‘Irreparable’ thrusters and solar activity push 3 HawkEye 360 satellites to lower orbits

Remote-sensing satellite operator HawkEye 360 is the latest to experience problems in orbit, due to an “irreparable” failure of propulsion systems made by Austria-based Enpulsion, compounded by high solar activity.
While HawkEye declined to name its propulsion provider to TechCrunch, an April 2022 letter from HawkEye to the FCC states that the affected satellites are equipped with Enpulsion’s IFM Nano Thruster propulsion system.
HawkEye requested temporary permission from the U.S. Federal Communications Commission to operate three of its satellites, called Cluster 4, at a lower alt

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