P78 — Orbital Logo Tool

An interactive tool for designing the P78 logo from real orbital mechanics: a constellation of satellites, each on its own true Keplerian orbit (the body sits at the focus). Spreading the orbital elements sculpts the fan of orbit traces; clustering the apogees to one side gives the one-sided look.

Live: https://mwlambert.github.io/p78-logo/

Using it

• Orbital dials — satellites, eccentricity, inclination spread, RAAN spread, apogee direction & spread, view tilt, roll.
• Design dials — scale, line weight; drag the canvas to pan, scroll to zoom.
• Export — PNG (the current frame) or SVG (clean vector of the full mark).
• Theme toggle (white-on-black ↔ brand orange), recording mode for clean capture.

Layout

index.html            the tool (single file, no dependencies)
img/                  P78 wordmark SVGs used by the overlay (hosted)
scripts/dev-server.mjs  local live-reload server (port 5178)
assets/               brand source files — gitignored, local only
archive/              superseded experiments — gitignored, local only

Local development

node scripts/dev-server.mjs   # then open http://localhost:5178/

Edits to index.html auto-refresh the browser (and any phone on the same Wi-Fi at http://<your-LAN-ip>:5178/).

Publishing

The live site is GitHub Pages off main. To update:

git add -A && git commit -m "…" && git push

The site rebuilds ~30–60s after each push.