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apogee kick motor
A solid rocket motor, usually permanently attached to a spacecraft, which circularizes an elliptical transfer orbit by igniting at apogee (leading to the colloquial phrase “a kick in the apogee”). First used on the early Syncom satellites in 1963-64 to “kick” the satellite from a geostationary transfer orbit to a geostationary orbit. Also known simply as an apogee motor.
Related entry
• kick stage
Related category
• ROCKET ENGINE TYPES
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