Unseenlabs’ 10 kg BRO-5 SIGINT CubeSat lost 7.4 km of semi-major axis in 89 days, with perigee now at 415 km and no propulsion to reverse the decay.
Unseenlabs CubeSat BRO-5 Drops 7.4 km in 89 Days as Drag Builds
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October 9, 2026
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