The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 06, 2015

Filed:

Oct. 23, 2012
Applicant:

The Boeing Company, Chicago, IL (US);

Inventors:

Fawwad M. Batla, Yorba Linda, CA (US);

Yiu-hung M. Ho, Palos Verdes Estates, CA (US);

Assignee:

The Boeing Company, Chicago, IL (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05D 3/00 (2006.01); B64G 1/10 (2006.01); B64G 1/24 (2006.01);
U.S. Cl.
CPC ...
B64G 1/242 (2013.01);
Abstract

The disclosed method involves calculating, with at least one processor, a desired orbit for the spacecraft. The method further involves calculating a velocity change required to achieve an orbit eccentricity, a velocity change required to achieve a semi-major axis, and a velocity change required to achieve an orbit inclination; all of which correspond to the desired orbit for the spacecraft. Also, the method involves calculating the direction of the vector sum of the velocity change required to achieve the orbit eccentricity, the velocity change required to achieve the semi-major axis, and the velocity change required to achieve the orbit inclination. Further, the method involves activating at least one propulsion device of the spacecraft in the direction of the vector sum in order to change the current orbit of the spacecraft to the desired orbit for the spacecraft, thereby changing the orbit eccentricity, the semi-major axis, and the orbit inclination simultaneously.


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