Archives: Glossary Terms: 691 terms

A large number of comets theorized to orbit the sun in the neighborhood of 50,000 au.

Operations Planning and Control Team at JPL, "OPSCON." Obsolete, replaced by DSOT, Data Systems Operations Team.

A collection of young stars that formed together. They may or may not be still bound by gravity. Some of ...

Optical Navigation (images).

Configuration in which one celestial body is opposite another in the sky. A planet is in opposition when it is ...

An orbit is the path of an object around a point or another object in space.

ISO's Open Systems Interconnection protocol suite.

Optical Solar Reflector, thermal control component onboard a spacecraft.

Office Of Space Science, NASA. Obsolete, replaced by Science Mission Directorate (SMD).

Office Of Space Science and Applications, NASA (Obsolete, see OSS).