Satellite Orbital Elements Database

The ground track of a satellite can take a number of different forms depending on the values of the orbital elements.

Satellite orbital elements database.

However the value of the same element e g. Now all the orbital elements in the satellite catalog satcat are available in the tle class. We provide this data as either keplerian osculating or mean element sets which include the two line and amsat formats. An index showing the composition of each two line element set data file all data is contained in the files above use it to find which file s you need to download.

Orbital status designation name in spacetrack catalog orbit. This index also includes links describing many satellite payloads. When a new satellite is launched there is some confusion regarding tles. In this section let us discuss about the equations which are related to orbital motion.

According to nasa more than 500 000 pieces of orbital debris as big as a marble or larger are tracked as they orbit the earth. 554 x 2937 km. Bulletin format elements for all satellites of interest to radio amateurs. This file is updated thursday evenings around 2300 utc or more frequently if new high interest satellites are.

Beware that the two line element tle format is very rigid. Orbital elements at epoch 2459042 5 2020 jul 12 0 tdb reference. The meaning of each character is based on its exact offset from the beginning of the line. Jpl 20 heliocentric ecliptic j2000.

More than 20 000 of these are larger than a softball. Forces acting on. Finding and loading satellite elements. The trajectory data which describes the motion of a satellite can take on a variety of formats.

The index includes information on age of each element set. You can find satellite element sets at the norad two line element sets page of the celestrak web site. Every elset already displays a value for the object s mean motion n and eccentricity e so we derive these additional four values using the following calculations. Look to amsat bb twitter and facebook for the latest information.

Satellite s ground track is the path on the surface of the earth which lies exactly below its orbit. Apogee may not match exactly. 650 x 3832 km.