Sources
Where every number comes from
Space Radar reads 31 feeds from 14 public sources. A source is a publisher; a feed is one address of theirs that is read. Each row below is a feed, a row of the registry this page is built from (registry/sources.yaml): the licence is the publisher's terms as the project recorded them, and the date is the day they were first written into CREDITS.md.
The sources: CelesTrak (6 feeds), Open Notify (1 feed), The Space Devs (5 feeds), NASA JPL (4 feeds), NASA Exoplanet Archive (1 feed), NASA Deep Space Network (1 feed), NOAA SWPC (4 feeds), NASA EONET (2 feeds), NASA DONKI (1 feed), NASA SDO (1 feed), PacIOOS (1 feed), NOAA CoastWatch (2 feeds), GDACS (1 feed), Wikidata (1 feed).
| Source | Licence | Terms | Terms recorded | Saved copy last read |
|---|---|---|---|---|
| celestrak-visual Orbital data: CelesTrak (T. S. Kelso) Source: CelesTrak | Free to use under CelesTrak's usage policy (no licence text; the rate limits are enforced) | terms | 7 September 2026 | 15 October 2026 |
| celestrak-stations Orbital data: CelesTrak (T. S. Kelso) Source: CelesTrak | Free to use under CelesTrak's usage policy (no licence text; the rate limits are enforced) | terms | 7 September 2026 | 15 October 2026 |
| celestrak-active Orbital data: CelesTrak (T. S. Kelso) Source: CelesTrak | Free to use under CelesTrak's usage policy (no licence text; the rate limits are enforced) | terms | 7 September 2026 | 15 October 2026 |
| celestrak-last30 Orbital data: CelesTrak (T. S. Kelso) Source: CelesTrak | Free to use under CelesTrak's usage policy (no licence text; the rate limits are enforced) | terms | 7 September 2026 | 15 October 2026 |
| celestrak-supplemental-starlink Orbital data: CelesTrak (T. S. Kelso) Source: CelesTrak | Free to use under CelesTrak's usage policy (no licence text; the rate limits are enforced) | terms | 7 September 2026 | 15 October 2026 |
| celestrak-satcat Orbital data: CelesTrak (T. S. Kelso) Source: CelesTrak | Free to use under CelesTrak's usage policy (no licence text; the rate limits are enforced) | terms | 7 September 2026 | 15 October 2026 |
| open-notify-astros Who is in space: Open Notify Source: Open Notify | No licence stated by the publisher (an open-source project); a handful of names and facts | terms | 5 October 2026 | 15 October 2026 |
| ll2-upcoming Launch data by The Space Devs Source: The Space Devs | No published licence; free up to 15 requests an hour | terms | 7 September 2026 | 15 October 2026 |
| ll2-events Launch data by The Space Devs Source: The Space Devs | No published licence; free up to 15 requests an hour | terms | 7 September 2026 | 15 October 2026 |
| ll2-stations Launch data by The Space Devs Source: The Space Devs | No published licence; free up to 15 requests an hour | terms | 7 September 2026 | 15 October 2026 |
| ll2-astronauts Launch data by The Space Devs Source: The Space Devs | No published licence; free up to 15 requests an hour | terms | 7 September 2026 | 15 October 2026 |
| ll2-previous Launch data by The Space Devs Source: The Space Devs | No published licence; free up to 15 requests an hour | terms | 7 September 2026 | 15 October 2026 |
| jpl-sbdb-neo Orbits: NASA/JPL Small-Body Database Source: NASA JPL | NASA/JPL content, generally not copyrighted in the United States; the API publishes no licence text | terms | 5 October 2026 | 15 October 2026 |
| jpl-sbdb-comets Orbits: NASA/JPL Small-Body Database Source: NASA JPL | NASA/JPL content, generally not copyrighted in the United States; the API publishes no licence text | terms | 5 October 2026 | 15 October 2026 |
| nasa-exoplanet-archive Exoplanets: NASA Exoplanet Archive (Caltech/IPAC), DOI 10.26133/NEA13 Source: NASA Exoplanet Archive | Publicly available; the archive asks to cite its table (DOI 10.26133/NEA13); no licence text | terms | 8 September 2026 | 14 October 2026 |
| jpl-cad Close approaches: NASA/JPL CNEOS Source: NASA JPL | NASA/JPL content, generally not copyrighted in the United States; the API publishes no licence text | terms | 5 October 2026 | 15 October 2026 |
| horizons-deep-space Ephemerides: JPL Horizons Source: NASA JPL | NASA/JPL content, generally not copyrighted in the United States; the API publishes no licence text | terms | 5 October 2026 | 15 October 2026 |
| dsn-now NASA Deep Space Network Source: NASA Deep Space Network | NASA content, generally not copyrighted in the United States; the endpoint is undocumented | terms | 7 September 2026 | 15 October 2026 |
