Tracking Landsat-5 by a differential GPS techniqueAs part of an international campaign to develop precise geodetic applications of the Global Positioning System (GPS), the Jet Propulsion Laboratory is conducting a demonstration of differential GPS tracking using Landsat-5. Two strategies have been investigated: one in which only the Landsat-5 orbit is estimated, and one in which both the Landsat-5 and GPS orbits are estimated together. Error studies show that under the limited conditions of the experiment, three-dimensional Landsat-5 position accuracies of about 5 m with the first strategy and 2 m with the second strategy can be achieved over a 20-min period of good observing geometry. Orbit determination results using a version of the first strategy appear to achieve the 5 m goal. This is supported by various formal error measures and independent comparisons. The more powerful strategy has yet to be carried out.
Document ID
19860063223
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yunck, T. P. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bertiger, W. I. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lichten, S. M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wu, S. C. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 12, 2013
Publication Date
August 1, 1986
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking