BOTEC is a simple but useful calculator that
assists with astrophysical, orbital mechanics,
and space navigation calculations. It is
a "back-of-the-envelope calculator" rather
than an industrial-strength calculator,
although this may change in the future. It is
primarily intended for people familiar with
physics and Python, and as such is unlikely to
be useful to the average end user. It includes
solar system data, and all values are strictly in
SI units.
