The CNES/CLS Analysis Center is in charge of DORIS data analysis for orbitography and geodectic purposes.
The processing of the DORIS data is performed using the GINS/DYNAMO software package developed by the GRGS (Groupe de Recherche de Géodésie Spatiale).
Precise DORIS orbits are determined together with Earth rotation parameters and stations coordinates.
Products of the Analysis Center contribute to the combination of the International DORIS Service (IDS).

Main events

2015 Delivery of GRG weekly SINEX (1993-2014) for the IDS contribution to ITRF2014 (station coordinates time series can be visualized here)
2014 The 3-letter code of the AC is changed to GRG, to harmonize the names of GRGS products for the geodetic services
2008 Contribution to the ITRF2008
2008 CNES/LEGOS stops its participation but it is taken over by the CNES team of the GRGS (Groupe de Recherche de Géodésie Spatiale). The AC is now presented as the CNES/CLS Analysis Center
2005 Contribution to the ITRF2005
2000 Contribution to the ITRF2000
2000 The AC, in association with CLS, becomes a component of the International DORIS Service (IDS). Its 3-letter code is LCA for LEGOS/CLS Analysis center
1997 Contribution to the ITRF97
1996 Contribution to the ITRF96
1994 Contribution to the ITRF94
1994 The CNES team of the LEGOS (Laboratoire d'Etudes en Géodésie et Océanographie Spatiales, i.e the Geophysics and Spatial Oceanography Study Laboratory) forms a DORIS Analysis Center (AC) for the International Earth Rotation and Reference Systems Service (IERS)