Invention Grant
- Patent Title: Spin stabilization of a spacecraft for an orbit maneuver
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Application No.: US15016204Application Date: 2016-02-04
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Publication No.: US09963248B2Publication Date: 2018-05-08
- Inventor: Qinghong W. Wang , Alexander Jacob Sobel , Gary Lemke , Timothy Lui , Kangsik Lee , Glenn N. Caplin , Troy Allen Fontana
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: Duft Bornsen & Fettig LLP
- Main IPC: B64G1/24
- IPC: B64G1/24 ; B64G1/28 ; B64G1/26 ; B64G1/36 ; B64G1/40

Abstract:
Apparatus and methods for controlling a spacecraft for a transfer orbit. The spacecraft includes a momentum subsystem that stores angular momentum relative to a center of mass of the spacecraft, and a propulsion subsystem that includes electric thrusters. A controller identifies a target spin axis for the spacecraft, determines gimbal angles for electric thruster(s) that so that thrust forces from the electric thrusters are parallel to the target spin axis, and initiates a burn of the electric thruster(s) at the gimbal angles. The controller controls the momentum subsystem to compensate for a thruster torque produced by the burn of the electric thrusters. The momentum subsystem is able to produce a target angular momentum about the center of mass, where a coupling between the target angular momentum and an angular velocity of the spacecraft creates an offset torque to counteract the thruster torque.
Public/Granted literature
- US20170225805A1 SPIN STABILIZATION OF A SPACECRAFT FOR AN ORBIT MANEUVER Public/Granted day:2017-08-10
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