Orbital Mechanics Library: Constants.m - File Exchange

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Highlights from
Orbital Mechanics Library

CalcEA(M,ecc,tol) Orbit eccentric anomaly, Kepler's equation keplers equation
Groundtrack(Kepler,GMSTo,Tf,f... Orbit groundtrack plot Latitude longitude lat long
Hohmann(R_init,R_fin,U) Orbit Hohmann transfer
JD(yr,day) Julian Date
KeplerCOE(Ro,Vo,dT,U,tol) Orbit Kepler position velocity
NodeChange(dO,inc,Vinit) Node change right ascension of the ascending node RAAN raan orbit
R1(x) Rotation matrix direction cosine matrix
R2(x) Rotation matrix direction cosine matrix
R3(x) Rotation matrix direction cosine matrix
RVtoLatLong(ECEF) orbit radius velocity latitude longitude ECEF
TwoBody(t,X,U) Two body Orbit gravity
dInc(V,dI,fpa) Inclination change orbit gravity
dVdI(R_init,R_fin,Inc,U,Tol) Inclination change velocity change orbit hohmann transfer
ecef2eci(ECEF, GST, V_ECEF) Orbit ECEF ECI Coordinate conversion
eci2ecef(ECI, GST, V_ECI) Orbit ECEF ECI Coordinate conversion
elorb(R,V,U,tol) Kepler orbital elements ECI Position orbit conversion
nuFromM(M,ecc,tol) Kepler Orbit Anomaly true mean
nuFromTp(Tp,ecc,n,tol) Kepler Orbit Anomaly true time periapse perigee
plotorb(ECEF, V_ECEF, mu, Rbo... Orbit gravity plot orbit spherical
randv(a,ecc,inc,Omega,w,nu,U) Kepler orbital elements ECI Position orbit conversion
topo(ECEF, lat, long, h, Rp) Orbit range elevation azimuth position ground station site latitude longitude
zeroTo360(x,unit) Angle reduce reduction degrees radians
Constants.m
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from Orbital Mechanics Library by Richard Rieber
A compilation of all of the functions I wrote for my orbital mechanics class

Constants.m

G = 6.673e-20; %km^3/km/s^2
R_earth = 6378.1363; %km
mu_earth = 398600.4415; %km^3/s^2
mass_earth = 5.9742e24; %kg
w_earth = 7.2921158553e-5; %rad/s

a_earth = 149598023; %km
e_earth = 0.016708617;
e_long_perh = 102.93734808; %deg
e_per = 0.99997862; %yrs

R_moon = 1737.5; %km
mu_moon = 4902.801; %km^3/s^2 per JPL
mass_moon = 7.3483e22; %kg

au = 149597870; %km
mu_sun = 1.32712428e11; %km^3/s^2

a_mars = 1.52367934*au; %km
R_mars = 3397; %km
mu_mars = 4.305e4; %km^3/s^2


a_venus = 108208601; %km

Highlights from Orbital Mechanics Library

Highlights from
Orbital Mechanics Library