What the Artemis II Mission Explorer collects

Last updated: 2026-05-10

What runs in your browser

The Mission Explorer is a static web app. There is no backend, no account system, no form. The 3D scene, timeline, and gallery all run locally on your device.

Analytics

With your consent, we load Google Analytics 4 (gtag.js, property G-RD405GEL8Q) with anonymized IP. Analytics is set to denied by default via Google Consent Mode v2. Nothing is recorded until you click "Accept" on the consent banner. If you decline or never interact with the banner, no analytics events are sent.

To revoke a prior consent: open browser DevTools, then Application then Local Storage, remove aem-consent-v1, then reload. An in-app revoke control will land in a future build.

Error tracking

With your consent, runtime JavaScript errors are sent to Sentry so that we can fix crashes. Sentry receives an anonymized client signature (user-agent, current URL, stack trace) but no personal data and no session replay. Sentry init is gated on the same consent flag as analytics.

NASA GIBS live clouds

The 3D Earth overlays a live cloud composite fetched from NASA GIBS (wvs.earthdata.nasa.gov). Tiles are cached in your browser's IndexedDB so repeat visits are faster and offline-friendlier. NASA's privacy practices apply to that fetch; we do not see or log any of it.

Storage

The app stores:

• One localStorage key (aem-consent-v1) holding "granted" or "denied".
• IndexedDB entries for cached NASA GIBS cloud tiles.

No cookies are set by the app itself. Google may set cookies once analytics consent is granted.

Contact

Questions, data requests, or security disclosures: adam@jesion.pl. Security disclosures are also welcome via /.well-known/security.txt.