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Targetting Giotto

Targetting Giotto


Date: 01 April 1985
Satellite: Giotto
Copyright: ESA

This is slide 19 of 20 from the first Giotto slide set. The following caption is the one originally provided with the slide set. About 2 days before the encounter a final decision will have to be made where to target the Giotto spacecraft. Unfortunately, the position of the comet nucleus can only be estimated because the nucleus is disguised by the coma dust and gas. Based on observations from the Earth the nucleus position is known with an accuracy of 500 km (1Ã). If the spacecraft is targeted at 500 km the actual flyby distance could be anywhere between 0 and 1000 km or more. This is not a very satisfactory situation.
Last Update: 1 September 2019
26-Oct-2020 01:55 UT

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