[Lex Computer & Tech Group/LCTG] Space Junk

Ted Kochanski tedpkphd at gmail.com
Fri May 16 16:25:27 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 quite comply with the True Letter and Spirit of the
International Treaties about Open Access to Space.

Remember the Soviet Nuclear-reactor-powered radar satellite that had large
heavy chunks re-enter into Northern Canada.
Well some of the stuff that is being tracked is from that era -- and who
knows what

Ted


On Fri, May 16, 2025 at 7:17 PM Ted Kochanski <tedpkphd at gmail.com> wrote:

> 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
>> NetherlandscDepartment 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 States
>> gÉcole 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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