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Lookup NU author(s): Professor Philip Moore
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The spatial and temporal variations in dual crossovers (DXO) data between ERS-2 and TOPEX/Poseidon are identified for three orbital computations for ERS-2. The differences between the orbits and underlying gravity field result in non-zero means in the first-order spherical harmonic coefficients. Temporal variability is observed particularly at the annual cycle but the amplitude is orbital dependent with the DPAF orbits on the ERS-2 CD ROMs showing the largest annual signal. It is concluded that improvement in consistency between ERS-2 and TOPEX may be achieved by multi-satellite orbit computations where the two orbits are connected by dual crossover data.
Author(s): Moore P
Publication type: Article
Publication status: Published
Journal: European Space Agency, Special Publication
ISSN (print): 0379-6566
ISSN (electronic): 1609-0438