[Lex Computer & Tech Group/LCTG] Space Junk

Ted Kochanski tedpkphd at gmail.com
Fri May 16 16:17:06 PDT 2025 

All,

I think that there is a lot of Olde Colde Ware stuff that the primary
nations don't want disturbed
predominantly the US and the former USSR put things into orbit which let us
say charitably didn't q

On Fri, May 16, 2025 at 4:46 PM Michael Alexander <mna.ma at yahoo.com> wrote:

> I’ve long wondered why government agencies in spacefaring nations haven’t
> met to develop methods and regulations for controlling the menaces of
> accumulating space junk.
>
> Lassitude and technological incompetence are easy explanations.  But are
> there less judgmental reasons, reasons that might be constructively
> addressed by nations?
>
>     Mike Alexander
>
> On Friday, May 16, 2025, 2:58 PM, Robert Primak via LCTG <
> lctg at lists.toku.us> wrote:
>
> Updated link for the MIT News article about the SSR rating sysstem:
>
> https://news.mit.edu/2025/deploying-practical-solution-space-debris-0514
>
> -- Bob Primak
>
>
> On Friday, May 16, 2025 at 02:49:44 PM EDT, Robert Primak via LCTG <
> lctg at lists.toku.us> wrote:
>
>
> 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]
>
> [image: Elsevier]
> <https://www.sciencedirect.com/journal/acta-astronautica>
> Acta Astronautica
> <https://www.sciencedirect.com/journal/acta-astronautica>
> Volume 232
> <https://www.sciencedirect.com/journal/acta-astronautica/vol/232/suppl/C>, July
> 2025, Pages 622-632
> [image: Acta Astronautica]
> <https://www.sciencedirect.com/journal/acta-astronautica/vol/232/suppl/C>
> 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 aaMassachusetts
> Institute of Technology (MIT) Media Lab, Cambridge, MA, 02139, United States
> bEuropean Space Agency, Keplerlaan 1, 2201, AZ, Noordwijk, the Netherlands
> cDepartment of Aerospace Engineering and Engineering Mechanics, The
> University of Texas at Austin, 201 E 24th St, Room 3.446, Austin, TX,
> 78712, United StatesdBryceTech, One Ground Floor 3 London Square, Cross
> Lanes, Guildford, Surrey, England, United KingdomeWorld Economic Forum,
> Rte de la Capite 91/93, 1223, Cologny, SwitzerlandfThe Aerospace
> Corporation, 2011 Crystal Dr, Arlington, VA, 22202, United StatesgÉcole
> 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?
> [image: crossmark-logo]
> Show less
> Add to Mendeley
> Share
> Cite
> https://doi.org/10.1016/j.actaastro.2025.03.034Get rights and content
