Perturbations (Episteme API Documentation)

java.lang.Object

org.episteme.natural.physics.astronomy.Perturbations

public class Perturbations extends Object

Calculator for orbital perturbations.

Includes J2 (oblateness) and atmospheric drag estimates.

Since:: 1.0
Author:: Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Method Summary

Modifier and Type

Method

Description

static Vector<Real>

computeJ2Perturbation(Vector<Real> r, Real mu, Real J2, Real R_body)

Calculates perturbation acceleration due to J2 (Earth oblateness).

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details
- computeJ2Perturbation
  
  public static Vector<Real> computeJ2Perturbation(Vector<Real> r, Real mu, Real J2, Real R_body)
  
  Calculates perturbation acceleration due to J2 (Earth oblateness).
  
  Parameters:
  
  r - position vector (approx ECI)
  
  mu - standard gravitational parameter
  
  J2 - J2 coefficient
  
  R_body - equatorial radius of the body
  
  Returns:
  
  acceleration vector