orbits: Types and functions for Kepler orbits.

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Properties

Versions 0.3, 0.3, 0.4, 0.4.0.1
Change log changelog.md
Dependencies ad (>=4.3.2), base (>=4.8 && <5), exact-real (>=0.12), units, units-defs (>=2.2) [details]
License BSD-3-Clause
Copyright 2020 Joe Hermaszewski
Author Joe Hermaszewski
Maintainer Joe Hermaszewski <keep.it.real@monoid.al>
Category Physics
Home page https://github.com/expipiplus1/orbit#readme
Bug tracker https://github.com/expipiplus1/orbit/issues
Source repo head: git clone https://github.com/expipiplus1/orbit
Uploaded by jophish at 2020-05-29T14:21:26Z

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Readme for orbits-0.3

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orbit

For my uncle Zbys who watched the planets and stars.


Types and functions for dealing with Kepler orbits.

The main data type is Orbit, which describes the path of a body in orbit.

Nomenclature

Symbol Meaning Notes
a Semi-major axis Negative for hyperbolic orbits
b Semi-minor axis Negative for hyperbolic orbits
e Eccentricity
q Periapsis
i Inclination
μ Standard gravitational parameter
Ω Longitude of the ascending node
l Semi-latus Rectum
n Mean motion
p Period
t Time since periapse
M Mean anomaly
E Eccentric anomaly Only for elliptic orbits
ν True anomaly

Note that in the Haskell source uppercase symbols such as Ω and M are written with a leading underscore.

Implementation

This package makes use of the units package to ensure that the implementation is correct regarding units of measure.

Contributing

Contributions and bug reports are welcome!

Please feel free to contact me on GitHub or as "jophish" on freenode.

-Joe