The U. S. Naval Observatory 20-meter radio telescope at Green Bank, West Virginia, monitors Earth rotation and orientation. Image courtesy of the U.S. Naval Observatory.
With the NOAA 200th Celebration coming to a close at the end of 2007, maintenance of this Web site ceased. Updates to the site are no longer being made.
The U. S. Naval Observatory 20-meter radio telescope at Green Bank, West Virginia, monitors Earth rotation and orientation. Image courtesy of the U.S. Naval Observatory.