KeplerOrbitSimulator2D

A 2-Dimensional Kepler orbit simulator that allows uses to input orbital state vectors and relevant constants that define an orbit about a central fixed body, neglecting the mass of the satellite

KeplerOrbitSimulator2D simulates a Kepler Orbit under the following schema:

calculates elements of a kepler orbit including eccentricity, true anomaly, etc.
constructs a kepler orbit as a polar function of the true anomaly
uses newton's method to extrapolate for the eccentric anomaly as a function of time
extrapolates the next true anomaly from this information
plots the position of the satellite using the polar function defining the radius vector from the fixed body to the satellite

User Manual

Setting Up a User Defined Orbit:

stop the simulation by clicking/tapping the start/stop button
set the recalculate option to true by clicking/tapping the recalculate button
adjust the parameters using the 1d sliders for constants and/or scalars or the 2d sliders for state vectors
set recalculate to false (this is not necessary but recommended)
set start/stop to true to run the simulation

Adjusting run-time values (time step and radii):

Simply drag the sliders for these values left or right to alter their values; changes will take effect immediately

Notes:

Buttons are in the true state when light blue is towards the left
Under the hood, the y axis and positive angular direction are inverted

Javadoc