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Parametric Analysis of TLI Delta-V Lunar Transfer

version (706 KB) by David Eagle
Parametric Analysis of Minimum TLI Delta-V Lunar Transfer Trajectories


Updated 25 Feb 2020

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PDF document and a MATLAB script called tli_sweep that can be used to perform a parametric analysis of lunar transfer trajectories. The software assumes that trans-lunar injection (TLI) occurs impulsively from a circular Earth park orbit. The software solves for the minimum TLI delta-v using a two-body Lambert solution for the transfer trajectory from the Earth park orbit to the center of the moon.
This computer program uses the SNOPT nonlinear programming (NLP) method to solve this classic trajectory optimization problem. The lunar coordinates required by the software are computed using the JPL DE430 ephemeris.

Cite As

David Eagle (2020). Parametric Analysis of TLI Delta-V Lunar Transfer (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (0)


Added park orbit TLI true anomaly and RAAN control variables to perturbed motion optimization. Updated PDF documentation.

Add version of main script file (tli_sweep_64bit) that uses the March 17, 2014 64 bit version of SNOPT.

Added option to solve the problem using "perturbed" orbital motion. Updated PDF document.

MICE version contained in archive.

MATLAB Release Compatibility
Created with R2012b
Compatible with any release
Platform Compatibility
Windows macOS Linux