Array of Low Energy X-ray Imaging Sensors
An artist's conception of the Alexis satellite in oribt. (Credit: DOE)
Lifetime: April 1993 - April 2005
Country (primary): United States
Primary Science
The Array of Low Energy X-ray Imaging Sensors, or Alexis, satellite was a small satellite. Alexis carried an ultrasoft X-ray telescope array for astronomy studies. It also carried instrumentation to test the feasibility of quickly building low-cost sensors for arms treaty verification.
Science Highlights
- Mapped the diffuse X-ray backgroun in three emission line bands
- Performed a narrow-band survey of X-ray point sources