Earth orbital

SNAP v2.3:

Go to GRC Commercial Technology Office site: 
(http://technology.grc.nasa.gov/)

Click on "New User Registration" if you have not registered with them before, or just sign in if you have registered with them.

Interplanetary Programs

MALTO v4.4 and Mystic v9.0:

1. The preferred method to obtain the software is to send an e-mail to softwarerelease@jpl.nasa.gov.
2. That requester will then receive a form to fill out to get the software.  The form requires information regarding the recipient, including contact information and citizenship, government contracting information, and purpose for use.  This type of distribution enables the development and maintenance of metrics likely to be of greatest interest to the In-Space Propulsion Program, such as level of demand and areas of application of the software.
   
3. Any governmental agency or anyone who is working under a government contract that requires either software tool can use it royalty free.  Others may be charged a fee, depending on the desired use.
4. Distribution, with the appropriate copyright statements and export marking language, of the software will be through JPL's Software Release process (see above).  Both Mystic and MALTO are ITAR controlled, Category 15F.

Copernicus v3_28_06:

The preferred method for others to obtain the software is to send an e-mail to Larry.Kos@nasa.gov.  The requester will receive a form to fill out to get the software.

The form requires information regarding the recipient, including contact information and citizenship, government contracting information, and purpose for use.  This type of distribution enables the development and maintenance of metrics likely to be of greatest interest to the In-Space Propulsion Program, such as level of demand and areas of application of the software.

Note for both above:
Any governmental agency or anyone who is working under a government contract that requires the software can use it royalty free.

OTIS v4.0:

Go to GRC Commercial Technology Office site:  [http://technology.grc.nasa.gov/]

Click on "New User Registration" if you have not registered with them before, or just sign in if you have registered with them.

CHEBYTOP version 6.1ss: CLICK HERE TO DOWNLOAD

This .zip fle, contains:
1.  CHEBYTOP.dll
2.  DFFORT.dll
3.  Starter example workbook
4.  CHEBYTOP User’s Guide

CHEBYTOP v6.1ss -  Chebyshev polynomial Trajectory Optimization Program (CHEBYTOP) is an easy to use, low-fidelity low-thrust interplanetary trajectory tool for “first-look” type analyses.  This tool uses a Chebyshev polynomial approximation method to generate trajectories.  Due to the nature of low-fidelity tools, this is a limited application tool.  This tool is an ideal starting place for 1st-year graduate students (or equiv.) pursuing research in the area of low-thrust trajectory analysis.