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spacedatalab
Website · Source · spacelab core · Verification ledger · Releases
Python bindings for spacelab, astrodynamics in Rust with the verification as the deliverable. SGP4, numerical and semi-analytical propagation, GNSS, orbit determination, coverage and constellation design, Earth observation and SAR. Every number is checked against a lineage that did not come from the project, and each check is written down with its oracle and residual. One abi3 wheel per platform, no runtime dependencies.
pip install spacedatalab
import spacedatalab as sdl
l1 = "1 25544U 98067A 08264.51782528 -.00002182 00000-0 -11606-4 0 2927"
l2 = "2 25544 51.6416 247.4627 0006703 130.5360 325.0288 15.72125391563537"
r, v = sdl.sgp4_propagate(l1, l2, 0.0) # TEME position (m) and velocity (m/s)
spacedatalab is the Python entry point of SpaceDataLab: its top level
is the spacelab core, and later SpaceDataLab products arrive as submodules.
Checked against independent references
 |
 |
|---|---|
| SGP4 against python-sgp4 over 24 h: at most 250 nm (ISS) and 240 nm (GPS); 3 % of the samples agree to the bit. Same lineage, so this pins units, epochs and frames. | The CIO chain against ERFA's identical route, 1900–2100: at most 0.012 µas, 360 nm on the ground. ERFA's matrix route differs by up to 3.7 µas: two formulations of one model, not an error. |
 |
 |
| 108 cells, 24 h: at a 1 s step brute force finds 417 of 417 passes and agrees on coverage to 0.0045 %; at 600 s it misses 79. The engine needs no step: it brackets every edge and refines it to 1 ms. | The engine's coverage of 10368 cells ends at 71.25° latitude, the last cell inside the analytic reach of the 5° mask, 71.5° (dashed). |
What is exposed
- Propagation: SGP4, Kepler, Lambert, Brouwer-Lyddane, DSST (mean and osculating), and numerical propagation with the geopotential, tides, relativity, drag and luni-solar forces.
- Environment: NRLMSISE-00 and SDTM-1 density, space weather, IGRF, NeQuick-G, Klobuchar, Saastamoinen, and the Niell, GMF and VMF mapping functions.
- Frames and astrometry: TEME, GCRF, ITRF and geodetic transforms, aberration, refraction.
- Measurements and estimation: range, range-rate, TDOA/FDOA, DSN observables, Gauss-Newton, GNSS combinations, cycle slips and ambiguity resolution, collision probability.
- Mission design: Walker, Street-of-Coverage, Flower and Draim constellations, coverage metrics, access windows, sun-synchronous and repeat-ground-track orbits, the CR3BP libration points and halo seeds.
- GNSS: orbits from RINEX navigation files, DOP, GLONASS frequencies.
- Earth observation and SAR: swath geometry, atmospheric correction, BRDF kernels, phase unwrapping, interferometry, chirp-scaling focusing, PS/SBAS, stereo and pan-sharpening.
- Control: attitude laws and margins, LQR, Clohessy-Wiltshire, consensus on graphs.
Wheels
One abi3 wheel per platform covers CPython 3.11 to 3.14; an abi3.abi3t wheel covers 3.15 and
the free-threaded 3.15t. Built for Linux (x86_64, aarch64; manylinux 2.28), macOS (arm64, x86_64)
and Windows (x64). Other platforms build from the sdist with a Rust toolchain.
Licence
Licensed under either of Apache-2.0 or MIT at your option. Third-party attributions are in NOTICE.
1 maintainer
Metadata
1 maintainer
Release files for spacedatalab 0.2.0
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