Canyon (satellite)

Canyon was a series of seven United States spy satellites launched between 1968 and 1977. Also known by its program number AFP-827, the satellites were developed with the participation of the Air Force. The Canyon project is credited as being the first American satellite system tasked for COMINT.

The satellites each had a mass of 700 kg and were launched from Atlas/Agena D rockets into near-geosynchronous orbits. They carried large parabolic reflecting dishes, estimated at 10m in diameter. The Canyon satellites were eventually replaced with the next generation of COMINT satellites, the Vortex/Chalet series. The program is still classified.

Seven Canyon satellites were launched from 1968 to 1977, all with Atlas Agena D vehicles from LC-13 at Cape Canaveral and there was one failure in 1971. The first four Canyons apparently remained attached to the Agena after achieving orbit, using its engine for maneuvering (the missions would have been concluded after Agena propellant depletion). Later Canyons were reputedly larger in size and did separate from the booster.

Tempest (Deftones song)

"Tempest" is the second single by Sacramento, California-based alternative metal band Deftones, from their seventh studio album, Koi No Yokan. The song debuted on PureVolume's official website on October 3, 2012 along with a video featuring band members Chino Moreno and Sergio Vega giving some insight regarding the track. The song's lyrical content is representative of the supposed end of the world that would have occurred on December 21, 2012, according to various myths related to the Mayan calendar. It was featured in the trailer for the film Jack the Giant Slayer and featured in Furious 7.

Peaking at No. 3 on the US Hot Mainstream Rock Tracks, Tempest became Deftones' most successful single on that chart, surpassing "Change (In the House of Flies)", which peaked at No. 9 in 2001.

The song has been described as post-metal.

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Tempest (codename)

TEMPEST is a National Security Agency specification and NATO certification referring to spying on information systems through leaking emanations, including unintentional radio or electrical signals, sounds, and vibrations. TEMPEST covers both methods to spy upon others and also how to shield equipment against such spying. The protection efforts are also known as emission security (EMSEC), which is a subset of communications security (COMSEC).

The NSA methods for spying upon computer emissions are classified, but some of the protection standards have been released by either the NSA or the Department of Defense. Protecting equipment from spying is done with distance, shielding, filtering and masking. The TEMPEST standards mandate elements such as equipment distance from walls, amount of shielding in buildings and equipment, and distance separating wires carrying classified vs. unclassified materials, filters on cables, and even distance and shielding between wires/equipment and building pipes. Noise can also protect information by masking the actual data.

Tempest (Balflare album)

Tempest is Balflare's second album, released in 2006.

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Personnel

References