LUNAR-A
Translation- LUNAR-A
Infobox_Spacecraft
Name = LUNAR A
Caption = LUNAR A spacecraft, artist's impression
Organization =JAXA
Major_Contractors =
Mission_Type = Orbiter, penetrator
Flyby_Of =
Satellite_Of =Moon
Orbital_Insertion_Date =
Launch = cancelled
Launch_Vehicle =M-5
Decay =
Mission_Duration =
NSSDC_ID = LUNAR-A
Webpage = [http://www.jaxa.jp/missions/projects/sat/exploration/lunar_a/index_e.html LUNAR-A page]
Mass = 520 kg
Power =
Orbital_elements =
Semimajor_Axis =
Eccentricity =
Inclination = 30°
Orbital_Period = 2h
Apoapsis = 200 km
Periapsis = 300 km
Orbits =LUNAR-A is a
Japan esespacecraft that was scheduled to be launched in August 2004. After many delays (primarily due to potential faults in its thrusters [ [http://www.spacetoday.net/Summary/2285 Lunar-A launch delayed] Space Today (March 31, 2004)] , the project was eventually cancelled in January 2007. [cite news |title=Japan's Moon mission in jeopardy |url=http://www.cbc.ca/technology/story/2007/01/15/japan-moon.html|publisher=Associated Press |date=2007-01-15 |accessdate=2007-01-15 ] It would have been carried into space by a Japanese M-V launch vehicle from theKagoshima Space Center . However, the development of its seismic penetrators will be continued until the end of FY 2007. They will reportedly be used on a futureRussia n mission, most likelyLuna-Glob .JAXA also plans to use the penetrators on other targets.The vehicle would have been cylindrical in shape, with a diameter of 2.2 m and a height of 1.7 m. It would have had four solar panels and was engineered to be spin-stabilized. It would have entered into an elliptical orbit around the
Moon , and would have deployed two penetrators at an altitude of 40 km on opposite sides of the lunar body. These 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 of up to 330 meters per second, and would have readily penetrated the lunarregolith .The penetrators would have contained
seismometer s and heat-flow probes. They were designed to operate for a year, and would have transmitted data back to the orbiting craft. They were planned to observe lunar quakes and to determine if the Moon has a core. The lunar surface is considered nearly transparent at the transmission frequencies, so the compressed signals would have been received from orbit.Once the penetrators deployed, the LUNAR-A spacecraft would have maneuvered to an orbital altitude of 200 km above the surface. The craft was to have carried a monochromatic imaging camera with a resolution of 30 m.
ee also
*
Japan Aerospace Exploration Agency
*Moon
*Future lunar missions
*Exploration of the Moon References
External links
* [http://www.jaxa.jp/missions/projects/sat/exploration/lunar_a/index_e.html JAXA page]
* [http://www.isas.jaxa.jp/e/enterp/missions/lunar-a/index.shtml ISAS page]
* [http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=LUNAR-A NASA Page about LUNAR-A]
* [http://solarsystem.nasa.gov/missions/profile.cfm?MCode=LUNAR-A LUNAR-A Mission Profile] by [http://solarsystem.nasa.gov NASA's Solar System Exploration]
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Фильмы
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