TYCHO is freely available to everyone. You are welcome to download it and do whatever you want with it. I would appreciate, however,
if you would acknowledge the package in you publications/work and if you send me information for what purpose you use the code.
The code is based on the freely available http://wonka.physics.ncsu.edu/pub/VH-1/index.phpVH-1 package.
Keep in mind that this code does not come with any guarantee.
If you need help or you want to highlight a bug/error (which I would appreciate) you can contact me via the channels provided at the website of this project.