[Lex Computer & Tech Group/LCTG] Space Junk

Fri May 16 11:49:33 PDT 2025

 Great find, Ted.
I found a simpler presentation on the subject, in a recent edition of the MIT News. I think that's the version I'd go with for the potpourri.
https://news.mit.edu/2025/deploying-practical-solution-space-debris-0514%20and%20data%20sharing. 
This would be in addition to the MIT article about the effects of climate change on the persistence of space junk:
https://news.mit.edu/2025/study-climate-change-will-reduce-number-satellites-safely-orbit-space-0310 
If you have additional details, your input at the potpourri would be welcomed.
-- Bob Primak 

    On Friday, May 16, 2025 at 02:15:15 PM EDT, Ted Kochanski via LCTG <lctg at lists.toku.us> wrote:  

 A recent MIT News highlights a recent review paper [open access] on a rating system for new space [potential debris]

Acta Astronautica
Volume 232, July 2025, Pages 622-632
Space sustainability rating: Designing a composite indicator to incentivize satellite operators to pursue long-term sustainability of the space environment
Author links open overlay panelMinoo Rathnasabapathy a, Francesca Letizia b, Stijn Lemmens b, Moriba Jah c, Simon Potter d, Nikolai Khlystov e, Kristi Acuff a, Miles Lifson f, Scott Dorrington a, Sina Es haghi a, Emmanuelle David g, Jean-Paul Kneib g, Danielle Wood a   
   - a
      - Massachusetts Institute of Technology (MIT) Media Lab, Cambridge, MA, 02139, United States

   - b
      - European Space Agency, Keplerlaan 1, 2201, AZ, Noordwijk, the Netherlands

   - c
      - Department of Aerospace Engineering and Engineering Mechanics, The University of Texas at Austin, 201 E 24th St, Room 3.446, Austin, TX, 78712, United States

   - d
      - BryceTech, One Ground Floor 3 London Square, Cross Lanes, Guildford, Surrey, England, United Kingdom

   - e
      - World Economic Forum, Rte de la Capite 91/93, 1223, Cologny, Switzerland

   - f
      - The Aerospace Corporation, 2011 Crystal Dr, Arlington, VA, 22202, United States

   - g
      - École Polytechnique Fédérale de Lausanne (EPFL) eSpace, Rte Cantonale, 1015, Lausanne, Switzerland

Received 27 March 2025, Accepted 28 March 2025, Available online 3 April 2025, Version of Record 10 April 2025.

What do these dates mean?
Show lessAdd to MendeleyShareCitehttps://doi.org/10.1016/j.actaastro.2025.03.034Get rights and contentUnder a Creative Commons licenseOpen access
Highlights

   - •The growing number of human-made space objects increases collision and debris risks.
   - SSR •Operators should be incentivized to follow guidelines and limit space debris.
   - •Actions can be taken to reduce space debris in each phase of a space mission.
   - •Space Sustainability Rating, a non-profit, evaluates mission debris creation risks.
   - •SSR evaluates missions in six areas that measure the impact on the space environment.

Abstract
The rapid growth in satellite deployments, particularly with the emergence of large constellations, has amplified concerns over the sustainability of the orbital environment. Space mission operators can utilize different mechanisms during the design and operation of their missions to adhere to space sustainability best practices. This paper presents the Space Sustainability Rating (SSR), a novel initiative developed to incentivize satellite operators to adopt sustainable practices throughout mission lifecycles, and provides an overview of its history, design, and implementation. The SSR is a composite indicator that evaluates missions across multiple dimensions, including debris mitigation, collision avoidance, and data-sharing practices, providing operators with actionable feedback and recognition for their contributions to space sustainability. Drawing on methodologies from successful sustainability rating systems in other industries, such as LEED, the SSR combines simulations, questionnaires, and evidence verification to assess compliance with best sustainable practices. The rating framework is structured into six main modules, complemented by an overarching verification module, and is applicable across all mission phases. This paper discusses the challenges addressed by the SSR, its alignment with international debris mitigation guidelines, and its role in fostering voluntary sustainable behavior among space operators.SSR

Ted
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