Thursday, March 18, 2010

Two-Line Element Set(TLE) for satellites orbit.

Two-Line Element Set(TLE) is a set or orbital elements that describe the orbit of an Earth Satellite. This elements set is use by computer program such as Orbitron, Satscape, Winorbit and many more to compute the precise position of a satellite of a particular time in orbit. TLE format is specified by NORAD(North America Aerospace Defence) and NASA.

Format example(for ISS Zarya)

ISS (Zarya)
1 25544U 98067A 08264.51782528 -.00002182 00000-0 -11606-4 0 2927
2 25544 51.6416 247.4627 0006703 130.5360 325.0288 15.72125391563537

TLE Data can be downloaded for tracking use from Celestrak and SpaceTrack.

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