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The Q-PACE or Cu-PACE (CubeSat Particle Aggregation and Collision Experiment) is a 3U CubeSat mission developed at the University of Central Florida (UCF) to investigate the behaviour of dust particles in low gravity and to perform a long-duration microgravity experiments in orbit to observe novel low-speed collisions in greater numbers than possible in ground-based, parabolic and suborbital flight experiments.

The long durations will enable study of rare events, such as sticking or fragmentation that occur only in one collision in a thousand. The mission will examine impacts between compact millimeter-sized and centimeter-sized particles and aggregates of micron-sized grains. This size combination was selected due to experimental results that suggest combining particles with very different sizes enables a fraction of the larger bodies to grow.

The payload consists of a GoPro video camera and a test cell - one of the reservoir chambers contains glass and iron beads of 1 mm in diameter and the second reservoir contains SiO2 aggregates sieved to a size distribution around 100 m in diameter.

It was selected in 2015 by NASA's CubeSat Launch Initiative (CSLI) to be launched as part of the ELaNa program. It was launched on the ELaNa-20 mission on a dedicated LauncherOne. Afte reching orbit, the satellite failed to respond.

Nation: USA
Type / Application: Microgravity
Operator: University of Central Florida (UCF)
Contractors: University of Central Florida (UCF)
Equipment: Test cell
Configuration: CubeSat (3U)
Propulsion: None
Power: Solar cells, batteries
Mass: 2.76 kg
Satellite COSPAR Date LS Launch Vehicle Remarks
Q-PACE (Cu-PACE, SIMPLEx 2) 2021-002G ? 17.01.2021 Mo RW12/30 LauncherOne with CACTUS 1, ExoCube 2, MiTEE 1, PolarCube, TechEdSat 7, RadFxSat 2, CAPE 3, PICS 1, PICS 2, Prometheus 2.8, Prometheus 2.11


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