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David Eagle


Last seen: Today Active since 2012

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Aerospace engineer (retired) Professional Interests: aerospace trajectory optimization

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Submitted


Finite-burn lower of a circular or elliptical orbit - OTB
This script can be used to model a finite-burn maneuver that lowers the perigee or apogee of an initial circular or elliptical o...

1 day ago | 4 downloads |

0.0 / 5

Submitted


Finite-burn raise of a circular or elliptical orbit - OTB
This script can be used to model a finite-burn maneuver that raises the perigee or apogee of an initial circular or elliptical o...

1 day ago | 5 downloads |

0.0 / 5

Submitted


Finite-burn circularization of an elliptical orbit - OTB
This script circularizes an initial elliptical orbit by performing a finite-burn maneuver at apogee of the initial elliptical or...

1 day ago | 3 downloads |

0.0 / 5

Submitted


Gravity Perturbed Optimal Orbital Transfer Analysis - SNOPT
Optimal two impulse transfer subject to non-spherical gravity perturbations

14 days ago | 5 downloads |

0.0 / 5

Submitted


Gravity Perturbed Optimal Orbital Transfer Analysis - OTB
Optimal two impulse transfer subject to non-spherical gravity perturbations - Optimization Toolbox version

16 days ago | 2 downloads |

0.0 / 5

Submitted


Numerical Solutions of Kepler's Equation
A demo script for a suite of MATLAB functions for solving Kepler's equation.

19 days ago | 11 downloads |

4.5 / 5

Submitted


Optimal Impulsive Orbital Transfer - SNOPT version
MATLAB script for the solution of the one and two impulse orbit transfer between two Earth orbits.

24 days ago | 2 downloads |

0.0 / 5

Submitted


Optimal Impulsive Orbital Transfer - OTB version
MATLAB script for the solution of the one and two impulse orbital transfer between two Earth orbits.

26 days ago | 9 downloads |

5.0 / 5

Submitted


The Gravity Perturbed Hohmann Transfer - SNOPT version
MATLAB script for solving the Hohmann transfer problem perturbed by non-spherical Earth gravity.

28 days ago | 4 downloads |

5.0 / 5

Submitted


The Gravity-perturbed Hohmann Transfer - OTB version
MATLAB script that solves the non-spherical gravity-perturbed two impulse Hohmann orbit transfer problem.

29 days ago | 6 downloads |

5.0 / 5

Submitted


The Hohmann Orbit Transfer
Computes characteristics for coplanar and non-coplanar Hohmann orbit transfers.

1 month ago | 9 downloads |

5.0 / 5

Submitted


Earth-to-Mars End-to-End Mission Design – OTB
Create and optimize an end-to-end ballistic trajectory from Earth park orbit to encounter at Mars

1 month ago | 6 downloads |

0.0 / 5

Submitted


Gravity-assist Trajectory Optimization - SNOPT version
A MATLAB Script for Interplanetary Patched-Conic, Single Gravity-Assist Trajectory Design, Analysis and Optimization

2 months ago | 4 downloads |

3.7 / 5

Submitted


Gravity-assist Trajectory Optimization - OTB version
A MATLAB Script for Interplanetary Patched-Conic, Single Gravity-Assist Trajectory Design, Analysis and Optimization

2 months ago | 6 downloads |

0.0 / 5

Submitted


Hyperbolic Injection from a Circular Earth Park Orbit – OTB
Determine delta-v required for coplanar and non-coplanar impulsive hyperbolic orbit transfers using the Optimization Toolbox.

3 months ago | 3 downloads |

0.0 / 5

Submitted


Hyperbolic Injection from a Circular Earth Park Orbit SNOPT
MATLAB script for modeling interplanetary injection from an Earth escape hyperbolic orbit using the SNOPT programming method.

3 months ago | 2 downloads |

4.0 / 5

Submitted


Hyperbolic Injection from a Circular Earth Orbit
PDF document and script for computing the coplanar impulsive transfer from a circular Earth orbit to an interplanetary hyperboli...

3 months ago | 1 download |

0.0 / 5

Submitted


Trans-Lunar Trajectory Optimization – SNOPT
SNOPT version of the tlto script for designing preliminary trans-lunar missions from Earth park orbit to lunar encounter.

3 months ago | 3 downloads |

0.0 / 5

Submitted


Trans-Lunar Trajectory Optimization - OTB
Optimization Toolbox version of the tlto script for designing preliminary trans-lunar missions from Earth park orbit to lunar en...

3 months ago | 5 downloads |

5.0 / 5

Submitted


Designing Interplanetary Launch Trajectories
Preliminary design and analysis of interplanetary launch trajectories.

3 months ago | 6 downloads |

0.0 / 5

Submitted


Closest Approach Between a Ground Site and Earth Satellite
Determine the closest approach conditions between a ground site or observer and an Earth satellite in a circular or elliptical o...

4 months ago | 2 downloads |

0.0 / 5

Submitted


Orbital Inclination as a Function of Launch Azimuth
This script can be used to determine the relationship between orbital inclination and launch azimuth for a user-defined launch s...

5 months ago | 1 download |

0.0 / 5

Submitted


Predicting Shadow Conditions of Earth Satellites
Three MATLAB scripts for predicting shadow (Earth eclipse) conditions of satellites in circular and elliptical orbits.

5 months ago | 6 downloads |

0.0 / 5

Submitted


Predicting Rise and Set of an Earth Satellite
Three MATLAB scripts for predicting rise and set of an Earth satellite relative to an observer or ground site on an oblate Earth...

5 months ago | 1 download |

0.0 / 5

Submitted


Analytic Orbit Propagation – Method of Markley and Jeletic
Fast analytic orbit propagator using the method of Markley and Jeletic.

5 months ago | 1 download |

0.0 / 5

Submitted


MATLAB solutions of Lambert's problem
MATLAB functions and scripts for solving the geocentric and heliocentric Lambert problem.

5 months ago | 11 downloads |

4.7 / 5

Submitted


Finite-burn Interplanetary Injection from Earth Orbit SNOPT
A MATLAB script for optimizing finite-burn interplanetary injection trajectories from an initial circular Earth orbit using SNOP...

6 months ago | 2 downloads |

4.0 / 5

Submitted


Finite-burn Interplanetary Injection from Earth Orbit - OTB
Optimization Toolbox version of a MATLAB script that can be used to model finite-burn interplanetary injection from a circular E...

6 months ago | 3 downloads |

0.0 / 5

Submitted


Numerical Prediction of Orbital Events
MATLAB script and user's manual for predicting important root-finding and extrema type orbital events. Precision orbit propagati...

6 months ago | 3 downloads |

0.0 / 5

Submitted


A MATLAB implementation of the BDQRF root-finding algorithm
MATLAB function for calculating the single real root of a non-linear function using the Bisected Direct Quadratic Regula Falsi m...

7 months ago | 2 downloads |

0.0 / 5

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