Flavien Mercier (CNES, France); Alexandre Couhert (CNES, France); Eva Jalabert (CNES, France); Sabine Houry (CNES, France)

Some studies related to the geocenter motion or DORIS positioning need to take into account low-elevation measurements and a consistent editing process. A new preprocessing is implemented using DORIS residuals adjustment on tropospheric mapping model corrections.
As low-elevation measurements are now considered, the orbit determination process needs to integrate a weighting function. This paper shows the results on the Jason-1 and OSTM/Jason-2 altimeter missions of these new preprocessing and weighting function.