Cold Atom Interferometer Thermosphere Drag Measurement (CAITDM)

Project Story

Challenge

Upper atmosphere density affects the lifetime of low Earth orbit (LEO) satellites. Satellites without propulsion are slowed by drag, lose altitude and eventually re-enter. There were gaps in knowledge of how this density fluctuates over space and time. Cold atom sensors rely on complex ultra-high vacuum (UHV) systems, which must become far more compact for use in space.

Approach

Metamorphic developed radically new design methods for UHV systems. We drew on our engineering design expertise and our track record in quantum technologies. Using these, we abstracted complex vacuum and supporting sub-assemblies down to their fundamental geometric requirements.

Solution

This approach allowed the vacuum system and its supporting sub-assemblies to be consolidated and miniaturised for the breadboard accelerometer.

Outcome

The work helped enable a new “ultra-portable” phase of quantum technologies for space applications. It also supported more accurate measurement of atmospheric drag on LEO satellites.