Archives: Glossary Terms: 691 terms

Spacecraft event file.

Sequence of Events Generation Subsystem.

Half the distance of an ellipse's maximum diameter, the distance from the center of the ellipse to one end.

A type of spiral galaxy which has a small, compact nucleus that is much brighter than the rest of the ...

Space Flight Operations Facility, Buildings 230 and 264 at JPL.

Space Flight Operations Schedule, product of SEGS.

A type of star which is believed to be surrounded by a thin envelope of gas, which is often indicated ...

Moons which gravitationally confine ring particles.

A satellite that constrains the extent of a planetary ring through gravitational forces. Also known as a shepherd moon.

A Shooting star is a popular term for a meteor, which is a flash of light generated when a meteoroid ...