Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984asdy.confq....d&link_type=abstract
American Institute of Aeronautics and Astronautics and American Astronautical Society, Astrodynamics Conference, Seattle, WA, Au
Astronomy and Astrophysics
Astronomy
Geosynchronous Orbits, Synchronous Satellites, Tethered Satellites, Kevlar (Trademark), Mars (Planet), Saturn Satellites, Solar System, Whisker Composites
Scientific paper
A practical method is analytically shown for multiplying the number of orbital slots for synchronous satellites. This is by radially tethering satellites above the synchronous orbit (forces outwards) balanced to satellites below this orbit (forces inwards). The term practical applies because the tether tension force is of second order smallness. Thus, several thousand miles of synchronous satellites can be radiated along a small tether line sized for tension of about one percent of a satellite weight. A vertical tether line also provides a track for transport, that is, a ladder or elevator. Analysis for an optimized diameter tether line is developed which is particularly effective when the tether, line is extended to the ground, thus, making a space ladder. Mars is the best candidate for a space ladder. With the optimized tether the total system mass is minimum when the outer satellite is far out. Tethered satellites have G-forces.
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