Physics
Scientific paper
Jan 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jap....63..216l&link_type=abstract
Journal of Applied Physics (ISSN 0021-8979), vol. 63, Jan. 1, 1988, p. 216-223.
Physics
4
Gravity Gradiometers, Space Shuttle Payloads, Tethered Satellites, Calibrating, Gravity Anomalies, Weight Reduction
Scientific paper
This paper describes the current development of a noncryogenic gravity gradiometer for future use on board the tethered satellite system (TSS). The paper also proposes a way of testing a single-axis prototype of such an instrument that makes use of the free-fall technique in vacuum. This gravity gradiometer has a design sensitivity of the order of 0.01 EU in 10-s integration time. Because of the small size and light weight, a noncryogenic gravity gradiometer is a valid candidate to fit the limited accommodation capability of the TSS deployed from the Shuttle and maintained, for several days, at an altitude of 120-130 km. This unique capability improves the resolution and accuracy achievable in reconstructing the earth gravity field, in particular at short wavelengths. A preliminary analysis of the dynamics of the TSS satellite indicates the potential of such satellite as a low-altitude research platform for gravity gradiometry.
Fuligni Franco
Gullahorn Gordon E.
Lorenzini Enrico C.
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