A thread-safe, zero-cost alternative to NASA SPICE toolkit, computing spacecraft, planetary, coordinate frame, instrument transformations, ground station visibility, and orbital elements. Engineered for high-throughput Python concurrent execution and flight software, with proven lunar flight heritage.

WOW! The complete NASA/NAIF Spice toolkit is actually usable on Rust

NaifJs, a simple state-machine based dialog manager.

Python package for NAIF WebGeoCalc API

Time conversion using NAIF CSPICE Toolkit in JavaScript via Emscripten.

Spacecraft Remote Sensing

SpiceyPy implementation of Vallado and Alfano, 2014, Curvilinear coordinate transformations for relative motion

Misc routines for working with NAIF/SPICE DS-Kernels (shape models)

Characterization and Improvement of the SPICE Kernels from the Deep Impact Encounter with Comet Tempel 1

Calculate glint angle for satellite

NEAR Orbit viewer

Ruby micro-framework to build dumb chat-machines

SpiceyPy implementation of example GETFOV example provided in NAIF/SPICE toolkit

The NASA JPL NAIF SPICE toolkit Rust FFI bindings, cf. https://naif.jpl.nasa.gov/naif/toolkit.html

Model linear flyby of spacecraft center of mass with offset instrument - SPICE

Venus crossings of Jupiter equator

Compare New Horizons clock to Earth rotation

BASH script to extract trajectories of each body in a NAIF/SPICE SPK to a separate SPK

Simple application generating a C-Kernel using geometry of Deep Impact flyby at comet 9P/Tempel 1

Make synthetic nadir-ish-pointing CKs for OSIRIS-REx