# JPL NAIF Solar ephemerides

Public numeric SPK records, extracted without fitting from the listed NASA/JPL NAIF kernels. Original centers, segment models, frame, type 2/3 Chebyshev coefficients and float64 units retained. Range receipts and hashes: sources.json. Only the 50 installed bodies and eight coordinate bridges are included, January 2000 through December 2030 TDB. No imagery, private data, credentials or NASA endorsement. No light-time or aberration corrections. Per-body solutions are composed with explicit DE441 barycenters and a DE441 Sun origin, not represented as one unified numerical integration. Source-model uncertainties are not supplied.

Sources: https://naif.jpl.nasa.gov/pub/naif/generic_kernels/spk/ and https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/req/spk.html