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  2. GPS Block IIIF - Wikipedia

    en.wikipedia.org/wiki/GPS_Block_IIIF

    In order to be able to command and control Block IIIF satellites, in April 2021 the U.S. Space Force awarded a $228 million contract to Raytheon Intelligence and Space called OCX Block 3F, which builds on the existing OCX Block 2 system and adds the ability to perform Launch and Checkout of Block IIIF satellites. [58] [59]

  3. GPS Block III - Wikipedia

    en.wikipedia.org/wiki/GPS_Block_III

    The Contingency Operations effort enables GPS III satellites to participate in the GPS constellation, albeit in a limited fashion, without having to wait until OCX Block 1 becomes operational (scheduled for 2022). The United States Space Force awarded the US$96 million Contingency Operations contract in February 2016. [74]

  4. List of GPS satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_GPS_satellites

    Samples of three GPS satellites' orbits over a five-year period (2013 to 2018) USA-242 · USA-239 · USA-151 · Earth As of 22 January 2025, 83 Global Positioning System navigation satellites have been built: 31 are launched and operational, 3 are in reserve or testing, 43 are retired, 2 were lost during launch, and 1 prototype was never launched. 3 Block III satellites have completed ...

  5. List of USA satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_USA_satellites

    Fifth GPS Block III satellite, named Neil Armstrong: USA-320: 2022-01-13 2022-002CV Falcon 9 Block 5: Unknown Launched with USA-321, USA-322 and USA-323 on Transporter 3 Rideshare Launch. Likely the satellites were built by SpaceX based on the Starshield bus (based on Starlink Block v1.5 technology), were deployed by the US army.

  6. USA-343 - Wikipedia

    en.wikipedia.org/wiki/USA-343

    USA-343 was launched by SpaceX on 18 January 2023 at 12:24 UTC, atop Falcon 9 booster B1077.. The launch took place from SLC-40 at Cape Canaveral Space Force Station, and placed USA-343 directly into semi-synchronous orbit.

  7. Defense Satellite Communications System - Wikipedia

    en.wikipedia.org/wiki/Defense_Satellite...

    Since the first launch, DSCS has been the "workhorse" of military satellite communications. All DSCS III satellites have exceeded their 10-year design life. The National Science Foundation use the DSCS satellites to provide additional bandwidth to Amundsen–Scott South Pole Station and McMurdo Station on Ross Island on the continent of ...

  8. History of the United States Space Force - Wikipedia

    en.wikipedia.org/wiki/History_of_the_United...

    It took until 1987 for Air Force Systems Command to transition the Air Force Satellite Control Network to Air Force Space Command (renamed from Space Command on 15 September 1985 to distinguish itself from United States Space Command) and the Consolidated Space Operations Center only became operational in March 1989. [2]

  9. Milstar - Wikipedia

    en.wikipedia.org/wiki/Milstar

    Milstar (Military Strategic and Tactical Relay) [1] is a constellation of military communications satellites in geosynchronous orbit, which are operated by the United States Space Force, and provide secure and jam-resistant worldwide communications to meet the requirements of the Armed Forces of the United States. Six spacecraft were launched ...