[Ground-station] GMAT vs. STK/HPOP - call for help

[Juno Woods]

Can you say more about the parameters? Is the satellite inserted into LEO
or GTO or some other orbit? Is phasing needed?

On Fri, Jan 29, 2021 at 5:29 PM Michelle Thompson via Ground-Station
<ground-station at lists.openresearch.institute> wrote:

> For the Debris Mitigation presentation to the FCC, we want to give answers
> (and show our work) about how much delta-v we need for some of the proposed
> orbits for minimum viable amateur spacecraft in the Amateur Radio Satellite
> Service.
>
> There's a question that Jan King and I have about a critical altitude and
> low surface_area:mass ratio spacecraft. It occurred to us that we really
> might want to compare results across two or more software packages to build
> some confidence.
>
> Jan has a set of results from a spreadsheet from SMAD.
>
> https://smad.com/
>
> The calculation under review is around 165km with a relatively lightweight
> 6U spacecraft. It's acting like it wants to do some strange things. Is this
> physics, or at a limit of the model?
>
> We have a couple of people who are good or are getting good at GMAT.
>
> https://software.nasa.gov/software/GSC-17177-1
>
> Question: Are the atmospheric models in GMAT good enough for this
> calculation?
>
> Does anyone have access to STK/HPOP to run this calculation, for
> comparison?
>
> https://www.agi.com/products/stk
>
> https://help.agi.com/stk/11.0.1/Content/hpop/hpop.htm
>
> Thank you,
> -Michelle W5NYV
>
>
>
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