Two-Line Element Two Line Element Set English Two-line element set TLE English English http://en.wikipedia.org/wiki/Two-line_element_set http://en.wikipedia.org/wiki/Two-line_element_set English NORAD Wikipedia English English English English TLE http://en.wikipedia.org/wiki/Two-line_element_set two-line element set English TLE TLE file TLE’s TLE http://en.wikipedia.org/wiki/Two-line_element_set English “two line elements” (TLEs) TLE’s English English English