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Impulsive Hyperbolic Injection from a Circular Earth Park Orbit – NLP Method

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Impulsive Hyperbolic Injection from a Circular Earth Park Orbit – NLP Method

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28 Nov 2012 (Updated )

PDF document and MATLAB script for interplanetary injection using a nonlinear programming method.

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Description

The hyper2_matlab.m MATLAB script determines the orbital elements and state vectors of the park orbit and departure hyperbola at injection, and the injection delta-v vector and magnitude. This information can be used as initial guesses for other trajectory simulations. This script uses the SNOPT nonlinear programming (NLP) method to find the optimal coplanar or non-coplanar transfer maneuver.

MATLAB release MATLAB 8.0 (R2012b)
Other requirements Requires the SNOPT MATLAB support functions and platform-specific mex file. MATLAB versions of SNOPT for several computer platforms can be found at Professor Philip Gill’s web site which is located at http://scicomp.ucsd.edu/~peg/.
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10 Jun 2014 sun Chong  
Updates
11 Dec 2013

Modified script to compute both opportunities for the case of coplanar transfer. Updated PDF user's manual to reflect this change.

07 Jul 2014

Added main script (hyper2_matlab_64bit.m) that uses the March 17, 2014 version of SNOPT.

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