On Friday, 13 November, 2009, at 07:46 UT, ESA's Rosetta satellite will make her third (and final) swing-by of Earth, picking up a gravity assist from our bulky home planet and altering trajectory as she enters the next stages of the 10-year journey to Comet 67 P/Churyumov-Gerasimenko.

The ESA Flight Dynamics team have predicted Rosetta's altitude at the point of closest approach (perigee height) on 13 November to be 2481 km, slightly higher than her first swing-by in March 2005 (1954 km) and lower than her second swing-by on 13 November 2007 (5295 km). We'll update this figure as we get closer to the swing-by date itself...

The geographical point of closest approach (the point on the Earth's surface over which she'll make closest approach) is 109°E and 8°S - just off the coast of the Indonesian island of Java.

109°E, 8°S

Rosetta Earth Swing-by 13.11.2009 07:46 UT - Point of closest approach @ 2481 km altitude