About Us

I'm a member of the Space Environments Team at
the Marshall Space Flight Center, located in
Huntsville, Alabama. My specialties are in the areas
of meteoroids and orbital debris, with emphasis on
the risks posed to spacecraft by these components of
the space environment. If you ever see a meteor
shower forecast for a spacecraft, it's probably my
work - I have spent a great deal of time forecasting
Leonid activity for satellites and ground observers
over the past few years. When I'm not dealing with
"small rocks" and "junk", I also dabble in the upper
atmosphere/thermosphere density, solar activity,
spacecraft contamination, and asteroid defense
arenas.

On May 24, 2005, the
Minor Planet Center
named main belt asteroid
15058 to (15058)
Billcooke. Estimates
place it about 8-10 km
(5-6 miles) in diameter.
Click here to see its orbit.