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NASA's Meteoroid Environment Office (MEO)

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Lunar Impact Monitoring

Artist concept of a lunar impactThe mission of the Lunar Impact Monitoring project is to use Earth-based observations of the dark portion of the moon to establish the rates and sizes of large meteoroids (greater than 500 grams, or one pound in mass) striking the lunar surface.
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About the Meteoroid Environment Office

False color video still from 2002 Leonid meteor shower, seen through a camera operated by the NASA Meteoroid Environment Office at Marshall Space Flight Center NASA's Meteoroid Environment Office (MEO) is the NASA organization responsible for meteoroid environments pertaining to spacecraft engineering and operations. The MEO leads NASA technical work on the meteoroid environment and coordinates the existing meteoroid expertise at NASA centers.

The objective of the MEO is to understand the flux and the associated risk of meteoroids impacting spacecraft traveling in and beyond Earth’s orbit. Meteoroids impacting spacecraft are a quantifiable risk as they can puncture pressurized volumes (i.e. space station modules, propellant tanks) or destroy components (i.e. engines, electronics).

While meteoroids have never been definitively proven to have destroyed a spacecraft, there have been several in-flight anomalies attributed to meteoroid impacts including loss of the Olympus satellite to control system failure induced by a Perseid shower meteor impact. Understanding the meteoroid environment can help spacecraft designers to better protect critical components on spacecraft or avoid critical operations such as extravehicular activities during periods of higher flux such as meteor showers.

The primary functions of the MEO are to:
* Lead NASA technical work on the meteoroid environment; coordinate the existing meteoroid expertise at NASA centers.
* Provide design, operational determination, and review assistance for NASA Programs/projects with respect to risk mitigation.
* Develop, maintain, and distribute a more accurate sporadic meteoroid model.
* Provide meteor shower forecasts to NASA spacecraft operators.

Know Your Meteors

Meteorite designated Northwest Africa NWA 7034 Interesting facts to know about meteors and meteor showers.
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Contact Information

Bill Cooke
MEO Lead, NASA MSFC

Media contacts:
Marshall Space Flight Center
Building 4200, Room 120
Huntsville, Alabama 35812

Page Last Updated: December 17th, 2013
Page Editor: Brooke Boen