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Use of ballistic arcs for low thrust navigation enhancement in the 1980 Encke slow flyby (1974)

Jacobson, R. A. ; Rinker, G. C. ; Mcdanell, J. P.

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Publication Date: 2019-07-13

Description: A technique is presented for improving navigation accuracy in the Solar Electric Encke Slow Flyby Mission proposed to encounter the comet Encke during its 1980 apparition. The effect of the dominant navigation error source, the high level thruster noise, is reduced through the introduction of a ballistic coast arc for the purpose of orbit determination enhancement. The placement and duration of the arc is investigated with respect to its impact on final delivery error and on control effort required for trajectory correction. Also examined are the changes in delivery accuracy and control effort as a result of the time lag between the state estimation process and the thrust control program update.

Keywords: NAVIGATION

Type: AIAA PAPER 74-828 , Mechanics and Control of Flight Conference; Aug 05, 1974 - Aug 09, 1974; Anaheim, CA

Format: text

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