Satellite Orbit and Ephemeris Determination using Inter Satellite Links

Inter Satellite LinksOrbit Computation250Step Width [s]20015010050RK4_HABM4_HABM8_H00 10000 20000 30000 40000 50000Orbit Altitude [km]Figure 4-13 Integration Step Width vs. Orbit AltitudeIt ca be seen that the Adams-Bashford-Moulton method of 4 th order achieves the same localerror as the 4 th order Runge-Kutta using a slightly higher step width. The step width has alinear impact on the number of function evaluations which have to be performed. The 8 thorder A-B-M method achieves much higher step widths which is not surprising regarding thehigher order. The next figure shows the number of necessary function evaluations,corresponding to the method and step width.R. Wolf Page 59