6 Jun 2013 - Radar Movies Highlight Asteroid 1998 QE2 and Its Moon

[NASA]

http://solarsystem.nasa.gov/missions/images/miss-dsn.jpg (http://solarsystem.nasa.gov/news/display.cfm?News_ID=43909)6 Jun 2013 - Radar Movies Highlight Asteroid 1998 QE2 and Its Moon
Scientists working with NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif., have released a second, longer, more refined movie clip of asteroid 1998 QE2 and its moon.


More... (http://solarsystem.nasa.gov/news/display.cfm?News_ID=43909)

[bennycog]

Pretty cool to see an asteroid with a moon.. The dynamics of the primer fields theory should really come into play for this..

from the site:

With additional radar images and time for analysis, NASA scientists have been able to refine their estimates of the asteroid's size and rotation. The data indicate the main, or primary body, is approximately 1.9 miles (3 kilometers) in diameter and has a rotation period of about five hours.

The asteroid's satellite, or moon, is approximately 2,000 feet (600 meters) wide, has an elongated appearance, and completes a revolution around its host body about once every 32 hours. At any point during its orbit, the maximum distance between the primary body and moon is about 4 miles (6.4 kilometers). Similar to our moon, which always points the same "face" at Earth, the asteroid's satellite appears to always show the same portion of its surface to the primary asteroid. This is called "synchronous rotation."