orbdata

Documentation

Overview

Package orbdata contains useful contstants and defined orbits of the solar system.

In here you will find Gravitational constants of the major planets

Index

• Constants
• Variables

Constants

const AU = 149598000

AU represents the length of an Astronomical Unit in KiloMeters

const EarthGrav = 398600.44180000003

EarthGrav gravitational constant for Earth centric orbits (km^3)/(s^-2)

const JupiterGrav = 126712762.53

JupiterGrav gravitational constant for Jupiter centric orbits (km^3)/(s^-2)

const MarsGrav = 42828.3744

MarsGrav gravitational constant for Mars centric orbits (km^3)/(s^-2)

const MercuryGrav = 22032.09

MercuryGrav gravitational constant for Mercury centric orbits (km^3)/(s^-2)

const MoonGrav = 4902.79981

MoonGrav gravitational constant for Moon centric orbits (km^3)/(s^-2)

const NeptuneGrav = 6836527.100580397

NeptuneGrav gravitational constant for Neptune centric orbits (km^3)/(s^-2)

const SaturnGrav = 37931207.7

SaturnGrav gravitational constant for Saturn centric orbits (km^3)/(s^-2)

const SunGrav = 132712442099.00002

SunGrav IAU2009 Heliocentric gravitational constant (km^3)/(s^-2)

const UranusGrav = 5793939.300000001

UranusGrav gravitational constant for Uranus centric orbits (km^3)/(s^-2)

const VenusGrav = 324858.592

VenusGrav gravitational constant for Venus centric orbits (km^3)/(s^-2)

Variables

var EarthOrbit = orbcore.Orbit{
	ID:                          "Earth",
	ParentGrav:                  SunGrav,
	Epoch:                       J2000,
	MeanAnomalyEpoch:            6.039693392708146,
	ArgumentOfPerihelion:        1.4877567222443007,
	LongitudeOfTheAscendingNode: 8.219803446009808e-05,
	InclinationToTheEcliptic:    0.9e-07,
	OrbitalEccentricity:         0.023506053256160484,
	SemimajorAxis:               1.49597887e8,
}

EarthOrbit defines the standard earth orbit.

var InnerSolarSystem = []orbcore.Orbit{
	MercuryOrbit,
	VenusOrbit,
	EarthOrbit,
	MarsOrbit,
}

InnerSolarSystem is a collection of major bodies in the inner solar system

var J2000 = time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)

J2000 is the base time epoch of a lot of astronomical times.

var JupiterOrbit = orbcore.Orbit{
	ID:                          "Jupiter",
	ParentGrav:                  SunGrav,
	Epoch:                       J2000,
	MeanAnomalyEpoch:            3.986624571747394,
	ArgumentOfPerihelion:        0.22894709895829354,
	LongitudeOfTheAscendingNode: 0.056682739190454204,
	InclinationToTheEcliptic:    0.0227818,
	OrbitalEccentricity:         0.05041232826440195,
	SemimajorAxis:               7.78412027e8,
}

JupiterOrbit defines the standard Jupiter orbit.

var MarsOrbit = orbcore.Orbit{
	ID:                          "Mars",
	ParentGrav:                  SunGrav,
	Epoch:                       J2000,
	MeanAnomalyEpoch:            0.9016227920497925,
	ArgumentOfPerihelion:        5.804221558977953,
	LongitudeOfTheAscendingNode: 0.059136325715984754,
	InclinationToTheEcliptic:    0.0322992,
	OrbitalEccentricity:         0.09853112210172534,
	SemimajorAxis:               2.27936637e8,
}

MarsOrbit defines the standard mars orbit.

var MercuryOrbit = orbcore.Orbit{
	ID:                          "Mercury",
	ParentGrav:                  SunGrav,
	Epoch:                       J2000,
	MeanAnomalyEpoch:            0.7363828677023899,
	ArgumentOfPerihelion:        1.290398137330985,
	LongitudeOfTheAscendingNode: 0.19016162418731905,
	InclinationToTheEcliptic:    0.122258,
	OrbitalEccentricity:         0.2161872518335417,
	SemimajorAxis:               5.7909176e7,
}

MercuryOrbit defines the standard mercury orbit

var NeptuneOrbit = orbcore.Orbit{
	ID:                          "Neptune",
	ParentGrav:                  SunGrav,
	Epoch:                       J2000,
	MeanAnomalyEpoch:            5.100969108525634,
	ArgumentOfPerihelion:        0.8712884041923264,
	LongitudeOfTheAscendingNode: 0.060720496894987035,
	InclinationToTheEcliptic:    0.0308778,
	OrbitalEccentricity:         0.011600603763700122,
	SemimajorAxis:               4.49825291e9,
}

NeptuneOrbit defines the standard Neptune orbit.

var OuterSolarSystem = []orbcore.Orbit{
	JupiterOrbit,
	SaturnOrbit,
	UranusOrbit,
	NeptuneOrbit,
}

OuterSolarSystem is a collection of major bodies in the outer solar system

var SaturnOrbit = orbcore.Orbit{
	ID:                          "Saturn",
	ParentGrav:                  SunGrav,
	Epoch:                       J2000,
	MeanAnomalyEpoch:            3.2720797523951766,
	ArgumentOfPerihelion:        1.5276434137035415,
	LongitudeOfTheAscendingNode: 0.10399170848152173,
	InclinationToTheEcliptic:    0.043362,
	OrbitalEccentricity:         0.05853326249640754,
	SemimajorAxis:               1.42672541e9,
}

SaturnOrbit defines the standard Saturn orbit.

var SolarSystem = []orbcore.Orbit{
	MercuryOrbit,
	VenusOrbit,
	EarthOrbit,
	MarsOrbit,
	JupiterOrbit,
	SaturnOrbit,
	UranusOrbit,
	NeptuneOrbit,
}

SolarSystem is a collection of major bodies in the solar system

var SolarSystemBox = orbcore.BoundingBox{}

SolarSystemBox defines a bounding box containing the solar system.

var UranusOrbit = orbcore.Orbit{
	ID:                          "Uranus",
	ParentGrav:                  SunGrav,
	Epoch:                       J2000,
	MeanAnomalyEpoch:            3.8644829632802806,
	ArgumentOfPerihelion:        2.926548412800625,
	LongitudeOfTheAscendingNode: 0.03235322856941487,
	InclinationToTheEcliptic:    0.013437,
	OrbitalEccentricity:         0.044645557888114,
	SemimajorAxis:               2.87097222e9,
}

UranusOrbit defines the standard Uranus orbit.

var VenusOrbit = orbcore.Orbit{
	ID:                          "Venus",
	ParentGrav:                  SunGrav,
	Epoch:                       J2000,
	MeanAnomalyEpoch:            6.024347789858294,
	ArgumentOfPerihelion:        1.8790979389622697,
	LongitudeOfTheAscendingNode: 0.13963804205942293,
	InclinationToTheEcliptic:    0.0592489,
	OrbitalEccentricity:         0.017361719534212148,
	SemimajorAxis:               1.0820893e8,
}

VenusOrbit defines the standard mercury orbit