USA-353 (also known Orion-12 and NROL-70) is an American SIGINT reconnaissance satellite which is operated by the National Reconnaissance Office. Launched in April 2024, it is a secret Orion satellite.
Overview The satellite launched on the final Delta IV Heavy and Delta (rocket family) mission, ending the family's decades of service to US national security missions.
Orion also known as Mentor is a SIGINT/ELINT satellite build to replace Magnum satellite and the COMINT capability also made Orion a replacement for the Mercury satellite. It is called that the satellite has a reflector of a diameter as big as ~100m.
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See also
List of USA satellites List of NRO Launches National Security Space Launch
References