Satellite Control Network
The Satellite Control Network (SCN), operated by the
Overview
The Satellite Control Network consists of satellite control centers, tracking stations, and test facilities located around the world. Satellite Operations Centers (SOCs) are located at
History
The Satellite Control Network was originally activated to support the
Locations
- Schriever Space Force Base, Colorado – Primary C2 Node
- Ellison Onizuka Satellite Operations Facility (EOSOF) at Vandenberg Space Force Base, California – Secondary C2 Node.
The Satellite Control Network maintains a number of tracking stations, which are used to track (primarily) US government agency & military satellites, as well as receive and process telemetry and send commands to these satellites. Said facilities are intended to support all
Current Remote Tracking Stations
- Diego Garcia Station (DGS), BIOT; callsign REEF. The Diego Garcia Station has two sides (as of 2010) to provide enhanced tracking for the Satellite Control Network users. This site also includes a GPS Ground Antenna site.
- Guam Tracking Station (GTS), Guam; callsign GUAM. The Guam Tracking Station has two sides (one ARTS and one RBC) and is undergoing a "hybridization" upgrade that replaces the old A-side ARTS system with an RBC core electronics suite and upgrades the existing 60-foot antenna.
- Hawaii Tracking Station (HTS), Kaena Point Satellite Tracking Station, Hawaii; callsign HULA. The Hawaii Tracking Station is located on the island of Oahu and also includes an ARTS side and an RBC side. The Hawaii Tracking Station is also undergoing a "hybridization" effort that will replace the old B-side ARTS system and upgrade the existing 60-foot antenna (previously the A-side).
- New Hampshire Station (NHS), New Boston, New Hampshire. As of 2013, the site had two ARTS sides and an RBC side.
- Telemetry & Command Station (TCS), RAF Oakhanger, in England, operated by the United Kingdom and supporting the Satellite Control Network through a Memorandum of Agreement between the UK Ministry of Defence and the US Department of Defense; callsign LION. As of 2010, the site includes three sides, two ARTS and an RBC.
- Thule Tracking Station (TTS), 6594th Test Wing's Operating Location 5 designated by Air Force Systems Command on 15 October 1961: the station was operational on 30 March 1962, with "transportable antenna vans parked in an old Strategic Air Command bomb assembly building."[3] The permanent RTS equipment was emplaced in 1964,[3] and a communications terminal was emplaced on Pingarssuit Mountain—Thule Site N-32[4] (moved to Thule Site J in 1983.[3]
The station transferred to Detachment 3, 22nd Space Operations Squadron, in 1992.
It includes a "fully equipped mini-fitness center".[3] It was a three-sided site until the summer of 2011, when the "C" side was decommissioned and dismantled in preparation for system upgrades. The upgrade to an Automated Remote Tracking Station was planned to be completed in 2015. In May, 2013, the A-side antenna suffered a mechanical failure that prompted an early decommissioning. From that time, the site operated only with its B-side. Starting in 2014, the new C-side RBC installation got under way. This is the northernmost RTS, located at approximately 76.4 degrees north latitude. As of February 2015, the RBC installation is nearly complete, with just a few minor details to be finished before the formal testing gets underway in the May/June timeframe.
- Vandenberg Tracking Station (VTS), California; callsign COOK. This is a dual-sided station which provides normal on-orbit support but also provides pre-launch checkouts and launch support for the Western Test Range at Vandenberg Space Force Base.
Automated Remote Tracking Stations
In the late 1980s and early 1990s, the RTSs were modernized with the addition of the Automated Remote Tracking Station (ARTS) systems. The ARTS systems provided more responsive support and reduced the manpower required at each site through semi-automation. In addition to upgrading all the existing sites, the ARTS Phase I program added the following sites to the Satellite Control Network:
- Colorado Tracking Station at Schriever Air Force Base, Colorado, which had a "cessation of operations" in August 2012 and was formally deactivated in 2014
- Thule Tracking Station "C" side, which was decommissioned in 2011 and dismantled that summer
- Telemetry and Command Station "B" side
- Diego Garcia Station "A" side code number 01122334455
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RTS Block Change (RBC) Systems
Beginning in 2004, an upgrade effort was started to replace the ARTS sites, which were already beyond their planned design life. The following sites have been upgraded to the RBC configuration, which includes a 13-meter 3-axis antenna:
- Vandenberg Tracking Station "A" side
- Diego Garcia Station "B" side, added to the network during the upgrade effort
- Telemetry and Command Station "C" side, added to the network during the upgrade effort
- Hawaii Tracking Station "A" side
- Guam Tracking Station "B" side
- New Hampshire Station "B" side
- Thule Tracking Station "C" side
Closed Remote Tracking Stations
- Indian Ocean Station (IOS), Mahe Island, Seychelles; callsign INDI (closed in August 1996, after the Government of Seychelles attempted to "raise the rent" to more than $10 million/year). The Indian Ocean Tracking Station was located on the island of Mahe, the main island of the Seychelles archipeligo. It had one 60-foot antenna. Its location was ideal for communicating with geosynchronous satellites over the Indian Ocean. The station was also geographically suited for acquiring realtime or near-realtime data from passes over areas to the north. In 1980, due to political instabilities of the island, the main processing computers were removed and relocated to Sunnyvale. These computers communicated with the IOS downlink and tracking equipment via a wideband (DSCS) communications link. IOS has been supplanted by Diego Garcia RTS.
- Kodiak Tracking Station (KTS), Kodiak Island, Alaska; callsign KODI (closed on 20 March 1975)
- Sunnyvale Control Station, callsign CUBE. Not a true tracking station, in that it had no direct downlink antenna. Instead, CUBE supported operations at TCS/Oakhangar and IOS/Seychelles, where main processing computers could not be located. CUBE had two 'sides', and so could support two satellite passes simultaneously. The 750th Space Group was inactivated in June 1999.[5]
- Colorado Tracking Station (CTS), Schriever AFB, Colorado; callsign PIKE. As of 2008, this site transitioned from an operational location to a testing facility, with operational support as possible. This site formally ceased operational support on 2 August 2012. It used to support various DoD satellites and previously included enhancement equipment that was used to support the Global Positioning System satellites. On 30 September 2014, the site was formally deactivated and closed.
There was a tracking station on Annette Island that is one of the Alaska islands far south east of the Alaska main land area and not too far north of Seattle Washington. It was built in the mid/late 1950s and closed in the early 1960s.
See also
References
- ^ "Space Delta 6 protects space and cyberspace".
- ^ Theresa Hitchens (17 May 2023) Space Force ground control operators press for 'absolutely critical' network upgrades Overview of Satellite Control Network
- ^ a b c d title tbd (PDF) (Report). MilitaryOneSource.mil. Retrieved 16 March 2014.
- ^ Fletcher, Harry R. Air Force Bases (PDF) (Report). Vol. II: Air Bases Outside the United States of America. Retrieved 16 March 2014.
- ^ [Lineage and Honors, 21st Space Operations Squadron, Air Force Historical Research Agency; Lineage and Honors, 22d Space Operations Squadron, Air Force Historical Research Agency]
- United States Army. (1993). Space Reference Text. US Army Space Institute: Fort Leavenworth, Kansas.