Sample Return from Shackleton Crater with the Deep Space Tether Pathfinder (DSTP) (original) (raw)

Abstract

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The paper presents the concept of a Deep Space Tether Pathfinder (DSTP) designed to facilitate sample return operations from Shackleton Crater on the Moon. The DSTP is proposed to meet planetary scale tether specifications, making it capable of addressing challenges like the absence of solar power and direct communication in difficult lunar environments. It aims to collect samples, including potential water ice, with efficient engineering solutions and real-time transmission capabilities.

Key takeaways

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  1. The DSTP aims to demonstrate planetary scale tethers for future Lunar Space Elevators (LSE).
  2. A 5000 km, 3400 kg tether will collect a sample from Shackleton Crater in a 'touch-and-go' manner.
  3. Return of the sample capsule utilizes tether dynamics to achieve a direct trajectory back to Earth.
  4. LSEI prototype is planned for deployment within this decade, leveraging commercially available materials.
  5. Developing tethers in space is essential for advancing exploration infrastructure in the inner solar system.

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References (6)

  1. Edwards, B.C. (2003) The Space Elevator, NASA NAIC Phase II Final Report.
  2. Pearson, J., Levin, E., Oldson, J., and Wykes, H. (2005) Lunar Space Elevators for Cislunar Space Development, Phase I Final Technical Report, NASA NAIC Research Su- baward No.: 07605-003-034, Star Technology and Research, Inc.
  3. Eubanks, T.M. and Laine, M., (2011) LADDER: The Development of a Prototype Lunar Space Elevator, 2011 Annual Meeting of the Lunar Exploration Analysis Group, 2043.
  4. Zylon Fiber PBO Technical Information (2001) Toyobo C o r p o r a t i o n , L t d , a v a i l a b l e f r o m http://www.toyobo.co.jp/seihin/kc/pbo/technical.pdf
  5. Haruyama, J., et al., (2008) Lack of Exposed Ice Inside Lunar South Pole Shackleton Crater, Science, 322, 938.
  6. Sears, D.W., et al., (2004) Lack of Exposed Ice Inside Lunar South Pole Shackleton Crater, Advances in Space Research, 34, 2276-2280.

FAQs

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What are the advantages of planetary scale tethers in space exploration?add

The study demonstrates that planetary scale tethers can expedite solar system exploration, enabling efficient sample returns from lunar craters, like Shackleton, and facilitating the construction of space elevators.

How does the DSTP's tether design influence its operational capabilities?add

The DSTP's 5000 km tether is designed for tip velocities exceeding 1 km/s, matching the dynamics required for lunar and Martian space elevators, thereby validating engineering prototypes.

What unique challenges does the DSTP face in lunar sample collection?add

The DSTP must operate without direct solar power and maintain stable communication during its 'touch-and-go' sample collection, particularly within permanently shadowed polar crater regions.

What is the expected timeline for the Lunar Space Elevator Infrastructure deployment?add

The first deployment of the Lunar Space Elevator Infrastructure is anticipated within this decade, contingent on advancements in tether technology and meteorite protection engineering.

What methods are proposed for the sample collection from the crater floor?add

The DSTP plans to employ a cannon-fired harpoon mechanism to collect samples, ensuring the sampling tip remains motionless over the crater floor for approximately 6 seconds.