Meaning of OGO

OGO

Pronunciation: [key]
— U.S. Aerospace. U.S. Aerospace.
  1. Orbiting Geophysical Observatory: one of a series of scientific satellites that studied sun-earth relationships and the earth's atmosphere, ionosphere, and magnetosphere.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.