Also known as KH11-15, Enhanced CRYSTAL 2109, NRO Launch 49, USA-224, NRO L-49, Keyhole 12-6, KH 12-6, Betty
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USA-224, also known as NROL-49, is an American reconnaissance satellite. Launched in 2011 to replace the decade-old USA-161 satellite, it is the fifteenth KH-11 optical imaging satellite to reach orbit.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).