Dust Storm On Mars May Cause Some....
minor orbital problems for Odyssey. The planetary dust storm has decreased the surface temperature of Mars while at the same time increasing the atomospheric temperature (the dust is absorbing sunlight).
This increase (approx 80 degrees) in atmospheric temperature may cause an the upper atmosphere to rise, therby adding a wrinkle to the aerobraking technique to be used by Odyssey.
http://www.myraiders.net/news_item.html?NEWS_newsid=1064821
see ya, VINCE