2006 AM4

We observed near-Earth asteroid 2006 AM4 on Jan 31-Feb 2 2007. It was known to have a rotation period of 304.9 sec from lightcurve observations by Carl Hergenrother in the weeks before our observations. While not the fastest rotator known, this is unusually fast for an object that is 150m in diameter. No loose material can be sitting on the surface. The radar observations confirmed this fast period and we obtained images. The movie below is 100 images phased using Carl's rotation period.
A mosaic of several images.
Movie of 2006 AM4

Mike Nolan
Last modified: Mon May 12 16:15:21 AST 2003