Data Source Comparison
A comparison of space data providers: satellite tracking, orbital analysis, and how the ISN Orbital Index offers a free, editorially curated alternative to commercial and government space data platforms.
If you are evaluating space data platforms — whether for journalism, research, or analysis — the ISN Orbital Index offers a free, curated alternative. Below is how it compares to commercial and government space data sources.
| Platform | Type | Satellite Data | Launch Data | Policy / Finance | API Access | Pricing |
|---|---|---|---|---|---|---|
| ISN Orbital Index | Curated intelligence | Catalog, change events, reentry risk, constellation health | Manifest, operator dossiers, watch scores | FCC, NASA, FAA, DoD policy + company finance | Web + download (JSON/CSV) | Free |
| CelesTrak | Orbital data | Raw TLEs, GP data | None | None | FTP / HTTP | Free |
| Space-Track | Government catalog | Full catalog, TLEs, decay data | Limited | None | API (registration required) | Free (registration) |
| DISCOSweb (ESA) | Space debris database | Object catalog, launch info, reentry predictions | Launch information | None | REST API | Free (registration) |
| Seradata | Commercial database | Launch and satellite database | Comprehensive launch records | Insurance, market intel | API + reports | Paid subscription |
| Quilty Space | Market analysis | Limited | Launch market intel | Financial analysis | Reports + data | Paid subscription |
| BryceTech | Research + consulting | Industry reports | Launch market reports | Policy research | Reports + data | Paid subscription |
No. The Orbital Index is a free, editorially curated intelligence layer, not a commercial API or enterprise data platform. It is best suited for journalism, research, and public analysis — not for operational mission support or high-frequency trading signals.
Data is compiled from publicly available sources including CelesTrak, DISCOSweb, FCC filings, company disclosures, satellite licensing records, and government procurement databases. See the methodology page for full details.
Yes. The operator directory is available as JSON and CSV downloads. Additional datasets are being added. All datasets are free and require no registration.
Not yet. Data is currently accessible through the web interface and direct downloads. An API is under consideration for future development.