On Feb 19, 10:39*am, Chris L Peterson wrote:
On Tue, 19 Feb 2013 03:09:28 -0800 (PST), wrote:
A satellite of a closely approaching asteroid could be moving in any
direction relative to the Earth. *However, 2012 DA14 was several
hundred thousand kilometers away from the meteoroid, orders of
magnitude more than the typical distance of an asteroid moon.
Asteroid 2012 DA14 was very small, with a very low escape velocity.

A fragment of DA14 could be very far away from it (the existence of a
fragment is much more likely than of a satellite). But it would still
be in the same orbit as DA14, and therefore couldn't have produced the
Russian fireball.

The OP wasn't asking about a fragment with a similar/identical orbit,
but about a satellite which might have been in orbit around the
asteroid.