The US Air Force’s unmanned X-37B space plane has now spent morethan 500 days orbiting the Earth! The USAF has provided no explanation or clues to its mission which is most certaintly based around military surveillance, electronic intelligence and satellite observation and inspection.
The 29-foot unmanned space-plane which appears similar to a miniature space shuttle is is part of the Air Force’sorbital program. Launched May 20, 2015, it is the program’s fourthflight (hence its other name, OTV-4 for Orbital Test Vehicle-4). Thefirst OTV took flight in 2010 and spent 224 days in orbit; two othersbrought the total number of OTV days in orbit before 2015 to 1,367,according to the Air Force.
The full purpose or intent of the program?
The Air Force has built the X-37B to control the space environment. An X-37 can satisfy two subsets of Space Control of Offensive Counter Space (OCS) and Defensive Counter Space (DCS) missions with OCS beign the ability to disrupt enemy satellite systems.
The X-37 can rendezvous with enemy satellites and jam the electronic cross-link or downlinks thereby temporarily disrupting the enemy's capability to retrieve information from her satellites.
The X-37 can employ kinetic kill vehicles to destroy enemy satellites in the form of micro-satellites
placed in proximity of enemy satellites to carry out future OCS missions. Or perhaps the X-37 is simply performing ELINT/SIGNIT missions.
The Air Force will only say in its program fact sheet that theinitiative is to “demonstrate technologies for a reliable,reusable, unmanned space test platform for the US Air Force.
“The idea of being able to launch an unmanned research platformthat can stay up there for months on end provides you with all kindsof capability, both military and civilian,” said Chris Hellman, apolicy analyst with the National Priorities Project, an Americanbudget watchdog group, to the Christian Science Monitor in 2010.
Theidea of American eyes being able to hover at low orbits over any partof the planet has security experts and arms control advocatesconcerned, the story noted.
NASA has revealed that on this particular mission, it is carryinga materials experiment as well as facilitating a solar sail demo bythe Planetary Society and giving nine CubeSat nanosatellites a lift,according to the Daily Mail.
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Technology tested by the X-37B to date.... |
Space.com reports that Aerojet Rocketdyne claims that it tested anew thruster onboard the plane, and that the Air Force is alsotesting a new propulsion system. NASA began the X-37B program in1999, then transferred it to Defense Advanced Research ProjectsAgency (DARPA) in 2004 to test an Approach and Landing Test Vehicle.The Air Force took over after 2006.