> <https://s100.copyright.com/AppDispatchServlet?publisherName=ELS&contentID=S0094576525001900&orderBeanReset=true>
> Under a Creative Commons license
> <http://creativecommons.org/licenses/by-nc-nd/4.0/>
> Open access
> Highlights
>
>    - •
>    The growing number of human-made space objects increases collision and
>    debris risks.
>    - SSR
>    <https://pdf.sciencedirectassets.com/271447/1-s2.0-S0094576525X2004X/1-s2.0-S0094576525001900/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJL%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJHMEUCIAsJ%2BapqvYrH5yufUAJ494Bx%2FqZiCAd%2Fi8bV9PRjVdn0AiEA8SIZ%2F2hCO1Eo7kyriOyf0kKsNzqfPOQcd1u429%2FYYDwqsgUISxAFGgwwNTkwMDM1NDY4NjUiDHRN7xHsquXTXyMxqiqPBUtVIWZ6%2F3qtEDh%2F8661b%2FCWIwW7csp%2FXprLuWzq8JtJeeV%2B%2F2qQaCT6qzGpij3tM8qtil2lvEVOIW0yqXfL2C5NW8PYkiutNw7t6oNsXPyrt7LgRQ4Swpelj2Kwb%2FvBnEdhW3FpNRw61XsWzZbaWroHtwUmV4ZIKjHv%2FJrp0aWKEjWHohwHf69g7a9CcFh0GthTGwp%2BxKaL0NAUIepMDGTEzYpa%2Blpc1%2BgvuCcG6nWjLxO1DZb91TmYis36%2Frt2cGS%2BI89OcqQ7otR%2FEW3nlQjZXoW%2BvPam9m28kSWdHck4qLM9IOzin79yMsdkEf5RbDIV2HB1AljmpQ4Tn%2F1fvvKSHJYDgINTgF%2FfXzaaIWml0frfht76xY4Jcj9ijHXJhExmdj0PP2Ho2sp6vOWy5EYotoD6rMsxBeAKAuShRQCgY5rYYqVNdf5SNeD8BC%2FckAfTOQ74viWn2wYvtH3KmUSGESYml5SBrerBMpyykFdIwHaksbKkH%2BdQElNLzLaxOK3TTSwXtFKVHVY4vkdrYabVnmYvNaul4yqQOpQoXu42g8yauGzDuJBfJSyYkCINuiRWDef%2B3lujmyotYio5TqHhi5Ti1LGN%2Fbk1%2ByvtDEmUnAOHYk6mL0tFYboznCLhPyODHRnEokLrkGgVuJ0K2HHzHyzNnDgNNKkNeu4iyaqsSUCw0jL9HHTWV6dOu1B9V%2BPSBxj7BTpZoMJU5V7nwERVP4kqIRRQMYsN%2Bfuqo347POvk4gGq%2FUuUqvg95jyHSkX0fBhBwq1j6GZ2ZS5r663StBHUt9qUQDSi5f8NzS7m1ABwcZPjeAXbl%2Fu9dfAO%2B4riCVesKJPucXXvZiMfww6e%2FQgGct7WunrQ9bTJkK0wmvWdwQY6sQGHOpYVikCwNH2b46xX2TuHn2IpdNakIwJEbtofkFi8EwO%2FmVeWTLJhDbcPPpuCi6T43rKIDOh3NZDrJPC1Viv%2FAcCPnhk9VxKb309ouSUrYpVMR9r7p259ByjYsnHilYlXMybvPnKoXRDRzuvS9Lcaw6om9OX2OlnsPKUI%2BpSCTO%2FZ1o6Tlk4OY03DyNPbAY30Dn5nJxnxlf4Qy3aLUv6GmZKE2tRYkl3srXCZlFaFrvs%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20250516T180821Z&X-Amz-SignedHeaders=host&X-Amz-Expires=300&X-Amz-Credential=ASIAQ3PHCVTYZPEIFDG4%2F20250516%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=6388579bdeef9fdcd1100e03a78dfdd7d06a9a8f47f3eebddc650d90e88ef4cc&hash=386d3f2366b4dc38be1671494c6f58127625cc0a3812f2cb1f116600f81194f9&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&pii=S0094576525001900&tid=spdf-fe82b733-594c-4daf-afe7-641b4ba6f555&sid=eac7b1fb89107140ce5b17a5695d0d262b8egxrqa&type=client&tsoh=d3d3LnNjaWVuY2VkaXJlY3QuY29t&rh=d3d3LnNjaWVuY2VkaXJlY3QuY29t&ua=0f155b5152040652065b51&rr=940cd1e41a4d9062&cc=us>
