| parameter |
symbol |
alue |
| defining constants |
|
|
| equatorial radius of the Earth |
a |
6378137 m |
| geocentric gravitational constant |
|
|
| (including the atmosphere) |
GM |
3986005 · 108 m3s-2 |
| dynamical form factor |
|
|
| (excluding permanent tides) |
J2 |
108263 · 10-8 |
| angular velocity of the Earth |
w |
7292115 · 10-11 rad s-1 |
| derived geometrical parameters |
|
|
| semiminor axis (polar radius) |
b |
6356752.3141 m |
| first excentricity |
e2 |
0.00669438002290 |
| flattening |
f |
1 : 298.257222101 |
| mean radius |
R1 |
6371008.7714 m |
| radius of sphere with same surface |
R2 |
6371007.1810 m |
| radius of sphere with same volume |
R3 |
6371000.7900 m |
| derived physical parameters |
|
|
| normal potential at ellipsoid |
U0 |
62636860.850 m2s-2 |
| Normal gravity at equator |
ge |
9.7803267715 m s-2 |
| Normal gravity at pole |
gp |
9.8321863685 m s-2 |
