I doubt that giraffes are metric. But maybe they are some obscure SI unit?
Fun fact. 1 billion km is almost 1.1 light hours. 1 billion miles is almost 1.5 light hours with less error margin. So you can easily calculate that Voyager 2 is about 18 light hours from Earth.
So hwo it "just" took 18 hours for the update to complete, according to the article? Shouldn't be at very least 36 hours, given that you need feedback from Voyager?
It took 18 hours to transfer the data to the probe.
According to the article the update hasn't been activated yet but they are still checking if everything is okay.
> NASA scientists are carrying out a readout of the AACS memory to ensure that it is in the right place for the update. If there aren’t any issues, it will trigger the Voyager 2 update on October 28.