"Guardian of the weather"

The first of a series of satellites of the Small satellites NASA's Solar, Anomalous, and Magnetospheric Particle Explorer, or SAMPEX, was launched on July 3, 1992 for the study of the host range of the subdivision surrounding the Earth, and acting on them cosmic rays. Lived much longer than suggested by its planned mission length of three years, and always provided all its life valuable information professionals Space Weather Mission SAMPEX now close to completion.

In the two decades of his work companion SAMPEX, which measures only 1 x 1.5 meters, has been one of the main sources of data on the change of background radiation around the Earth over time, and closely followed the radiation belts Van Allen, for which will now be watch was launched in August this year, the mission of NASA Radiation Belt Storm Probes (RBSP).

In early November, the satellite SAMPEX down so far that come out of orbit and is burnt at the entrance to the dense layers of the atmosphere.