In 2005, the European Space Agency's comet chaser Rosetta experienced a small but noticeable flyby anomaly as it swept round the Earth for the first of three flybys.
This was the first mission to the planet since the Mariner 10 spacecraft made three flybys of Mercury in 1974 75.
So far, only half of the planet has been mapped--by NASA's Mariner 10 spacecraft, which made three flybys in 1974 and 1975.
Observations during three flybys by Cassini on February 17 , March 9 and July 14 of 2005 revealed Enceladus's surface features in much greater detail than the Voyager 2 observations.
Its three flybys, more than 25 years ago, yielded the first view of this little-understood world.
It made three flybys of Mercury before arriving to orbit the planet in 2011.
It made one flyby of Earth, two flybys of Venus and three flybys of Mercury itself before finally entering orbit around its destination planet in 2011.
A tail of sodium that had been seen behind Mercury during the first two flybys, in January 2008 and October 2008, was much diminished in the third flyby.
In this paper we analyze a standard atmospheric model to estimate the density profile during the two Galileo flybys, the NEAR and the Juno flyby.
After launch by a Delta 2925H-9.5, two flybys of Venus, and two flybys of Mercury, orbit insertion is accomplished at the third Mercury encounter.
