SEQUENTIAL SHAPE ESTIMATION OF AN ASTEROID USING VISION Conference Paper

abstract

• Proximity operations require accurate gravity and shape model of an asteroid. A method for reconstructing the shape model is by using photographic measurements. Tracking surface-features in successive image pairs enable the reconstruction of the asteroid. At close proximity the imaging spacecraft experiences large perturbations due to gravitational harmonics of the asteroid. We develop a methodology to design optimal imaging orbits about an arbitrary asteroid. While the method starts from an ellipsoidal approximation, the shape model of the asteroid is continuously updated for calculating intermediate differential thrust corrections.

authors

• Hurtado, John
• Majji, Manoranjan

published proceedings

• SPACEFLIGHT MECHANICS 2011, PTS I-III

author list (cited authors)

• Satak, N., Majji, M., & Hurtado, J. E.

complete list of authors

• Satak, Neha||Majji, Manoranjan||Hurtado, John E

publication date

• October 2011

published in

• Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2  Journal

International Standard Book Number (ISBN) 13

• 978-0-87703-569-5

start page

• 73

end page

• +

volume

• 140