Winglee, Robert - Sample Return using High Velocity Penetrators

Poster Topic: 
Abstract: 

There have only been a few sample return missions since the start of the space age. Their limited number reflects their high cost, with the most recent missions taking only small surface samples. This paper reports results from the development of a high velocity (150-600 m/s) penetrator that is able to take a core sample down to a few meters, and requires simpler orbital maneuvers to reduce the mass and cost requirements of a sample return mission. The penetrator is able to survive the high velocity impact through innovations associated with energy absorbing material that support the sample return container. Material for the solar system object move through a central feed system. Extraction of the sample is via an attached tether system that is used to both reduce the Delta V of the impact and return the sample to main spacecraft. Examples of survivability through impacts in playa and in rocky material are presented along with an overall mission scenario.