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Onizuka Air Force Station

From Wikipedia, the free encyclopedia

Onizuka Air Force Station
Sunnyvale, California in the United States
Lockheed's "Blue Cube".jpg
Onizuka AFS during 2009
Air Force Space Command.png
Onizuka AFS is located in California
Onizuka AFS
Onizuka AFS
Onizuka AFS is located in the United States
Onizuka AFS
Onizuka AFS
Coordinates37°24′17.5″N 122°1′43.5″W / 37.404861°N 122.028750°W / 37.404861; -122.028750
TypeUS Air Force station
Site information
OwnerDepartment of Defense
OperatorUnited States Air Force
Controlled byAir Force Space Command
WebsiteOfficial website (archived)
Site history
Built1960 (1960) (as Sunnyvale AFS)
In use1960 – 30 September 2010 (2010-09-30)
FateDemolished (2014)

Onizuka Air Force Station or Onizuka AFS was a United States Air Force installation in Sunnyvale, California, at the intersection of State Route 237 and North Mathilda Avenue.[1] It was operational from 1960 to 2010.

Its distinguishing feature was Building 1003, known locally as the Blue Cube or simply the "Cube" given its size, color, and lack of windows. The station's other distinguishing features were its three primary parabolic dish antennas used for communication with remote tracking stations used to control military satellites; these antennas were named Sun East, Sun West, and Sun 3.

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In the United States space program's formative stages, Air Force Systems Command (AFSC) contracted with the Philco Ford division of Ford Motor Company to provide interim operational facilities at its Palo Alto, California, location. Operations commenced in the late 1950s. By 1958, the US Air Force sought a permanent home with larger facilities. Ultimately, the Air Force purchased roughly 19 acres (7.7 hectares) of land from Lockheed Corporation, which included Lockheed Building 100, and was named Sunnyvale Air Force Station. Construction of the station's original facilities was completed in 1960. Over time, additional structures were built as operations expanded.

Aerial view of Sunnyvale AFS during the 1980s
Aerial view of Sunnyvale AFS during the 1980s

The station was home to the AFSC operational unit known as the Air Force Satellite Test Center (STC, colloquially called the "stick"), and other non-AFSC operational organizations. By 1979, the Air Force Satellite Test Center was renamed the Air Force Satellite Control Facility.

On January 26, 1994, Sunnyvale AFS was renamed Onizuka Air Force Station in honor of Air Force Lieutenant Colonel Ellison S. Onizuka, an astronaut who died in the Space Shuttle Challenger disaster on January 28, 1986.

Ultimately, both Onizuka AFS and the Air Force Satellite Control Facility were transferred from Air Force Systems Command to Air Force Space Command and was operated by the 21st Space Operations Squadron, a geographically separated unit (GSU) of the 50th Space Wing. The non-AFSC operational organizations remained under their respective commands.


When the station was opened in 1960, the Sunnyvale area was rural and the station was predominantly surrounded by orchards. By the late 1970s, the region had become Silicon Valley and the station's physical security vulnerabilities became apparent. As a result, AFSC commenced plans for the Consolidated Space Operations Center (CSOC), which would be located several miles east of Colorado Springs, Colorado at a to-be-built Falcon Air Force Station (later re-named Schriever Air Force Base). Spacecraft operations would be split between the two locations and each location would serve as a backup to the other. To maintain this redundancy, when Onizuka AFS was selected for closure by the Base Realignment and Closure Commission, the Air Force determined to relocate Onizuka's remaining operational units to the new Ellison Onizuka Satellite Operations Facility at Vandenberg Air Force Base.[2]

Satellite antenna at Onizuka AFS during 2007
Satellite antenna at Onizuka AFS during 2007

Realignment of Onizuka Air Force Station was recommended and accepted as part of the 1995 round of the Base Realignment and Closure Program. In summary, the 750th Space Group was to be inactivated and its functions relocated to Falcon AFS. Detachment 2 of the Space and Missile Systems Center would relocate to Falcon AFB and Kirtland AFB, New Mexico, while some other undisclosed tenants would remain in the existing facilities for some time.[3] On May 13, 2005, Defense Secretary Donald Rumsfeld recommended closing the Onizuka Air Force Station in Sunnyvale as part of a fifth round of military base closures and re-sizing. The date by which the realignment and closure must be completed was September 15, 2011.[4]

In April 2007, the mission of the National Reconnaissance Office at Onizuka AFS ended after 46 years.[5]

Upon completion of this transition, Onizuka AFS was ceremonially closed on July 28, 2010, and officially closed on September 30, 2010.


In April 2014, demolition of the site begun. 9 acres (3.6 hectares) of the land was earmarked for conversion to educational space operated by the Foothill–De Anza Community College District.[6] 4.4 acres (1.8 hectares) of the land was to be used by the Department of Veterans Affairs. 1 acre (0.40 hectares) was added to Sunnyvale's existing Fire Station 5 and was subject to a land swap with a developer to relocate Fire Station 5, upgrade it to full service capabilities, and support a shooting range for public safety personnel training. The remaining 5 acres (2.0 hectares) parcel is now owned by the City of Sunnyvale for an unspecified future use.[7]

See also


  1. ^ "Onizuka Air Force Station Local Redevelopment Authority Redevelopment Plan (Draft)" (PDF). City of Sunnyvale. 19 November 2008. Retrieved 29 October 2020.
  2. ^ "Onizuka AFS closes, operations move to Vandenberg". Archived from the original on 2011-09-29. Retrieved 2010-08-05.
  3. ^ "Onizuka Air Station, California". Air Force Real Property Agency. Archived from the original on May 10, 2006. Retrieved May 5, 2006.
  4. ^ "Base Realignment and Closure (BRAC) of Onizuka Air Force Station (AFS) Frequently Asked Questions (FAQ)". City of Sunnyvale, California. Retrieved May 8, 2007.
  5. ^ "Mission accomplished for NRO at Onizuka AFS". 21st Space Operations Squadron. Archived from the original on July 20, 2011. Retrieved May 8, 2007.
  6. ^ "Wrecking crews demolish iconic 'Blue Cube'". San Jose Mercury News. Retrieved April 17, 2014.
  7. ^ "Onizuka AFS Land Areas" (PDF). City of Sunnyvale. Retrieved April 21, 2014.

External links

This page was last edited on 31 March 2023, at 20:18
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