    source.save(
        downloaded,
        params=ConversionParams.from_file(
            path=area_file,
            target_crs="4326",
            datasets=["all_bands_h"],
            resolution=500,
        ),
        destination=Path("results/"),
        writer=writer,
        num_workers=4,
    )

For more examples and use cases, see the documentation.

Contributing

Contributing requires the following tools: uv for environment and project management, ruff for linting and formatting, pyright for standard type checking. Formatting, linting and type checking is enforced at pre-commit and CI level.

The easiest way to quickstart is the following:

# prepare the environment, requires uv
$ make install

More information about contributing will be added in the main documentation.