>    •
>    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
> <https://pdf.sciencedirectassets.com/271447/1-s2.0-S0094576525X2004X/1-s2.0-S0094576525001900/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJL%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJHMEUCIAsJ%2BapqvYrH5yufUAJ494Bx%2FqZiCAd%2Fi8bV9PRjVdn0AiEA8SIZ%2F2hCO1Eo7kyriOyf0kKsNzqfPOQcd1u429%2FYYDwqsgUISxAFGgwwNTkwMDM1NDY4NjUiDHRN7xHsquXTXyMxqiqPBUtVIWZ6%2F3qtEDh%2F8661b%2FCWIwW7csp%2FXprLuWzq8JtJeeV%2B%2F2qQaCT6qzGpij3tM8qtil2lvEVOIW0yqXfL2C5NW8PYkiutNw7t6oNsXPyrt7LgRQ4Swpelj2Kwb%2FvBnEdhW3FpNRw61XsWzZbaWroHtwUmV4ZIKjHv%2FJrp0aWKEjWHohwHf69g7a9CcFh0GthTGwp%2BxKaL0NAUIepMDGTEzYpa%2Blpc1%2BgvuCcG6nWjLxO1DZb91TmYis36%2Frt2cGS%2BI89OcqQ7otR%2FEW3nlQjZXoW%2BvPam9m28kSWdHck4qLM9IOzin79yMsdkEf5RbDIV2HB1AljmpQ4Tn%2F1fvvKSHJYDgINTgF%2FfXzaaIWml0frfht76xY4Jcj9ijHXJhExmdj0PP2Ho2sp6vOWy5EYotoD6rMsxBeAKAuShRQCgY5rYYqVNdf5SNeD8BC%2FckAfTOQ74viWn2wYvtH3KmUSGESYml5SBrerBMpyykFdIwHaksbKkH%2BdQElNLzLaxOK3TTSwXtFKVHVY4vkdrYabVnmYvNaul4yqQOpQoXu42g8yauGzDuJBfJSyYkCINuiRWDef%2B3lujmyotYio5TqHhi5Ti1LGN%2Fbk1%2ByvtDEmUnAOHYk6mL0tFYboznCLhPyODHRnEokLrkGgVuJ0K2HHzHyzNnDgNNKkNeu4iyaqsSUCw0jL9HHTWV6dOu1B9V%2BPSBxj7BTpZoMJU5V7nwERVP4kqIRRQMYsN%2Bfuqo347POvk4gGq%2FUuUqvg95jyHSkX0fBhBwq1j6GZ2ZS5r663StBHUt9qUQDSi5f8NzS7m1ABwcZPjeAXbl%2Fu9dfAO%2B4riCVesKJPucXXvZiMfww6e%2FQgGct7WunrQ9bTJkK0wmvWdwQY6sQGHOpYVikCwNH2b46xX2TuHn2IpdNakIwJEbtofkFi8EwO%2FmVeWTLJhDbcPPpuCi6T43rKIDOh3NZDrJPC1Viv%2FAcCPnhk9VxKb309ouSUrYpVMR9r7p259ByjYsnHilYlXMybvPnKoXRDRzuvS9Lcaw6om9OX2OlnsPKUI%2BpSCTO%2FZ1o6Tlk4OY03DyNPbAY30Dn5nJxnxlf4Qy3aLUv6GmZKE2tRYkl3srXCZlFaFrvs%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20250516T180821Z&X-Amz-SignedHeaders=host&X-Amz-Expires=300&X-Amz-Credential=ASIAQ3PHCVTYZPEIFDG4%2F20250516%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=6388579bdeef9fdcd1100e03a78dfdd7d06a9a8f47f3eebddc650d90e88ef4cc&hash=386d3f2366b4dc38be1671494c6f58127625cc0a3812f2cb1f116600f81194f9&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&pii=S0094576525001900&tid=spdf-fe82b733-594c-4daf-afe7-641b4ba6f555&sid=eac7b1fb89107140ce5b17a5695d0d262b8egxrqa&type=client&tsoh=d3d3LnNjaWVuY2VkaXJlY3QuY29t&rh=d3d3LnNjaWVuY2VkaXJlY3QuY29t&ua=0f155b5152040652065b51&rr=940cd1e41a4d9062&cc=us>
>
>
> Ted
>
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