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TEMPO3

CubeSat-based satellite

Field	Value
name	TEMPO3
image	Tempo-3-0003.jpg
image_caption	Artist view of TEMPO3 in orbit.
applications	To demonstrate centripetal artificial gravity generation
spacecraft_type	Satellite

The Tethered Experiment for Mars inter-Planetary Operations (TEMPO3) is a proposed CubeSat-based satellite meant to demonstrate centripetal artificial gravity generation. After launch, the spacecraft will spin end over end to create gravity-like acceleration at both ends of a tether. The project is being run by the Mars Society. It aims building from high-altitude tests to eventual orbital flight. Status is unknown since 2012.

Background

In the Mars Direct architecture for a humans-to-Mars mission, the crew on their way to Mars uses their discarded upper stage as a counterweight to spin end over end. This action generates gravity for the crew and prevents them from having to spend the six-month trip in zero-gravity conditions. Gemini 11 and 12 showed that the concept was viable, but no gravity-related work has taken place since then using tethers.

TEMPO3 was selected as the winner of the Mars Project Challenge, run by the Mars Society in 2008, to determine the group's next major project.

Mission concept

The spacecraft will launch with other CubeSat satellites. After separating from its carrier, TEMPO3 will spin up and then split into two parts connected by a tether. Separating will slow the spin rate, but will increase the acceleration measured at the ends. Accelerometers on board the spacecraft will sense the amount of gravity being demonstrated and will beam that data to Earth.

References

"CubeSat in the News".
http://members.marssociety.org/TMQ/TMQ-V1-I1.pdf {{Webarchive. link. (2017-04-21 pg15-Tom Hill)
"Gemini 11".
K.C. Jones, "[http://www.informationweek.com/news/hardware/supercomputers/210101779 'TEMPO 3' Artificial Gravity Satellite On Mars Society's To-Do List]," ''InformationWeek,'' August 19, 2008
Tom Hill and Alex Kirk, "[http://thespacereview.com/article/1194/1 TEMPO3: the Mars Society’s newest project]," ''The Space Review,'' August 25, 2008

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mars-society proposed-satellites cubesats

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