Inventor
CLAFFEY DOUGLAS
US5 patents
Patents
5 patentsUS6144334ANov 7, 2000
Method and apparatus for calculating access between satellite constellations and ground targets
ANALYTICAL GRAPHICS INC24 citations88
US6102334AAug 15, 2000
Method and apparatus for determining close approaches for earth-fixed launch trajectories
ANALYTICAL GRAPHICS INC21 citations88
US6850875B1Feb 1, 2005
Method and apparatus for determining obscuration of sensors that are mounted on a spacecraft
ANALYTICAL GRAPHICS INC12 citations76
US5864489AJan 26, 1999
Method and apparatus for determining exposure of spacecraft-mounted solar panels to sun and determination of spacecraft drag
ANALYTICAL GRAPHICS INC11 citations68
US6011913AJan 4, 2000
Method and apparatus for determination of spacecraft drag
ANALYTICAL GRAPHICS INC3 citations54