RK8Propagator
- class ssapy.propagator.RK8Propagator(accel, h)[source][source]
Bases:
RKPropagatorRunge-Kutta 8th order numerical integrator.
- Parameters:
accel (ssapy.Accel) – Accel object containing the acceleration model by which to propagate.
h (float) – Step size in seconds. ~70s yields accuracy of ~1e-6 meters at GEO over a couple of days. ~20s yields accuracy of ~1e-5 meters at LEO over a few hours.
Attributes Summary
Attributes Documentation
- a = array([[ 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 5.55555556e-02, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 2.08333333e-02, 6.25000000e-02, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 3.12500000e-02, 0.00000000e+00, 9.37500000e-02, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 3.12500000e-01, 0.00000000e+00, -1.17187500e+00, 1.17187500e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 3.75000000e-02, 0.00000000e+00, 0.00000000e+00, 1.87500000e-01, 1.50000000e-01, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 4.79101371e-02, 0.00000000e+00, 0.00000000e+00, 1.12248713e-01, -2.55056738e-02, 1.28468239e-02, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 1.69179898e-02, 0.00000000e+00, 0.00000000e+00, 3.87848278e-01, 3.59773699e-02, 1.96970214e-01, -1.72713852e-01, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 6.90957534e-02, 0.00000000e+00, 0.00000000e+00, -6.34247977e-01, -1.61197575e-01, 1.38650309e-01, 9.40928614e-01, 2.11636326e-01, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 1.83556997e-01, 0.00000000e+00, 0.00000000e+00, -2.46876808e+00, -2.91286888e-01, -2.64730202e-02, 2.84783876e+00, 2.81387331e-01, 1.23744900e-01, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [-1.21542482e+00, 0.00000000e+00, 0.00000000e+00, 1.66726087e+01, 9.15741828e-01, -6.05660580e+00, -1.60035736e+01, 1.48493031e+01, -1.33715757e+01, 5.13418265e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 2.58860916e-01, 0.00000000e+00, 0.00000000e+00, -4.77448579e+00, -4.35093014e-01, -3.04948333e+00, 5.57792004e+00, 6.15583159e+00, -5.06210459e+00, 2.19392617e+00, 1.34627999e-01, 0.00000000e+00, 0.00000000e+00], [ 8.22427600e-01, 0.00000000e+00, 0.00000000e+00, -1.16586733e+01, -7.57622117e-01, 7.13973588e-01, 1.20757750e+01, -2.12765911e+00, 1.99016621e+00, -2.34286472e-01, 1.75898578e-01, 0.00000000e+00, 0.00000000e+00]])[source]