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.
Patent No.:
Date of Patent:
Jan. 05, 1999
Filed:
Jan. 08, 1997
Applicant:
Inventors:
Hiroko Aoki, Tokyo, JP;
Osamu Iijima, Tokyo, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64G / ;
U.S. Cl.
CPC ...
244176 ; 2441 / ;
Abstract
A satellite control method is provided for keeping at an identical longitude a plurality of geostationary satellites in which east-west velocity increment (NS coupling) during the execution of north-south orbit control is not negligible. Eccentricity vectors of the geostationary satellites are localized to ensure a large difference therebetween, such that the circumferences of circles, which indicate the ranges of variation of the eccentricity vectors due to the radiation pressure of the sun and NS coupling, do not overlap and are separated from one another at a distance at least greater than a specified minimum inter-satellite distance.