Date: Tue, 19 Nov 2002 13:44:24 -0600 From: "John C. Ries" To: Pascal Willis , Nikita Zelensky Cc: jean-paul.berthias@cnes.fr, bjh@cobra.jpl.nasa.gov, Yoaz.Bar-Sever@jpl.nasa.gov, sluthcke@xyz.gsfc.nasa.gov, krchoi@csr.utexas.edu, feissel@ensg.ign.fr Subject: Re: JASON DORIS phase center and SAA effect my two cents worth...I found a slight advantage to using all DORIS stations for POD, at least as measured by the crossover rms. For geodesy, I would have to exclude the stations with anomalies. I would also probably exclude them for estimating things like the phase center offsets. But it appears that the results are more consistent with what we would expect when all stations are used. This in itself doesn't prove anything, but it is intriguing. As Pascal suggests, is there perhaps something that propagates through all the data, such that not using the anomalous stations actually makes things worse? JR