SOURCE/LEDGER

Credits belong in the interface.

The app lists the source families below. The website mirrors those credits instead of inventing authority.

Satellite Data

Sources used to identify satellites and calculate their positions.

Space-Track.org

GP elements, SATCAT facts, object status, launch IDs, launch-site codes.

Catalog, facts, tracking freshness, launch metadata.

CelesTrak

OMM/TLE-style orbital element mirrors and supplemental catalog groups.

Fast public fallback for live orbit propagation.

Live Orbit catalog mirror

Prebuilt shards from the same public catalog data.

Faster startup, facts lookup, and synced insights.

Reference Data

Sources used for context, links, and planning.

Gunter's Space Page

Spacecraft and mission reference pages.

External reference links.

Jonathan McDowell / planet4589

Satellite catalog reference material.

Historical catalog cross-checks.

Open-Meteo

Cloud cover and sky-condition weather.

Pass planning context.

Maps and Imagery

Visual sources used for the globe, sky, and maps.

Apple MapKit

Apple map tiles, annotations, and map controls.

Launch site maps and pass maps.

NASA Blue Marble

Earth day texture and global imagery references.

Globe rendering.

NASA Visible Earth

Night lights and global Earth imagery references.

Globe night-side styling.

NASA SVS Deep Star Maps

All-sky star maps built from Gaia, Hipparcos, and Tycho catalogs.

Sky background.

Natural Earth

Public-domain land and boundary vectors.

Map and geography overlays.