NOW LIVE — v4.8.2

Master the
physics of
interplanetary
travel.

Professional-grade rocket trajectory simulation and orbital mechanics platform trusted by engineers at NASA, SpaceX, and ESA.

TRUSTED BY
NASA
SpaceX
ESA
PROFESSIONAL TOOLS

Built for serious
mission planning

Explore all tools

Physics Simulator

Real-time n-body gravitational simulation with 6-DOF rocket dynamics and atmospheric modeling.

NEWTONIAN + RELATIVISTIC

Trajectory Calculator

Hohmann, bi-elliptic, and low-thrust trajectory optimization with gravity assist support.

PORKCHOP PLOTS

Mars Mission Planner

Complete end-to-end mission design including landing, ISRU, and return trajectory planning.

2030–2035 WINDOWS

Orbital Mechanics

Full Keplerian orbit propagation, rendezvous planning, and station-keeping analysis.

TLE + SPICE KERNELS

Delta-V Calculator

Advanced Δv budgeting with staging analysis and propellant mass fraction optimization.

Tsiolkovsky Equation

Live Telemetry

Real-time data streaming from flight hardware with anomaly detection and visualization.

WEBSOCKET + API
INTERACTIVE DEMO

Trajectory
Simulator

Adjust parameters and instantly see the effects on your interplanetary trajectory.

Mission Success Rate
94.7%
Total Δv Required
9.82 km/s
Time of Flight
214 days
Mars Transfer • 2031 Window
LIVE
INITIAL VELOCITY
9.8
LAUNCH ANGLE
35°
PAYLOAD MASS
450t
CURRENT MISSIONS

Featured trajectories

Artemis III
Lunar South Pole
2026
Δv: 4.1 km/s • Crew: 4
Mars Sample Return
Jezero Crater
2030
Δv: 11.4 km/s • Perseverance
Europa Clipper
Jupiter System
2024
Δv: 7.8 km/s • Gravity assists

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