Satellite Orbit Determination Methods

As compared with the precise orbit determination and time synchronization method of other global navigation satellite system gnss a combined process of precise orbit determination and time synchronization is generally adopted to obtain predicted orbit and predicted clock parameters due to its pecularity of the ground monitoring network range.

Satellite orbit determination methods.

First steps 1957 1970 satellite geodesy began shortly after the launch of sputnik in 1957. The method is not only for determination of satellite orbit but also for the time transfer with high accuracy and precision. Orbit determination of an artificial satellite requires as input measurements that are related to the satellite s position or velocity. Observations of explorer 1 and sputnik 2 in 1958 allowed for an accurate determination of earth s flattening.

One major application is to allow tracking newly observed asteroids and verify that they have not been previously discovered. Creates a tle from two or three observations of a satellite on a single pass. Satellite orbits models methods and applications has been written as a compre hensive textbook that guides the reader through the theory and practice of satellite orbit prediction and determination. Starting from the basic principles of orbital mechanics it covers elaborate force models as weh.

A neural network state observer was designed to estimate the state of the geo satellite with only the intersatellite ranging information as observations. The combination of various signals disseminated and. In order to obtain orbital elements of a satellite from angular measurements there are three approaches. The advantage is that the accuracy and the precision for determination of satellite orbit are very high and the new method is favorable for various applications.

The 1960s saw the launch of the doppler satellite transit 1b and the balloon satellites echo 1 echo 2 and pageos the first dedicated geodetic satellite was anna 1b a collaborative effort. Preliminary orbit determination using the gauss and the double r iteration methods. The basic methods were discovered in the 17th century and have been continuously refined. Precise orbit determination pod method rely on techniques similar to those used high precision geodetic receivers such as carrier phase and rtk tailored and optimized for orbit determination.

Useful for initial orbit parameters and for unknown satellite identification. In order to improve the autonomy of a maneuvered geo satellite which is a member of a navigation satellite system an integrated design method of autonomous orbit determination and autonomous control was proposed. Orbit determination is the estimation of orbits of objects such as moons planets and spacecraft.