First, Russia has now joined the fray with the recent arrival of its own suspected inspector (or attack) satellite in GEO.

Geosynchronous Space Situational Awareness Program (GSSAP) artist rendering. Credit: U.S. Air Force NATIONAL HARBOR, Md. – At the request of unspecified users, the U.S. Air Force has twice taken a ...

A geosynchronous orbit is a geocentric orbit that has the same orbital period as the sidereal rotation period of the Earth. It has a semi-major axis of 42,164 km (26,200 miles). In the special case of ...

Space Operations Command has accepted Geosynchronous Space Situational Awareness Program (GSSAP) satellites 5 and 6 as operationally capable and has presented them to United States Space Command for ...

A geosynchronous orbit (sometimes abbreviated GSO) is an Earth-centered orbit with an orbital period that matches Earth's rotation on its axis, 23 hours, 56 minutes, and 4 seconds (one sidereal day).

Lockheed Martin has been given the go-ahead to build the fourth geosynchronous (GEO-4) satellite that will form a key part of the US Air Force's Space-Based Infrared Systems (SBIRS) program. SBIRS is ...

For many college students, satellites are faint dots crossing the sky on clear nights. These objects are background details from science fiction to reality, like GPS, satellite radio, and WiFi. A NASA ...