Orbits

Standard Maps (StdMap) displays the dynamics of several "area preserving" mappings. It will also find periodic orbits, cantori, and stable and unstable manifolds of any (symmetric) periodic orbit. Platforms: Mac

Cavendish's screensaver module beautifully visualizes the gravitational forces shaping our universe, accurately predicting and drawing the paths of celestial bodies as their masses attract each other. The screensaver generates a 3D universe with randomly distributed bodies and then uses OpenGL to... Platforms: Mac

iS3 dials into NASA's web servers and uses their 'NASA Solar System Simulator' to return an image of any planet or moon as seen from any other planet (or some man made objects) at any given time along with some other options such as constellation lines and planet orbits. Platforms: Mac

Two of the most feared enemy races joined forces to launch the ultimate attack, known as 'Sun Blast'. The only chance for survival is to seek and destroy all enemy starships, which are the main threat. You will choose the ship that best suits your needs and begin the adventure of your life.... Platforms: Mac

Visualization tool for the N-body problem. The first program of its kind for Mac OS X, it has an intuitive interface, beautiful graphics and an accurate and fast core physics engine. Cavendish is named for Henry Cavendish (1731 - 1810) who used a torsion balance to make the first accurate... Platforms: Mac

An easy-to-use program that solves the n-body problem. It accurately simulates gravitational interactions between an arbitrary number of objects. (For clarity, dynamics are restricted to the plane). You can create systems in Cavendish's intuitive graphical interface or write systems in... Platforms: Mac

Free Deep Space 9 Screensaver Conceived in 1991, shortly before Gene Roddenberry?s death, DS9 centers on the formerly Cardassian space station, Terok Nor. After the Bajorans liberated themselves from the long and brutal Cardassian Occupation, the United Federation of Planets is invited by the... Platforms: Windows

About Cavendish Screensaver Screensaver module beautifully visualizes the gravitational forces shaping our universe, accurately predicting and drawing the paths of celestial bodies as their masses attract each other. The screensaver generates a 3D universe with randomly distributed bodies and... Platforms: Mac

PLOTAUTOBD builds bifurcation diagrams as displayed by XPPAUT, from AUTO data saved in a DAT file by XPPAUT option File/All Info.Several built-in features allow to finely control the graphic output with the possibility to produce publication quality figures as well as to make bifurcation data... Platforms: Matlab

This toolbox contains a satellite tracker MSatTrack. You can input orbital parameters defined by yourself or existing ones (included). The tracking is done in 3D and the resulting grountracks are then plotted on a 2D map after the simulation is done. Several satellites can be simulated... Platforms: Matlab

In the past several years compact radio navigation receivers have proliferated in the civilian market place, generally under the name of GPS or Global Positioning System. Appearing as handheld units or built into cars, mobile phones, and airplanes, these commercial applications originated from a... Platforms: Matlab

This interactive MATLAB script (sep_ltot.m) can be used to determine the characteristics of continuous, low-thrust orbital transfer between two nonplanar circular orbits using solar-electric propulsion (SEP). The numerical method used in this script is described in Chapter 14 of the book Orbital... Platforms: Matlab

A Lambert-orbital boundary value problem can be stated as"Find the orbit/trajectory of a spacecraft that flies from position [r1] to [r2], taking a time [tf] and making [m] complete orbits before arriving at [r2]. "The solution to each Lambert-problem is NOT unique; one can travel to [r2] via the... Platforms: Matlab

Phi = keplerSTM(x0,dt,mu) will return the state transition matrix Phi for a set of objects described by initial positions and velocities (x0) with gravitational parameters mu, propogated along Keplerian orbits for time dt. The positions and velocities at time dt is then given by Phi*x0. x0 must... Platforms: Matlab

NBODYVECT - Fully vectorized n-body equationnbodyVect(x0,dx0,mus,t) integrates the n-body equations of motion using either a symplectic second order integrator, or any of the standard built-in or user supplied first order integrators. x0 - 3n x 1 stacked initial position vectors:... Platforms: Matlab

The EJS Differential Galactic Rotation Model illustrates the model of galactic rotation proposed by Jan Oort in 1927. In Oort's model most of the mass of the galaxy is concentrated at the center. Stars move in circular orbits around the center, with orbital speeds that are inversely proportional... Platforms: Mac