naif-leapseconds 2025.4.22

NAIF Leapseconds Kernel for SPICE

naif_leapseconds: NAIF Leapseconds Kernel for SPICE

A Python package by the Asteroid Institute, a program of the B612 Foundation

This package ships the Navigation and Ancillary Information Facility's leapseconds kernel.

This is not an official NAIF package. It is an automatically generated mirror of the file so that it is installable via pip.

Every night at around 2:15 AM UTC, the NAIF leapseconds kernel is downloaded and compared (via md5 checksum) to the current version of this package. If the checksums are different, a new package will be published.

Installation

The latest version of the file can be install via pip:
pip install naif-leapseconds

Usage

import spiceypy as sp
from naif_leapseconds import leapseconds

sp.furnsh(leapseconds)

Acknowledgment

This project makes use of data provided and maintained by the Navigation and Ancillary Information Facility (NAIF).

References

[1] Acton, C.H.; "Ancillary Data Services of NASA's Navigation and Ancillary Information Facility;" Planetary and Space Science, Vol. 44, No. 1, pp. 65-70, 1996. DOI 10.1016/0032-0633(95)00107-7
[2] Charles Acton, Nathaniel Bachman, Boris Semenov, Edward Wright; A look toward the future in the handling of space science mission geometry; Planetary and Space Science (2017); DOI 10.1016/j.pss.2017.02.013