Space probe
Advanced Composition Explorer
NASA · launched 1997
Samples the solar wind about an hour before it reaches Earth.
Right now · as of
Sun–Earth L1
1.42 million km from Earth; a signal takes 4.7 s
147 million km from the Sun, moving at 0.36 km/s relative to Earth
Open in 3DFacts
- What it is
- Space probe
- Agency
- NASA
- Launched
- August 25, 1997
- Rocket
- Delta II 7920-8
- Launch site
- Cape Canaveral SLC-17A
- International designator
- 1997-045A
- 3D model
- NASA/Christopher R. Meaney