By Irene Klotz
CAPE CANAVERAL,
Florida (Reuters) - The United States plans to launch a pair of
satellites to keep tabs on spacecraft from other countries orbiting
22,300 miles above the planet, as well as to track space debris, the
head of Air Force Space Command said.
The previously classified
Geosynchronous Space Situational Awareness Program (GSSAP) will
supplement ground-based radars and optical telescopes in tracking
thousands of pieces of debris so orbital collisions can be avoided,
General William Shelton said at the Air Force Association meeting in
Orlando on Friday.He called it a "neighborhood watch program" that will provide a more detailed perspective on space activities. He said the satellites, scheduled to be launched this year, also will be used to ferret out potential threats from other spacecraft.
The
program "will bolster our ability to discern when adversaries attempt
to avoid detection and to discover capabilities they may have which
might be harmful to our critical assets at these higher altitudes,"
Shelton said in the speech, which also was posted on the Air Force
Association's website.
The
two-satellite network, built by Orbital Sciences Corp will drift around
the orbital corridor housing much of the world's communications
satellites and other spacecraft.
The Air Force currently tracks
about 23,000 pieces of orbiting debris bigger than about 4 inches. These
range from old rocket bodies to the remains of an exploded Chinese
satellite.
The Air Force
released a fact sheet emphasizing the program's debris-monitoring
abilities. Brian Weeden, technical advisor with the Washington-based
Secure World Foundation, said the U.S. military already has a satellite
in a better position to do that job.
"I
think the (Obama) Administration is being more honest when it says that
it declassified this program to try and deter attacks on U.S.
satellites," in geostationary, or GEO, orbits located about 23,000 miles
above Earth, Weeden wrote in an email to Reuters.
"The U.S. has a
lot of very specialized and important national security satellites in
the GEO region and it is very concerned about protecting those
satellites ... so by telling other countries that it has some ability to
closely monitor objects near GEO and their behavior, the U.S. hopes
that will deter other countries from attacking its important
satellites," Weeden said.The new satellites also will give the U.S. military greater insight into what other countries have in orbit.
"There's nothing wrong with that, but it is exactly the sort of thing the U.S. is worried other countries will do to it," Weeden added.
Costs and technical details of the program were not released.
The
satellites are scheduled for launch aboard an unmanned Delta 4 rocket,
built by United Launch Alliance, a partnership of Lockheed Martin and
Boeing, from Cape Canaveral Air Force Station in Florida during the last
quarter of 2014.Shelton said two replacement satellites are targeted for launch in 2016.
(This version of the story corrects spelling of Weeden in paragraphs 9 and 13)
(Reporting by Irene Klotz; Editing by David Gregorio)
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