Science
POPACS 2
Atmospheric Drag Research Satellite · NASA / Utah State University
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PopAcs-2, part of NASA's Prediction and Study of Space Weather Effects on Cubesats — three identical spheres of different densities launched together specifically to measure how atmospheric drag varies with solar activity, data used to improve the accuracy of predicting when satellites will re-enter.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 191–541 mi (307–871 km)
- Inclination
- 81.0°
- One orbit
- 96.3 minutes15.0 orbits a day
- NORAD ID
- 39269
- Int’l designator
- 2013-055E
- Launched
- 2013
Orbital elements from CelesTrak, as of 22 Sep 2026.
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