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An orbiter is a space probe that orbits a planet or other astronomical object. An orbiter can be either man-made, or created naturally..

Examples
Asteroids

NEAR Shoemaker (orbited 433 Eros, eventually landed but was not designed to do so)
Hayabusa (studied 25143 Itokawa, technically not an orbiter, but rather followed the asteroid in its orbit around the Sun)
Dawn (orbited 4 Vesta, now orbiting Ceres)

Earth

Space Shuttle orbiter
Buran
Soyuz
IXV
Shenzhou
LandSat

Jupiter

Galileo

Mars
Main article: List of Mars orbiters

Mariner 9
Mars 2
Mars 3
Mars 5
Viking 1
Viking 2
Phobos 2
Mars Global Surveyor
2001 Mars Odyssey
Mars Express
Mars Reconnaissance Orbiter
Mars Orbiter Mission

Mercury

MESSENGER

Moon

Grail spacecraft (Ebb&Flow)
Luna 10 - first artificial satellite of the Moon
Explorer 33
Lunar Orbiter 1
Luna 11
Luna 12
Lunar Orbiter 2
Lunar Orbiter 3
Lunar Orbiter 4
Explorer 35
Lunar Orbiter 5
Luna 14
Luna 19
Explorer 49
Luna 22
Hiten
Clementine
Lunar Prospector
Lunar Reconnaissance Orbiter
SMART-1
SELENE
Chang'e 1
Chang'e 2
Chandrayaan I

Saturn

Cassini-Huygens Mission

Sun

Pioneer 5
Pioneer 6
Pioneer 7
Pioneer 8
Pioneer 9
Helios probes
ISEE-3
Ulysses
WIND
SOHO
ACE
Genesis
STEREO probes

Venus

Venera 9
Venera 10
Pioneer Venus Orbiter
Venera 15
Venera 16
Magellan
Venus Express

Space Encyclopedia

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