Title :
Space station Zero-Propellant Maneuver guidance trajectories compared to eigenaxis
Author :
Bedrossian, Nazareth ; Bhatt, Sagar
Author_Institution :
Manned Space Syst., Charles Stark Draper Lab., Inc., Houston, TX
Abstract :
The zero-propellant maneuver (ZPM) guidance concept has been used on November 5, 2006, and March 3, 2007 to reorient the International Space Station (ISS) 90 deg and 180 deg respectively with control moment gyroscopes (CMGs) without using any propellant. It will be shown that there are multiple ZPM trajectories that can perform the maneuver non- propulsively. Performing the same maneuver using an eigenaxis path would saturate the CMGs, requiring thrusters to regain attitude control. A condition is derived to explain why the CMGs saturate along the eigenaxis path. Flight results from the two ZPM demonstrations are presented.
Keywords :
aerospace control; attitude control; position control; International Space Station; attitude control; control moment gyroscopes; eigenaxis; space station zero-propellant maneuver guidance trajectories; Attitude control; Costs; Gyroscopes; International Space Station; Laboratories; Nonlinear dynamical systems; Propulsion; Space stations; Space vehicles; Vehicle dynamics;
Conference_Titel :
American Control Conference, 2008
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-2078-0
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2008.4587259
