Archives: Glossary Terms: 691 terms

A natural or artificial body in orbit around a planet.

Sixth planet from the sun, a gas giant or Jovian planet.

Steering Committee.

A line of cliffs produced erosion or by the action of faults.

Spacecraft Event Time, equal to ERT minus OWLT.

Spacecraft Clock Time, a counter onboard a spacecraft.

Abbreviation for Second.

the of time. See extensive definition.

Supplementary Experiment Data Record.

A measure of the atmosphere's stability. Poor seeing makes objects waver or blur when viewed in a telescope at high ...