halley

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Shuttle Point Autonomous Research Tool for Astronomy (SPARTAN)

SPARTAN 201 is a small, Shuttle-launched and -retrieved satellite, whose mission is to study the Sun. SPARTAN 201's science payload consists of two telescopes: the Ultraviolet Coronal Spectrometer (UVCS) and the White Light Coronagraph (WLC). Destroyed on STS-51L, redeployed on STS-56, STS-64 and STS-69.

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Shuttle-Pointed Tool for Astronomy (SPARTAN-203)

The tenth mission for Challenger, STS-51-L was scheduled to deploy the second in a series of Tracking and Data Relay Satellites, carry out the first flight of the Shuttle-Pointed Tool for Astronomy (SPARTAN-203)/Halley's Comet Experiment Deployable in order to observe Halley's Comet.

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ESA Giotto

ESA mission to study Comet Halley

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ESA Giotto

Giotto flew by the Earth on July 1. Closest approach was about 219,000 km at approximately 02:40 UT (10:40 p.m. EDT, 30
June). The spacecraft was moving at about 3.5 km/sec relative to Earth.

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