JPL Technical Report Server

Thrust direction optimization: satisfying Dawn’s attitude agility constraints

Show simple item record Whiffen, Gregory J. 2013-11-19T21:28:23Z 2013-11-19T21:28:23Z 2013-02-10
dc.identifier.citation 23rd AAS/AIAA Spaceflight Mechanics Meeting, Kauai, Hawaii, February 9-11, 2013 en_US
dc.identifier.clearanceno 13-0677
dc.description.abstract The science objective of NASA’s Dawn Discovery mission is to explore the giant asteroid Vesta and the dwarf planet Ceres, the two largest members of the main asteroid belt.¹ Dawn successfully completed its orbital mission at Vesta. The Dawn spacecraft has complex, difficult to quantify, and in some cases severe limitations on its attitude agility.² The low-thrust transfers between science orbits at Vesta required very complex time varying thrust directions due to the strong and complex gravity and various science objectives. Traditional low-thrust design objectives (like minimum ΔV or minimum transfer time) often result in thrust direction time evolutions that cannot be accommodated with the attitude control system available on Dawn. This paper presents several new optimal control objectives, collectively called thrust direction optimization that were developed and turned out to be essential to the successful navigation of Dawn at Vesta. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2013. en_US
dc.subject optimization en_US
dc.subject low-thrust en_US
dc.subject Dawn en_US
dc.title Thrust direction optimization: satisfying Dawn’s attitude agility constraints en_US
dc.type Preprint en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record



My Account