System and method of substantially autonomous geosynchronous...

Details System and method of substantially autonomous geosynchronous... System and method of substantially autonomous geosynchronous...

2007-07-24

2007-07-24

Luu, Teri Pham (Department: 3644)

Aeronautics and astronautics

Spacecraft

Attitude control

Reexamination Certificate

active

10903653

ABSTRACT:
Method of and system for on-board substantially autonomous control for transferring a spacecraft from an initial orbit to a final geosynchronous orbit, by a trajectory that minimizes remaining transfer time and orbit transfer fuel. The spacecraft determines its orbit using a GPS-based system to determine the spacecraft orbital elements. Based on the measured orbit error, corrected co-state parameters are calculated and used to generate an updated thrust trajectory. The corrections are calculated using an innovative numerical procedure, carried out repetitively at a fixed interval until the target geosynchronous orbit is achieved.

REFERENCES:
patent: 5109346 (1992-04-01), Wertz
patent: 5546309 (1996-08-01), Johnson et al.
patent: 6131058 (2000-10-01), Boeinghoff et al.
patent: 6142423 (2000-11-01), Wehner
patent: 6145790 (2000-11-01), Didinsky et al.
patent: 6157891 (2000-12-01), Lin
patent: 6186446 (2001-02-01), Tilley et al.
patent: 6317688 (2001-11-01), Bruckner et al.
patent: 6456906 (2002-09-01), Hua
patent: 6508438 (2003-01-01), Eyerly
patent: 6596976 (2003-07-01), Lin et al.
patent: 6685142 (2004-02-01), Fichter et al.
patent: 6695263 (2004-02-01), Goodzeit
patent: 6921051 (2005-07-01), Lopata et al.
patent: 2002/0171011 (2002-11-01), Lopata et al.
patent: 2005/0040280 (2005-02-01), Hua

Affiliated with

Also associated with

Rating

System and method of substantially autonomous geosynchronous... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method of substantially autonomous geosynchronous..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method of substantially autonomous geosynchronous... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3747744