Earth's authalic radius (meaning "equal area") is the radius of a hypothetical perfect sphere that has the same surface area as the reference ellipsoid. The IUGG denotes the authalic radius as R 2. A closed-form solution exists for a spheroid: See more Earth radius (denoted as R🜨 or $${\displaystyle R_{E}}$$) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid, the radius ranges from a … See more Geocentric radius The geocentric radius is the distance from the Earth's center to a point on the spheroid surface at geodetic latitude φ: See more The Earth can be modeled as a sphere in many ways. This section describes the common ways. The various radii derived here use the … See more Earth's diameter is simply twice Earth's radius; for example, equatorial diameter (2a) and polar diameter (2b). For the WGS84 ellipsoid, that's respectively: • 2a = 12,756.2740 km (7,926.3812 mi), • 2b = 12,713.5046 km (7,899.8055 mi). See more Earth's rotation, internal density variations, and external tidal forces cause its shape to deviate systematically from a perfect sphere. Local See more The following radii are derived from the World Geodetic System 1984 (WGS-84) reference ellipsoid. It is an idealized surface, and the Earth measurements used to calculate it have an uncertainty of ±2 m in both the equatorial and polar dimensions. … See more The mathematical expressions above apply over the surface of the ellipsoid. The cases below considers Earth's topography, above or below a reference ellipsoid. As such, they are topographical geocentric distances, Rt, which depends not only on latitude. See more Web16 rows · R = earthRadius returns the scalar value 6,371,000, the mean radius of the Earth in meters. example R = earthRadius (lengthUnit) returns the mean radius of the Earth …
Earth Fact Sheet - NASA
WebMar 13, 2024 · Earth is a rocky body constantly moving around the sun in a path called an orbit. Earth and the moon follow a slightly oval-shaped orbit around the sun every year. Each journey around the sun, a trip of about … WebThe red dot at the lower left corner is its center. The dashed line designates the radius to one point on the surface. Its "up" direction there is shown with a black segment: it is, by … imo phone instructions
Solved NASA launches a satellite into orbit at a height Chegg.com
WebExplanation:The only force acting on the satellite is the gravitational force from earthAccording to law of gravitation, Gravitational Force= Fg=Gm1m2 …. NASA launches a satellite into orbit at a height above the surface of the Earth equal to the Earth's mean radius. The mass of the satellite is 630 kg. WebA low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, with an altitude never more than about one-third of the radius of Earth.. The term LEO region is also used for the area of space below an … WebAssume Earth's mean radius is RE=6,373km, and Earth's mass is M=5.99×1024 kg Use G = 6.67x1011 m° kg- 1 s-2 for Universal Gravitational Constant. Find the satellite's orbital speed (in km/s). A 872kg satellite is in a circular orbit about Earth at a height h=5,568km above Earth. Assume Earth's mean radius is RE=6,373km, and Earth's mass is M ... i mop hinta