What is meant by geosynchronous orbit? Sun-synchronous orbit A satellite orbit that remains constant in relation to the Sun, passing close to both poles and crossing the meridians at an angle. It's important to note that, although the name implies it, the orbit is … Benefits or advantages of Sun synchronous orbit. Since there are 365 days in a year and 360 degrees in a circle, it means that the satellite has to shift its orbit by approximately one degree per day. This means they are synchronised to always be in the same ‘fixed’ position relative to the Sun. What is meant by geosynchronous orbit? This means that the satellite always visits the same spot at the same local time – for example, passing the city of Paris every day at noon exactly. The L6 Handbook tells us, “for a nominal sun-synchronous orbit (i.e., one that precesses at a rate of 0.9856°/day or 360°/year), the scene and spacecraft illumination conditions vary throughout the year but repeat on a yearly cycle. ESA – L. Boldt-Christmas

For the Terra satellite for example, it’s always about 10:30 in the morning when the satellite crosses the equator in Brazil.

Sun-synchronous orbit (SSO) is a particular kind of polar orbit. A satellite in a Sun-synchronous orbit would usually be at an altitude of between 600 to 800 km. Hence, an object in geo-synchronous will always appear stationary at all times from earth. The 800 km orbit is much more important than the LTAN. More technically, it is an orbit arranged so that it precesses through one complete revolution each year, so it always maintains the same relationship with the Sun.

The Zeya satellite was used for navigation and geodesy tests from a sun-synchronous orbit.

The geostationary orbit is a geosynchronous orbit, which has an inclination and a zero eccentricity.

Geo-synchronous orbits are those orbits in which object revolves in the same time as taken by earth rotation on its axis. The sun-synchronous orbit is one of the most frequently used orbits for earth science missions. Generally within the field of astrodynamics and mission analysis, the sun-synchronous orbit is understood to be a near polar orbit where the nodal precession rate is matched to the earths mean orbital rate around the sun. Orbview-2 American civilian surveillance satellite. However in a sun synchronous orbit, the satellite passes over the same part of the Earth at roughly the same local time each day which provides nearly same surface illumination every time. ... English dictionary definition of sun-synchronous orbit. A Sun-synchronous orbit (sometimes called a heliosynchronous orbit [1]) is a geocentric orbit which combines altitude and inclination in such a way that an object on that orbit will appear to orbit in the same position, from the perspective of the Sun, during its orbit around the Earth. For a few of those successive 100 minute orbits, it's going to spend close to 1/2 of the orbit in eclipse. Sun Synchronous orbit is a special case of the polar orbit where the satellite travels from the north to the south poles. Satellites in SSO, travelling over the polar regions, are synchronous with the Sun.

An example of a semi-synchronous orbit for real world scientific applications is a Molniya orbit. More technically, it is an orbit arranged so that it precesses through one comple