A dynamic algorithm for processing uncorrelated tracks Conference Paper uri icon


  • Tracks of space objects which do not correlate to a known space object are called uncorrelated tracks (UCTs). The association of UCTs to develop an ephemeris, and subsequently a new catalogued object, has typically been a manual process which requires significant time by the analysts. The algorithm used for track association is a static algorithm in that it does not directly take into consideration the uncertainties in the ephemerides determined from the individual tracks. In this paper a dynamic algorithm based on the track uncertainty (covariance) is proposed and analyzed. The efficacy of the algorithm is based on two new properties: a) The volume of the equiprobability ellipsoid is constant in time, even though the shape changes, and b) The probability of association is maximized by using this ellipsoid for association.

author list (cited authors)

  • Alfriend, K. T.

publication date

  • December 1998