Nyx Space: Revolutionizing Flight Dynamics¶

Advanced Flight Dynamics

Complex mission orchestration

• Access validated gravity model datasets and daily updates to atmospheric and Earth rotation data
• Augmented state estimation and consider covariance, including ground station location, and radio delays and biases
• Target coupled multi-spacecraft trajectories and automate repeated, multi-phase operational conops sequences
• Genetic algorithm global optimization of low thrust constellation orbit raising
• 100% free license designed for Air-gapped Mission Ops Centers, and continuous integration pipelines

Orbit Determination

Scriptable, CI-ready replacement for Ansys ODTK

• Extended Kalman Filters, with smoothing, and Batch Least Squares Estimators (incl. Levenberg-Marquardt)
• Access Normalized Innovation Squared (NIS) and Normalized Estimation Error Square (NEES)
• Export whitened residuals, Kalman gains, Filter-Smoother consistency, Uncertainty of orbital elements
• State noise compensation (process noise) available in inertial, RIC, or VNC frames, with maximum inflation duration, or exponentially decaying
• Full OD Monte Carlo simulation suite with multivariate dispersions from covariance

Mission Design & Optimization

Fidelity of Ansys STK, at several times the speed

• Third-body effects, solar radiation pressure accounting for tri-axial ellipsoid of the shadow object, drag model (NRLMSISE-00), multi-body solid tides (compatible with gas giants)
• Maneuver targeting and modeling: impulsive, finite high-thrust burns, low-thrust optimization
• Multi-variable differential correctors (targeters) using either Newton-Raphson or Broyden's method (Secant)
• Propagation stopping conditions on epoch, duration, orbital element, or any ANISE calculation object (e.g. LST of 0615)

Monte Carlo & Dispersion Analysis

3,000 simulation days per minute per CPU core

• Parallel and thread-safe by design, enabling massive-scale operational-level risk analysis
• Multivariate normal dispersions from covariance, or specific orbital element uncertainty, mapped to Cartesian space with automatic differentiation
• Blazing fast speeds, low memory footprint, unmatched by any proprietary toolsuite

ANISE

Landed Firefly Blue Ghost on the Moon

• Thread-safe, FSW-ready alternative to legacy SPICE toolkit
• Ephemeris, Orientation, Instrument, Eclipse modeling validated against CSPICE in continuous integration
• Calculations of orbital elements, ground station azimuth, elevation, range, and range-rate data, orbital element uncertainties from covariance, etc.
• Supports NASA SPICE kernels, CCSDS OEM and OPM, and STK .e files

Hifitime

Precision Time Management

An overflow-safe, high-performance datetime library providing leap-second-correct nanosecond precision across UTC, GPST, and relativistic time-scales. Flight-proven in lunar and deep-space missions, it works on desktop, web assembly, and bare-metal platforms.

Trusted by Industry Leaders

See who's already benefiting from our tools

Our tools are trusted and actively used by leading companies in the aerospace and technology sectors. Their commitment to using Nyx, Hifitime, and ANISE is a testament to the reliability, efficiency, and advanced capabilities of our software.