astroz
High-performance astrodynamics library with SIMD-accelerated SGP4 propagation
Python Documentation
Python bindings API reference. High-level propagation, constellation screening, and NumPy integration.
Zig Documentation
Core library API reference. SIMD kernels, SGP4/SDP4 implementation, coordinate transforms, and low-level interfaces.
🐍 Python
import astroz
# Propagate Starlink constellation
positions = astroz.propagate("starlink", [0, 60, 120])
# Screen for close approaches
pairs, times = astroz.screen(
"starlink",
range(1440),
threshold=5.0
)
# Get ISS position in geodetic coords
geo = astroz.propagate(
None,
[0],
norad_id=25544,
output="geodetic"
)
⚡ Zig
const astroz = @import("astroz");
// Parse TLE and create propagator
const tle = try astroz.Tle.parse(tle_line1, tle_line2);
var sgp4 = try astroz.Sgp4.init(tle);
// Propagate to 60 minutes after epoch
const state = sgp4.propagate(60.0);
// SIMD batch propagation
var times: [8]f64 = .{ 0, 15, 30, 45, 60, 75, 90, 105 };
const results = sgp4.propagateN(×);