All repositoriesASTS / Satellite connectivity

Constellation Commons.

Estimate geometric ground coverage, slant range and propagation latency for a satellite connectivity scenario.

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INSIDE THE REPOSITORY

A complete place to start.

Minimum-elevation geometry
Spherical-cap coverage
Free-space propagation latency
Exact token contract and pair inspection
Bounded ERC-20 transfer activity explorer
Local community funding scenario planner
Evidence export with SHA-256 verification
Nine automated checks and GitHub CI
MIT license, method, architecture and API docs

Node.js 22No runtime dependenciesVercel ready

Run locally

npm test
npm start

Open localhost:3000. The technology runs with no API key. Live chain and DNS reads use public providers.

Deploy in your account

Extract the archive and upload its contents to a GitHub repository you control. Import that repository into Vercel, or run npx vercel --prod in the extracted folder. The included configuration sets the output directory and tests.

Return to the Deploy studio to publish your project, token pair and repository on the public build board.

29 SOURCE FILES / V1.0.0

Inspect everything.

.env.example.github/workflows/check.yml.gitignoreLICENSEREADME.mdSECURITY.mdapi/activity.mjsapi/dns.mjsapi/health.mjsapi/token.mjsdev.mjsdocs/API.mddocs/ARCHITECTURE.mddocs/METHOD.mdexamples/inputs.jsonpackage.jsonpublic/app.mjspublic/config.mjspublic/core/engine.mjspublic/core/math.mjspublic/favicon.svgpublic/index.htmlpublic/styles.cssserver/api.mjsserver/handler.mjstests/api.test.mjstests/engine.test.mjstools/verify-evidence.mjsvercel.json

This download contains only this standalone project. It includes no account credentials.

METHOD

What it calculates.

Central angle = acos(R/(R+h)·cos(elevation))-elevation. Coverage = 2πR²(1-cos(angle)); range follows the triangle between satellite, observer and Earth center.

LIMITS

What the evidence means.

Ignores terrain, weather, spectrum, capacity, overlap and handover. Area-derived satellite counts are lower bounds, not a working constellation design.

The funding planner does not transfer tokens or route rewards. Deploying this repository does not imply company endorsement or investment value.

Inputs you control.

Input	Type	Units
Altitude	Bounded number	km
Minimum elevation	Bounded number	degrees
Link frequency	Bounded number	GHz