Usage
WIP
Magnetic Models
- how to load and evaluate magnetic models 
- generic model interface 
- core and lithospheric models 
- magnetospheric models 
- ionospheric models 
- combined and composed models 
- field line tracing 
Coordinate Conversions
- magnetic coordinates
- Quasi-Dipole coordinates (with and without the base vectors) 
- Magnetic Local Time 
- dipole coordinates 
- magnetic universal time 
 
 
- geographic coordinates
- spherical coordinates 
- Cartesian coordinates 
- geodetic (WGS84) coordinates 
 
 
- vector rotations between different coordinate frames 
Time Conversions
- MJD2000 <=> decimal year 
- MDD2000 => year fraction 
Sun Positions
- sunpos
Utilities
- vector operations 
Low Level Spherical Harmonics
- legendre
- loncossin
- relradpow
- sheval
- sheval_dipole
- sphargrd
- spharpot