Shell · 400 km · ISS shell

Debris density in the 400 km shell.

Name: Debris density — 400 km shell
Creator: Ephem
License: https://ephem.pages.dev/terms

Human spaceflight altitude. Very high atmospheric drag; anything not actively boosted decays within months.

§1 Notable objects at this altitude

ISS
Tiangong
Dragon/Cargo Dragon

§2 Last measured density

No live measurement available (the nightly propagator has not run yet, or the API is unreachable from this build). The API endpoint below will populate on the first successful run.

§3 Live endpoint

GET · https://ephem-api.YOUR-SUBDOMAIN.workers.dev/shell/density/400

curl -s https://ephem-api.YOUR-SUBDOMAIN.workers.dev/shell/density/400 \
  -H "Authorization: Bearer ek_live_..."

Refreshed nightly. Envelope includes every 5° latitude × 10° longitude bin with at least one object.