IGN
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Email: altamimi@ensg.ign.fr

Since the beginning of the ITRF activities in 1988, the Analysis Centers of the Satellite Laser Ranging (SLR) technique contributed significantly to the International Terrestrial Reference Frame (ITRF). Moreover in terms of datum definition, some SLR solutions were used in the origin and scale definition of the ITRF. In this paper we will review the SLR contribution to the ITRF in terms of network, origin, scale as well as quality assessment. Some aspects related to the optimal establishment of a global reference frame will be examined in case of SLR technique taking into account the reality of its current network configuration. Future ITRF directions will be presented and in particular the inclusion of Earth Orientation Parameters in the ITRF combination. Some combination tests, thanks to ILRS AC's contributions, will be used to discuss the frame parameters.

Oral presentation; received August 30, 2002