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The system consists of six satellites in geostationary orbits. The final satellite was launched on 26 March 2020. The final satellite was launched on 26 March 2020. AEHF is backward compatible with, and replaces, the older Milstar system and will operate at 44 GHz uplink ( extremely high frequency (EHF) band) and 20 GHz downlink ( super high ...
The Joint Polar Satellite System (JPSS) is the latest generation of U.S. polar-orbiting, non-geosynchronous, environmental satellites. JPSS will provide the global environmental data used in numerical weather prediction models for forecasts, and scientific data used for climate monitoring.
The U.S. Navy's Communications Satellite Program Office (PMW 146) of the Program Executive Office (PEO) for Space Systems in San Diego, is lead developer for the MUOS program. [4] Lockheed Martin Space is the prime system contractor and satellite designer for MUOS under U.S. Navy Contract N00039-04-C-2009, which was announced on 24 September 2004.
The Lockheed Martin A2100 geosynchronous spacecraft series is designed for a variety of telecommunications needs including K a band broadband and broadcast services, fixed satellite services in C-band and K u band payload configurations, high-power direct broadcast services using the K u band frequency spectrum, and mobile satellite services using UHF, L-band and S-band payloads.
NOAA-21, designated JPSS-2 prior to launch, [2] is the second satellite in National Oceanic and Atmospheric Administration (NOAA)'s latest series of U.S. polar-orbiting, non-geosynchronous, environmental satellites, known as the Joint Polar Satellite System (JPSS).
TADIL-J refers to the system of standardized J-series messages which are known by NATO as Link 16.These are defined by U.S. military standard (MIL-STD) 6016. It is used by the U.S. Navy, U.S. Army, U.S. Marine Corps, U.S. Air Force, U.S. Coast Guard, the NSA, several NATO countries, and Japan as part of the Multi-Tactical Data Link Network, a Tactical Data Link.
S-TADIL J, or Satellite TADIL J, is a real-time Beyond Line-of-Sight Tactical Digital Information Link (TADIL) supporting the exchange of the same J Series message set that is implemented on Link-16 via the Joint Tactical Information Distribution System (JTIDS).
The STP-2 (DoD Space Test Program) payload launched aboard a SpaceX Falcon Heavy on 25 June 2019. [12] [clarification needed] Included was COSMIC-2, a cluster of six satellites, with a mass of 277.8 kg (612 lb) each. [13] The primary role of the COSMIC-2 satellite constellation is to provide radio occultation data