Beyond

Added

- Tests for maneuver handling in CCSDS OPM
- OrbitInfos class for rapid orbit additional informations (velocity, perapside radius, etc.)
- Maneuvers have a optional 'comment' field, allowing to give more information
- Declare a maneuver as a increment of keplerian elements with DeltaCombined
- SOIPropagator for rapid extrapolation through multiple Sphere of Influence

Changed

- `jpl.get_body()` now returns a Body instance and not an Orbit
- Maneuvers now check themselves for application
- The time resolution of a speaker/listener can be modified per class/instances
- 'lambda' and 'λ' are replaced by the argument of latitude u = ω + ν in the Keplerian Circular form
- A big pass over all comments and documentation regarding English

Added

- Better logging integration
- Terminator detection
- QSW aliases

Changed

- TLE epoch parsing before 2000
- Apside, Node and light listeners now computing in the propagator reference frame

Added

- Visibility allow passing user listeners and merge them with station listeners
- Better describe when a wrong argument type is provided to ``Date`` constructor

Changed

- Better ``Date`` subclass handling
- When interpolating an ``Ephem`` object, the research for the good points is faster
due to the use of binary search, particularly when dealing with long ephemeris files

Added

- Tle generator error handling
- Maneuvers for the Kepler propagator
- CCSDS handling of maneuvers
- Possibility to have tolerant ephems regarding date inputs
- Entry points for EOP databases registration
- JPL module now callable on bsp files for details on content
- Python 3.7 compatibility and tests
- Library custom errors
- Config set method
- Ephem object deep copy and conversions

Changed

- Eop acquisition is done at Date creation, instead of at frame transformation
- get_body only allows one body selection at a time

Removed

- Station propagation delay : The method was heavy and not entirely correct, if not totally wrong

Added

- TLE tests and coverages
- Possibility to compute passes with light propagation delay taken into account
- CCSDS OEM handle multiple Ephems
- CCSDS handling of frame central body
- JPL frames bulk creation
- JPL .tpc files handling for frame central body definition
- Date.strftime
- Define a mask for a station

Changed

- The CCSDS API now mimicks the json (load, loads, dump, dumps)
- Frames translation now directly with vectors
- Node harmonization, only one implementation used
- Stations handling has a proper module
- MIT license

Added
- Config get() method to implement default behavior in case of missing parameter
- Documentation of orbital forms (cartesian, keplerian, etc.)
- TDB timescale
- Tle now keep any keyword argument passed in a kwargs attribute
- Others listeners can be added to a visibility computation
- Possibility to issue an error, a warning or nothing in case of missing Earth Orientation Parameters
- Possibility to define a custom Earth Orientation Parameters database

Removed
- The config variable does not depend on a specific file anymore (previously ConfigParser, then TOML)
but is a dictionary

Changed
- replacement of incorrect 'pole_motion' functions and variables names for
'earth_orientation'
- Moon analytic position now computed with respect to TDB timescale
- A Listener does not return a string anymore, but an Event object
- Tests are now conducted by tox