CanX-7 nanosatellite shows drag sails are effective at deorbiting after just one week

CanX-7 nanosatellite shows drag sails are effective at deorbiting after just one week

 

After the CanX-7 nanosatellite deployed its drag sails only a week ago, early results indicate the sails are having a noticeable effect.  Space Flight Laboratory (SFL), which developed CanX-7, has announced the altitude decay rate changed significantly following the deployment in the late evening of 4 May 2017 (Toronto time). 

 

A graph of the altitude decay rate shows the aerodynamic drag on the satellite has increased as a result of a changed ballistic coefficient. SFL expects that after a certain amount of time CanX-7 will aerodynamically stabilize due to the so-called “shuttlecock” effect, with all four sails to the rear of the satellite as it travels around Earth.

 

“This is an earlier-than-expected positive result from CanX-7,” explains Dr. Robert Zee, SFL Director. “It confirms and validates the effectiveness of the drag sails in accelerating orbital decay.” 

 

The CanX-7 deorbiting demonstration is intended to space qualify SFL-developed drag sail technology.  The technology can then be used with confidence to ensure that small satellites comply with Inter-Agency Space Debris Coordination Committee (IADC) guidelines for space debris mitigation.  It is an important technology for ensuring that the environment is kept safe for future generations of low Earth orbit missions.

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