# standard gravitational parameter for Earth = G*M
EARTH_GRAV_CONST = 3.986005e5  # (km^3/s^2)

# Earth Radius
EARTH_RADIUS = 6378.137  # (km)

# Earth rotation speed (calculated from sideral period)
EARTH_ROT_RATE = 6.300387486749 / 86164  # (rad/s)

# Earth gravitation at sea leve
EARTH_GRAV_SEA_LVL = 9.80665  # (m^2/s)
