SOLAR SYSTEM

Detailed explanation-1: -Orbits and changing speed If the force between them is greater, a greater acceleration will occur. The greater the acceleration, the greater the change in velocity-this causes the object to move faster. This means that objects in small orbits travel faster than objects in large orbits.

Detailed explanation-2: -Unlike GEO satellites, LEO satellites also fly at a much faster pace because of their proximity to Earth. For example, an Iridium® satellite flies at approximately 17, 000 mph (completing an orbit every 100 minutes!), compared to a GEO satellite that typically flies around 7, 000 mph.

Detailed explanation-3: -Polar orbiting satellites provide imagery and atmospheric soundings of temperature and moisture data over the entire Earth. Geostationary satellites are in orbit 22, 000 miles above the equator, spin at the same rate of the Earth and constantly focus on the same area.

Detailed explanation-4: -Polar orbiters give better spatial coverage than to geostationary (global versus nearly hemispheric) but give worse temporal coverage (once to twice a day, in the tropics, versus continuous). GOES satellites provide the kind of continuous monitoring necessary for intensive data analysis.