ECI2ECEF & ECEF2ECI Transformations

Version 2.1.1 (2.2 MB) by Meysam Mahooti
The transformation from celestial to terrestrial reference system and vice versa
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Updated 21 Feb 2025

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References:
Montenbruck O., Gill E.; Satellite Orbits: Models, Methods and Applications; Springer Verlag, Heidelberg; Corrected 3rd Printing (2005).
Vallado D. A; Fundamentals of Astrodynamics and Applications; McGraw-Hill, New York; 4th edition (2013).
https://celestrak.org/software/vallado/matlab.zip
https://celestrak.org/SpaceData/EOP-All.txt
https://www.iausofa.org/

Cite As

Meysam Mahooti (2026). ECI2ECEF & ECEF2ECI Transformations (https://www.mathworks.com/matlabcentral/fileexchange/61957-eci2ecef-ecef2eci-transformations), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2024b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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ECI2ECEF & ECEF2ECI_ECI&J2000

ECI2ECEF & ECEF2ECI_ECI_IAU 2006 Resolutions

ECI2ECEF & ECEF2ECI_J2000

Version Published Release Notes
2.1.1

The comments in ECI2ECEF.m and ECEF2ECI.m were modified.
2.1.0

It was revised on 2024-08-21.
2.0.0

test.m was modified.
1.1.1

The gast.m is modified.
1.1.0.0

Revised on March 12, 2020.
1.0.0.0