Reconnaissance satellite
The examples and perspective in this article may not represent a worldwide view of the subject. (January 2012) |
A reconnaissance satellite (commonly referred to as a spy satellite) is an Earth observation satellite or communications satellite deployed for military or intelligence applications.
The first generation type (i.e. Corona [1] [2] and Zenit) took photographs, then ejected canisters of photographic film which would descend to earth. Corona capsules were retrieved in mid-air as they floated down on parachutes. Later spacecraft had digital imaging systems and downloaded the images via encrypted radio links.
In the United States, most information available is on programs that existed up to 1972, as this information has been declassified due to its age. Some information about programs prior to that time is still classified, and a small amount of information is available on subsequent missions.
A few up-to-date reconnaissance satellite images have been declassified on occasion, or leaked, as in the case of KH-11 photographs which were sent to Jane's Defence Weekly in 1984.[3]
History
On 16 March 1955, the United States Air Force officially ordered the development of an advanced reconnaissance satellite to provide continuous surveillance of 'preselected areas of the earth' in order 'to determine the status of a potential enemy’s war-making capability'.[4]
In October 1957, the Soviet Union launched Sputnik 1. It was the first man-made object put in Earth's orbit.
The Manned Orbiting Laboratory, in which USAF personnel were to carry out reconnaissance missions, was cancelled in the late 1970s due to high cost, and to improvements in digital photography making manned operation unnecessary.
Types
There are four major types of reconnaissance satellite.[5]
- Early warning
- Provide warning of an attack by detecting missile launches
- Nuclear explosion detection
- Identifies and characterizes nuclear explosions in space
- Photo surveillance
- Provides imaging of earth from space. Imaging can be done as a survey or close-look telephoto. Radar imaging can be used at night or through cloud cover.
- Radar imaging
- Uses synthetic aperture radar. Earliest known are the Lacross series. RISAT series are among the more recent radar imaging satellites.
Construction and design
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Missions
Examples of reconnaissance satellite missions:
- High resolution photography (IMINT)
- Measurement and Signature Intelligence (MASINT)
- Communications eavesdropping (SIGINT)
- Covert communications
- Monitoring of nuclear test ban compliance (see National Technical Means)
- Detection of missile launches
On Wednesday 28 August 2013, it was thought that "a $1-billion high-powered spy satellite capable of snapping pictures detailed enough to distinguish the make and model of an automobile hundreds of miles below"[6] was launched from California's Vandenberg Air Force Base using America's most powerful rocket.
On 17 February 2014 A Russian Kosmos-1220 originally launched in 1980 and used for naval missile targeting until 1982 made an uncontrolled atmospheric entry.[7]
Benefits
During the 1950s, a Soviet hoax had led to American fears of a bomber gap. In 1968, after gaining satellite photography, the United States' intelligence agencies were able to state with certainty that "No new ICBM complexes have been established in the USSR during the past year."[8] President Lyndon B. Johnson told a gathering in 1967:
I wouldn't want to be quoted on this ... We've spent $35 or $40 billion on the space program. And if nothing else had come out of it except the knowledge that we gained from space photography, it would be worth ten times what the whole program has cost. Because tonight we know how many missiles the enemy has and, it turned out, our guesses were way off. We were doing things we didn't need to do. We were building things we didn't need to build. We were harboring fears we didn't need to harbor.[8]
Controversies
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In December 2013, the US's National Reconnaissance Office was the target of criticism as a result of its choice of logo for the NROL-39 spy satellite: a giant octopus astride the world above the phrase "Nothing is Beyond Our Reach". This was seen as inappropriate coming in the wake of the 2013 disclosures of mass surveillance.[9][10]
In fiction
Spy satellites are commonly seen in spy fiction and military fiction. Some works of fiction that focus specifically on spy satellites include:
- The OMAC Project
- Enemy of the State (film)
- Body of Lies (film)
- Ice Station Zebra
- Karlsson-on-the-Roof is Sneaking Around Again
See also
- Defense Support Program (U.S.)
- European Union Satellite Centre
- List of intelligence gathering disciplines
- List of Kosmos satellites
- National Reconnaissance Office (U.S.)
References
- ^ "Corona History". National Reconnaissance Office. Retrieved 15 February 2014.
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- ^ "Corona Program". JPL Mission and Spacecraft Library. Retrieved 16 February 2014.
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- ^ Wright, Michael; Herron, Caroline Rand (8 December 1985). "Two Years for Morison". New York Times. Retrieved 16 February 2014.
- ^ Erickson, Mark. Into the Unknown Together - The DOD, NASA, and Early Spaceflight (PDF). ISBN 1-58566-140-6.
- ^ reconnaissance satellite, Infoplease, retrieved 17 February 2014
- ^ Hennigan, W.J. (27 August 2013). "Monster rocket to blast off from Pacific coast, rattle Southland". Los Angeles Times. Retrieved 16 February 2014.
- ^ Melissa Goldin (17 February 2014). "Fragments of Soviet-Era Satellite Burn Up in Earth's Atmosphere". Mashable. Retrieved 17 February 2014.
- ^ a b Heppenheimer, T. A. (1998). The Space Shuttle Decision. NASA. pp. 191, 198.
- ^ "'Nothing is beyond our reach,' National Reconnaissance Office's new logo claims". Fox News. 6 December 2013. Retrieved 16 February 2014.
- ^ Szoldra, Paul (7 December 2013). "US Spy Agency Boasts 'Nothing Is Beyond Our Reach' With New Logo". Business Insider. Retrieved 16 February 2014.
Further reading
- Kupperberg, Paul (2003). Spy satellites. Rosen Publishing Group. Retrieved 15 February 2012. ISBN 0-8239-3854-9
- Richelson, Jeffrey (1990). America's Secret Eyes in Space: the U.S. Keyhole Spy Satellite Program. Harper & Row. Retrieved 15 February 2012. ISBN 0-88730-285-8
- Norris, Pat (2008). "Spies in the Sky: Surveillance Satellites in War and Peace". Berlin; New York: Springer; Chichester, UK: In association with Praxis Publishing. Retrieved 15 February 2012.
External links
- Space-Based Reconnaissance by MAJ Robert A. Guerriero
- FAS Intelligence Resource Program - Imagery Intelligence (IMINT)
- Java 3D satellite tracker
- GlobalSecurity.org: Imagery Intelligence
- Iran to Launch first spy satellite
- Egyptsat1 (MisrSat 1)
- Spaceports Around the World: Iraq's Al-Anbar Space Research Center
- Military Intelligence Satellites (NASA, remote sensing tutorial)