| swpc-kp Space weather: NOAA SWPC Source: NOAA SWPC | US Government work, public domain | terms | 7 September 2026 | 15 October 2026 |
| swpc-ovation Aurora forecast: NOAA SWPC Source: NOAA SWPC | US Government work, public domain | terms | 5 October 2026 | 15 October 2026 |
| eonet-fires Fires, volcanoes and sea ice: NASA EONET Source: NASA EONET | NASA content, generally not subject to copyright in the United States (read 2026-10-09) | terms | 9 October 2026 | 15 October 2026 |
| eonet-volcanoes-ice Fires, volcanoes and sea ice: NASA EONET Source: NASA EONET | NASA content, generally not subject to copyright in the United States (read 2026-10-09) | terms | 9 October 2026 | 15 October 2026 |
| swpc-solar-regions Sunspot groups: NOAA SWPC Source: NOAA SWPC | US Government work, public domain (read 2026-10-09) | terms | 9 October 2026 | 15 October 2026 |
| swpc-edited-events Solar flares: NOAA SWPC Source: NOAA SWPC | US Government work, public domain (read 2026-10-12) | terms | 12 October 2026 | 15 October 2026 |
| donki-cme-analysis Coronal mass ejections: NASA DONKI (M2M Space Weather Analysis Office, CCMC) Source: NASA DONKI | No licence named; provided as is, as a courtesy to the community, prototyping quality (DONKI rules of the road and disclaimer, read 2026-10-12) | terms | 12 October 2026 | 15 October 2026 |
| sdo-aia-171 The Sun's face of the day: courtesy of NASA/SDO and the AIA, EVE, and HMI science teams Source: NASA SDO | Not copyrighted unless noted; non-commercial and educational use needs no authorization, credited "Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams" (read 2026-10-15) | terms | 15 October 2026 | 15 October 2026 |
| wind Wind: NOAA/NCEP Global Forecast System, through PacIOOS ERDDAP (University of Hawaii) Source: PacIOOS | May be used and redistributed for free, not for legal use (the dataset's own licence attribute, read 2026-10-09) | terms | 9 October 2026 | 15 October 2026 |
| ocean-currents Ocean currents: NOAA CoastWatch, from satellite altimetry (Sentinel data courtesy of the Copernicus Programme; generated using AVISO+ products) Source: NOAA CoastWatch | May be used and redistributed for free, not for legal use (the dataset's own licence attribute, read 2026-10-12) | terms | 12 October 2026 | 15 October 2026 |
| ocean-temperature Sea temperature: NOAA NCEI OISST v2.1, through NOAA CoastWatch West Coast ERDDAP Source: NOAA CoastWatch | May be used and redistributed for free, not for legal use (the dataset's own licence attribute, read 2026-10-12); NCEI asks to be cited | terms | 12 October 2026 | 14 October 2026 |
| gdacs-tc Tropical cyclones: GDACS, European Commission Joint Research Centre (CC BY 4.0) Source: GDACS | CC BY 4.0 by the European Commission's reuse decision; GDACS calls it purely indicative | terms | 29 September 2026 | 15 October 2026 |
| wikidata-observatories Observatory locations: Wikidata (CC0) Source: Wikidata | CC0 1.0: Wikidata's structured data is dedicated to the public domain | terms | 5 October 2026 | 14 October 2026 |
"Saved copy last read" is the day this site's harvester last fetched the source, taken from the saved copy's index when the page opens; it is not the day the terms were read. Where a licence says "no licence stated", that is the answer, and the project treats it as no permission to redistribute beyond what the credits say.
Not in use
2 more rows of the registry are switched off: nothing is fetched from them, nothing of theirs is saved or served, and they are counted in neither number above. They stay listed so that the reason stays readable in the registry.
| Source | Licence | Terms | Terms recorded | Saved copy last read |
|---|---|---|---|---|
| esa-neocc-close Close approaches: ESA NEOCC Source: ESA NEOCC | All rights reserved by ESA; no reuse licence found, so the saved copy is not cleared for redistribution | terms | 5 October 2026 | Not read: switched off |
| space-track-tip Reentry predictions: 18 SDS via Space-Track.org Source: Space-Track.org | Switched off: Space-Track needs an account and its user agreement restricts passing the data on; nothing is fetched | terms | 5 October 2026 | Not read: switched off |
Everything else
The libraries, textures, 3D models, photographs, sounds and fonts, each with its licence, are in CREDITS.md, which a test holds to the registries line by line.