Comet 73P/Schwassmann-Wachmann 3 has been passing Earth since may. While the comet is not expected to come close enough to hit earth (2 million miles away), the debris from it is (and would be meteorites). Could this be part of the comet's debris...
It's currently 2million miles from us today, rather than the 5mil originally planned for.
Link to Nasa's tracking of it.