Vision

Here are some thoughts about how the package should be (actually taken from the features) and what consequences they have.

• Pythonic interface - It should be intuitive and simple to use
• Use of SI units - Perhaps astropy.units should be used! I tried in poliastro successfully
• Support of NumPy arrays - Vectorization is a must! The very first use case is obtaining an array of properties in a domain of altitudes. This is perfect for plotting, but complicates library code.
• Support for both Python 2 and 3 - Probably some continuous integration server is needed! Travis CI works very well.
• Fully tested and documented - I need full coverage and better docs. API references are not enough.