NASA’s Voyager 2 spacecraft went into fault protection mode on Tuesday January 28th.

The fault protection stems from a maneuver attempted on January 25th. On that day, Voyager 2 was supposed to execute a scheduled rotation maneuver. The spacecraft rotates itself 360 degrees to calibrate one of its instruments.

NASA says there was a delay in the maneuver, which caused two systems that draw a lot of power to be on at the same time. To protect itself, the spacecraft went into its fault-protection mode.

By January 28th, engineers had successfully shut down one of the two high-power-drawing systems, and turned its science instruments back on.

It’s a 34 hour round trip for mission engineers to send a signal to the spacecraft and for the spacecraft to respond.

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