Comment by marcosdumay

> Particularly at high altitudes.

Well, maybe "higher", but not really high.

The lower the altitude, the larger the odds of making one, in a quadratic fashion. But also the lower the altitude, the less time it will last.

There is some space where it lasts basically forever but is small enough for it to happen. It's higher than LEO, and way lower than things like GEO.