In 1964 an American navigational satellite failed to reach orbit, spreading plutonium-238 around the globe.

They also ensure that all chemical agent monitors and navigational satellite systems are maintained.

Throughout the 1960s work continued on navigational satellites.

It will consist of a constellation of 7 navigational satellites.

With the aid of navigational satellites, the ship would be able to return repeatedly to the same area of ocean.

Navigational satellites help ships and planes navigate.

The mobile robot would have a satellite antenna on its roof to get constant data from the navigational satellite.

Navigational satellites eventually paved the way for products based on GPS (global positioning system).

She had good tracking locks on a pair of navigational satellites, and was where she was supposed to be."

The 109 kg satellite was used to test the feasibility of using gravity-gradient stabilization in Transit navigational satellites.

Near the Stöhr house is one of the six base stations for the testing and development of the Galileo navigational satellites.

A receiver in the car takes regular readings from at least three navigational satellites orbiting the earth and a computer plots the car's position using triangulation.

India is also building the Indian Regional Navigational Satellite System which will be operational by 2014.

Companies Rockwell International was charged with double-billing the Air Force on contracts to build a navigational satellite system in 1982.

The United States Navy experimented with the technology early on, launching a network of navigational satellites named Transit in 1960.

This contention arises from a recent expedition to K-2, during which scientists from the University of Washington used a navigational satellite to recalculate its height.

Navigational satellites that permit aircraft and missile guidance systems to constantly pinpoint their positions within a few yards also play a significant role in the combat missions.

The Defense Department also has 21 navigational satellites, called the Global Positioning System, that allow pilots and ships to locate themselves within a matter of yards.

Pave Low could navigate from a Doppler-radar system that interrogated the ground, from an inertial system using laser-gyroscopes, or from navigational satellites.

A half hour later they were steering a course for the Arbiter; once past the last navigational satellite, they would be veering onto the Earth-Mars ellipsis.

Indian Regional Navigational Satellite System (IRNSS)

"Once the inspectors were gone, it was like losing your G.P.S. guidance," added a Pentagon official, invoking as a metaphor the initials of the military's navigational satellites.

Nor was the helicopter equipped with a device called a global positioning system, which would have enabled the pilots to pinpoint their position precisely by sending electronic signals to a navigational satellite.

"Life support" also handed out bulky survival vests, each containing a radio, compass, flares and global-positioning-system device, which enables an airman to broadcast his position via a navigational satellite.

There are also the planned European Union Galileo positioning system, Chinese Compass navigation system, and Indian Regional Navigational Satellite System.