TY - RPRT TI - Observations of geographically correlated orbit errors for TOPEX/Poseidon using the global positioning system AU - Christensen, E. J. AU - Haines, B. J. AU - Mccoll, K. C. AU - Nerem, R. S. PY - 1994 UR - https://ntrs.nasa.gov/citations/19950047328 ID - 19950047328 ER -