v1.0.0 - Initial Stable Release

jpl-ephemeris v1.0.0

Initial stable release of the native JME C library.

Highlights

• Native C ephemeris library with unified API
• Public API surface includes:
  • 204 public functions
  • 462 public constants
• Supports multiple calculation engines:
  • JPL
  • MOSHIER
  • VSOP_ELP_MEEUS
  • AUTO
• Strict engine selection support
• JPL kernel-backed mode via CALCEPH
• Analytical engine support for non-JPL operation
• Native library intended for direct use and for language wrappers such as PHP FFI

Engine Modes

• JPL
  • strict kernel-backed computation
  • requires CALCEPH support and readable .bsp kernels
• MOSHIER
  • analytical engine path
• VSOP_ELP_MEEUS
  • analytical engine stack
• AUTO
  • native default engine selection behavior

JPL Kernel Note

This release does not bundle JPL .bsp kernels.

Kernels are provided separately and can be downloaded from:

• https://github.com/jayeshmepani/jpl-ephemeris/releases/tag/jpl-kernels

Distribution

This release is the native foundation for downstream wrappers and integrations.

Version

• Release version: 1.0.0

Notes

This is the first stable tagged release of the native JME C library.

JPL BSP Kernels

JPL planetary BSP kernels for use with the JME JPL/CALCEPH backend.

Assets:

• de440s.bsp - small kernel
• de440.bsp - medium kernel
• de441.bsp.part-00, de441.bsp.part-01, ... - split large kernel
• SHA256SUMS.txt - checksums for full kernels and split parts

The large de441.bsp kernel is published as split parts because it is larger than GitHub's single release-asset limit.

Reassemble de441.bsp:

cat de441.bsp.part-* > de441.bsp
sha256sum -c SHA256SUMS.txt

Windows PowerShell:

cmd /c copy /b de441.bsp.part-* de441.bsp
certutil -hashfile de441.bsp SHA256

Source: https://ssd.jpl.nasa.gov/ftp/eph/planets/bsp/

JPL/NAIF kernel files are redistributed for user convenience. Users should review the source provider's terms and documentation before relying on these data files.