ESA - Rosetta

About Rosetta

Rosetta at a glance Europe's comet chaser Why 'Rosetta'?

About the spacecraft

The Rosetta orbiter Orbiter: Instruments The Rosetta lander Lander: Instruments

About the journey

The long trek Debris of the Solar System: Asteroids Asteroid (2867) Steins: a portrait Life and survival in deep space Long-distance communication The Rosetta ground segment

About the arrival

Comets - an introduction Comet 67P/Churyumov- Gerasimenko Comet rendezvous Giotto - ESA's first comet mission

Meet the team

Project Manager Project Scientist

Multimedia

VideoTalk 3D Flash 'model'Rosetta images Rosetta videos Rosetta Animations Rosetta wallpaper Life of a comet

Services

Frequently asked questions Comments

RSI

RSI (Radio Science Investigation). Shifts in the spacecraft's radio signals are used to measure the mass, density and gravity of the nucleus, to define the comet's orbit, and to study the inner coma. RSI will also be used to measure the mass and density of Siwa, and to study the solar corona during the periods when the spacecraft, as seen from Earth, is passing behind the Sun.

Principal Investigator: M. Pätzold, University of Cologne, Cologne, Germany.

Last update: 21 January 2004

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Rosetta at a glance The Rosetta orbiter The Rosetta lander

Instruments on the orbiter

ALICECONSERTCOSIMAGIADAMIDASMIROOSIRISROSINARPCVIRTIS

Instruments on the lander

APXSÇIVACONSERTCOSACMODULUS PTOLEMYMUPUSROLISROMAPSD2SESAME