Small Payload Quick Return
The system uses an Exo-Brake, a parachute-like drag device for use in the low-pressure exosphere of Low Earth Orbit. This is the first part of a three part return system, operating from 350 to 100 km.
TechEdSat-3p took over 60 days to deorbit, while TechEdSat-4 reentered in about 30 days.:Fig 3
Several investigations related to the SPQR programs and TechEdSat have been flown on Sub-Orbital Aerodynamic Re-entry Experiments (SOAREX) sounding rockets flights.
SOAREX-6 flew 27 November 2008 on an ATK Sub-orbital/Orion 50xl sounding rocket.
SOAREX-7 flew 28 May 2009 aboard a Terrier-Orion sounding rocket launched from Wallops Flight Facility (WFF) in Virginia. A TDRV (Tube Deployed Re-entry Vehicle) was successfully tested after the flight reached its apogee of 134 km.
On SOAREX-8, which launched on a Terrier Black-Brant suborbital sounding rocket, a wireless sensor module, a camera, various communication devices, and a full Exo-Brake were tested.
On SOAREX-9, a wireless sensor module, a camera, and various communication devices were tested.
- Characterizing An Experimental Decelerator For Delivering Nano-Sat Payloads To Planetary Surfaces Kevin Ramus et al., U. of Idaho, 
- The SPQR as an Option for Returning Payloads from the ISS after the Termination of STS Flights Marcus Murbach et al., NASA Ames Research Center, 
- Exo-Brake Parachute Launched From International Space Station by Keith Cowling, SpaceRef, Nov 2013 
- "TechEdSat-4 (Technological and Educational Nanosatellite-4) - Satellite Missions - eoPortal Directory". directory.eoportal.org. Retrieved 2019-02-23.
- "Exo-Brake Enables Safe Return for Small Spacecraft - Tech Briefs :: Aerospace & Defense Technology". www.aerodefensetech.com. Retrieved 2019-02-23.
- "Wayback Machine" (PDF). web.archive.org. 2016-12-29. Retrieved 2019-02-23.
- Murbach, Marcus. "TechEdSat 5 / PhoneSat 5 (T5/P5) SmallSat Presentation 2016". Retrieved 9 September 2018.
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