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CHANGES IN THE SATELLITE MASS
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550-km Mean Gravity alignment angle angular resolution aperture arc seconds Area estimate aspheric astronomical Astrophysical Observatory autocovariance autocovariance analysis average axis beam combiner Block camera collimator configuration corrector cost covariance function deg2 detector diameter earth's efficiency error estimate of deg estimate of Lat field focal length focal plane focal ratio focus galaxies grating gravity anomalies ground-based infrared instrument interval MJD 39304 Kitt Peak large telescopes laser lens light Mean Geoid Heights Mean Gravity Anomalies Meinel meters mgal mount Multiple Mirror Telescope objects obtained operation optical support structure orbital acceleration orbital elements Pageos performance phase pixels primary mirror prism problems Reticon rotation satellite secondary mirror segments shown in figure slit solar space speckle interferometry spectral spectrograph spherical star stellar Steward Observatory surface techniques tion tube University of Arizona values wavelengths