LUNAR-A
Encyclopedia
LUNAR-A is a cancelled Japan
ese spacecraft
project that was originally scheduled to be launched in August 2004. After many delays (primarily due to potential thruster faults, the project was eventually cancelled in January 2007. It has been planned to be launched on a Japanese M-V
rocket from the Kagoshima Space Center.
The vehicle would have been cylindrical, with a diameter of 2.2 m and a height of 1.7 m. It would have had four solar panel
s and was engineered to be spin-stabilized. Plans called for it to enter an elliptical orbit around the Moon
, and deploy two penetrators at an altitude of 40 km on opposite sides of the lunar body. The penetrators were to have been braked by a small rocket at an altitude of 25 km, then free fall to the surface. They were designed to withstand a collision speed of 330 meters per second to deeply penetrate the lunar regolith
.
Once the penetrators deployed, the LUNAR-A spacecraft was mission-planned to maneuver to an orbital altitude of 200 km above the lunar surface. The craft was to have carried a monochromatic imaging camera with a resolution of 30 m.
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
ese spacecraft
Spacecraft
A spacecraft or spaceship is a craft or machine designed for spaceflight. Spacecraft are used for a variety of purposes, including communications, earth observation, meteorology, navigation, planetary exploration and transportation of humans and cargo....
project that was originally scheduled to be launched in August 2004. After many delays (primarily due to potential thruster faults, the project was eventually cancelled in January 2007. It has been planned to be launched on a Japanese M-V
M-5 rocket
The M-V rocket, also called M-5 or Mu-5, was a Japanese solid-fuel rocket designed to launch scientific satellites. It was a member of the Mu family of rockets. The Institute of Space and Astronautical Science began developing the M-V in 1990 at a cost of 15 billion yen...
rocket from the Kagoshima Space Center.
The vehicle would have been cylindrical, with a diameter of 2.2 m and a height of 1.7 m. It would have had four solar panel
Photovoltaic module
A solar panel is a packaged, connected assembly of solar cells, also known as photovoltaic cells...
s and was engineered to be spin-stabilized. Plans called for it to enter an elliptical orbit around the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
, and deploy two penetrators at an altitude of 40 km on opposite sides of the lunar body. The penetrators were to have been braked by a small rocket at an altitude of 25 km, then free fall to the surface. They were designed to withstand a collision speed of 330 meters per second to deeply penetrate the lunar regolith
Regolith
Regolith is a layer of loose, heterogeneous material covering solid rock. It includes dust, soil, broken rock, and other related materials and is present on Earth, the Moon, some asteroids, and other terrestrial planets and moons.-Etymology:...
.
Once the penetrators deployed, the LUNAR-A spacecraft was mission-planned to maneuver to an orbital altitude of 200 km above the lunar surface. The craft was to have carried a monochromatic imaging camera with a resolution of 30 m.
See also
- Japan Aerospace Exploration AgencyJapan Aerospace Exploration AgencyThe , or JAXA, is Japan's national aerospace agency. Through the merger of three previously independent organizations, JAXA was formed on October 1, 2003, as an Independent Administrative Institution administered by the Ministry of Education, Culture, Sports, Science and Technology and the...
- MoonMoonThe Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
- Future lunar missions
- Exploration of the MoonExploration of the MoonThe physical exploration of the Moon began when Luna 2, a space probe launched by the Soviet Union, made an impact on the surface of the Moon on September 14, 1959. Prior to that the only available means of exploration had been observation. The invention of the optical telescope brought about the...