Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
Orbiting Geophysical Observatory
Table of Contents
Introduction References & Edit History Related Topics
Read Next
In Frankfurt, Germany, a driver uses a car GPS infotainment display system to guide them on a German autobahn. lanes; traffic; navigation; travel; map
How Does GPS Work?
Apollo 11 Lunar Module with its four landing-gear footpads deployed. This photograph was taken from the Command Module as the two spacecraft moved apart above the Moon.
5 Unforgettable Moments in the History of Spaceflight and Space Exploration
Discover
Martin Luther King, Jr.
Why We Celebrate MLK Day
Flag of Bhutan
6 Small Kingdoms of the World
Red Army (Soviet) soldiers in the Russian Revolution.
Russian Revolution Timeline
American bison (Bison bison) also known as buffalo or plains buffalo on the prairie, western U.S.
What’s the Difference Between Bison and Buffalo?
Bog body. Head of Tollund Man. Died at about age 30-40, Dated to about 280 BCE early Iron Age. Found Bjaeldskovdal bog Denmark in 1950 near Elling Woman. Most well preserved bog body to date. Human remains mummified in natural peat bogs. mummy, embalm
9 Noteworthy Bog Bodies (And What They Tell Us)
Dr. Martin Luther King Jr. addresses marchers during his "I Have a Dream" speech at the Lincoln Memorial in Washington. August 28th 1963
Was Martin Luther King, Jr., a Republican or a Democrat?
Alcoholic beverages bottles at Host 2013, international exhibition of the hospitality industry on OCTOBER 18, 2013 in Milan.
Why Is Alcohol Measured by Proof?

Orbiting Geophysical Observatory

satellites
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

External Websites
Also known as: OGO
Written and fact-checked by
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
The Editors of Encyclopaedia Britannica
Article History

Orbiting Geophysical Observatory (OGO), any of a series of six unmanned scientific satellites launched by the United States from 1964 to 1969. Equipped with a complex of magnetometers, these orbiting satellites were designed to study the Earth’s magnetosphere (i.e., zone of strong magnetic forces around the planet) and its effect on high-energy particles emitted by the Sun. These studies included investigations of auroral displays, magnetic storms, and other related phenomena. OGO-1, the first in the series, was launched on Sept. 4, 1964. It weighed about 250 pounds (113 kg) and carried instrumentation for 20 to 25 experiments. The other OGO ...(100 of 119 words)

Access the full article
Help support true facts by becoming a member.