NASA NTRS · 19730019002
GPS early-orbit subsystem for earth satellites
Abstract
The early-orbit capability of the Goddard Trajectory Determination System, which determines starting vectors for earth satellites from angles-only or range-angles observations, is described and documented. Early-orbit results obtained from a variety of satellites, data types and methods of solution are also presented.
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Laczo, V. T., Maury, J. L.. 1972-12-01. GPS early-orbit subsystem for earth satellites. https://ntrs.nasa.gov/citations/19730019002
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