Precise orbit determination
The primary application of DORIS is in support of orbit determination and it shares the applications which make use of this orbit, principally from the RA-2 instrument.
Ionospheric electron density
The dual-frequency DORIS system enables estimations of the total amount of free electrons in the ionosphere. Such data form a separate data product.
Ground beacon localisation
DORIS ground location beacons are foreseen to provide a position determination service.