The Galileo High-Gain Antenna Anomaly: An Overview of the Recovery Efforts
The Galileo spacecraft will explore the atmosphere, magnetosphere, and major satellites of Jupiter.
Galileo Jovian science data parabolic High-Gain An↗
Engineering topics
Gounley, R.
Publications and source records attributed to Gounley, R..
Autonomous satellite navigation by stellar refraction
Previously cited in issue 19, p. 2814, Accession no. A83-41695
Gounley, R.↗
Autonomous satellite navigation by stellar refraction
This paper describes an error analysis of an autonomous navigator using refraction measurements of starlight passing through the upper atmosphere. The analysis is based on a discrete linear Kalman filter. The filter generated steady-state values of navigator performance for a variety of test cases. Results of these simulations show that in low-earth orbit position-error standard deviations of less than 0.100 km may be obtained using only 40 star sightings per orbit.
Gounley, R.↗