naif_eop_historical: NAIF Historical Earth Orientation Parameters 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 high accuracy, historical Earth orientation parameters (EOP) kernel.

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

The current version of the file released on 2026 AUG 08 spans the following times: 1962 JAN 20 00:00:41.184 TDB - 2026 AUG 08 00:01:09.183 TDB

Installation

The latest version of the file can be installed via pip:
pip install naif-eop-historical

Usage

import spiceypy as sp
from naif_eop_historical import eop_historical

sp.furnsh(eop_historical)

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