The Gravity Perturbed Hohmann Transfer - SNOPT version

MATLAB script for solving the Hohmann transfer problem perturbed by non-spherical Earth gravity.

https://sourceforge.net/u/cdeaglejr/profile/

Version 1.4.0.0 (886 ko)
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28 jan. 2026

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PDF document and a MATLAB script named phohmann_snopt which can be used to solve the gravity perturbed Hohmann transfer between coplanar and non-coplanar circular Earth orbits. The algorithm starts with a two-body Hohmann transfer initial guess and then uses the SNOPT nonlinear programming (NLP) method to determine the optimum two impulse orbit transfer subject to non-spherical Earth gravity perturbations.
The phohmann_snopt script uses modified equinoctial orbital elements to solve the gravity perturbed orbit transfer problem. Additional information about these orbital elements can be found in Appendix B. That appendix also explains how to use components and combinations of these non-singular elements to calculate a variety of orbital element “targets”.
This script requires a platform specific SNOPT mex file and additional MATLAB support functions available at http://scicomp.ucsd.edu/~peg/.

Citation pour cette source

David Eagle (2026). The Gravity Perturbed Hohmann Transfer - SNOPT version (https://fr.mathworks.com/matlabcentral/fileexchange/40567-the-gravity-perturbed-hohmann-transfer-snopt-version), MATLAB Central File Exchange. Extrait(e) le .

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Informations générales

Compatibilité avec les versions de MATLAB

  • Compatible avec toutes les versions

Plateformes compatibles

  • Windows
  • macOS
  • Linux
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Version Publié le Notes de version
1.4.0.0

Algorithm, graphics and PDF documentation updates.
1.3.0.0

Updated documentation and MATLAB code cleanup/annotation.
This script requires a platform-specific SNOPT mex and support files. Information can be found at https://ccom.ucsd.edu/~optimizers
1.2.0.0

Updated phohmann.m source code for compatibility with SNOPT, version 7.5 (June 2015).
Added main script (phohmann_64bit.m) that uses the March 17, 2014 version of SNOPT.
1.1.0.0

Added three-dimensional trajectory graphics. Updated PDF document to reflect this change.
1.0.0.0