They're sometimes used on small/micro sats that don't have any reaction wheels or CMGs.
Solar sailing (pitching the solar panels) is another (and more "free") way to dump momentum by using the solar wind. Obviously you need a big solar array for this to be practical.
They're sometimes used on small/micro sats that don't have any reaction wheels or CMGs.
Solar sailing (pitching the solar panels) is another (and more "free") way to dump momentum by using the solar wind. Obviously you need a big solar array for this to be practical.