DORIS Organisation

DORIS system Responsibility

CNES	System development and maintenance, precise orbit determination
GRGS	Earth gravity field, precise localisation and geodesy
IGN	Network development and maintenance, precise localisation and geodesy

Customer Space Agencies

ESA	Envisat, Cryosat
NASA, NOAA, EUMETSAT	Topex-Poseidon, Jason-1, Jason-2, Jason-3
ISRO	Altika
CNSA	HY2

Development Contractors

CLS CISI	Operation, ground developments DORIS Control Center development
DACTEM	Ground Tests Equipments
SMP OSA CHELTON	Beacons (3rd generation) Oscillators Antennas
THALES CHELTON RAKON COFRAMI	On-board Instruments Antennas Oscillators On-board software specific functions