Numerical Prediction of Orbital Events - MICE version

version 1.0.0 (30.6 MB) by David Eagle
MATLAB script and user's manual for predicting important root-finding and extrema orbital events

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Updated Fri, 04 Feb 2022 09:54:05 +0000

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This submission is an interactive MATLAB script named npoe_mice.m that can be used to propagate spacecraft in Earth orbits and model important orbital events. This script implements a special perturbation solution of orbital motion using a variable step size Runge-Kutta-Fehlberg (RKF78) integration method to numerically integrate Cowell’s form of the system of differential equations. Orbital events are predicted by embedding the RFK78 algorithm within Brent’s derivative-free methods for finding the single roots and extrema of nonlinear equations. The user can control both the integration and root-finding convergence criteria.
This MATLAB script can accurately predict the time and orbital characteristics for any physically realizable user-defined value of the following orbital elements
  • argument of latitude
  • geodetic altitude
  • geodetic latitude
  • right ascension
  • geocentric declination
  • east longitude
  • flight path angle
  • orbital speed
as well as extrema (minimum and maximum values) for these eight orbital elements.
The npoe_mice software can also predict the circumstances of the following mission events
  • spacecraft-to-moon visibility
  • spacecraft-to-sun visibility
  • Earth shadow - penumbra
  • Earth shadow - umbra
  • Moon shadow - penumbra
  • Moon shadow - umbra
  • observer-to-spacecraft visibility
This MATLAB script reads JPL lunar and solar ephemerides in a machine-independent binary format (kernels) which are available from the SPICE web site and by anonymous ftp from ftp://ssd.jpl.nasa.gov/pub/eph/planets/bsp. These *.bsp ephemeris files are IEEE-Little Endian style of binary kernel. This is the binary form native to PC/Linux, PC/Windows and MAC/Intel machines. Additional information about JPL ephemerides can be found at http://naif.jpl.nasa.gov/naif/.
The npoe_mice script uses routines from the MICE software suite to read and evaluate the JPL binary ephemeris file. Platform-specific MICE mex files, support functions and the binary ephemeris file (de430_1850-2150.bsp) are available at naif.jpl.nasa.gov/naif/toolkit_MATLAB.html. MICE is a MATLAB implementation of the SPICE library created by JPL.

Cite As

David Eagle (2022). Numerical Prediction of Orbital Events - MICE version (https://www.mathworks.com/matlabcentral/fileexchange/106170-numerical-prediction-of-orbital-events-mice-version), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2019b
Compatible with any release
Platform Compatibility
Windows macOS Linux

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