diff --git a/earth-observation.html b/earth-observation.html
index d3bac25..9b23041 100644
--- a/earth-observation.html
+++ b/earth-observation.html
@@ -350,6 +350,7 @@ <h2>References</h2>
           <li><a href="https://www.esa.int/ESA_Multimedia/Images/2020/03/Geostationary_transfer_orbit" target="_blank">Transfer orbits and geostationary transfer orbit (GTO)</a></li>
           <li><a href="https://www.esa.int/ESA_Multimedia/Images/2019/07/Avoiding_Earth_s_shadow" target="_blank">Lagrange points</a></li>
           <li><a href="https://www.esa.int/ESA_Multimedia/Images/2020/03/Geostationary_transfer_orbit" target="_blank">Geostationary transfer orbit (GTO)</a></li>
+          <li><a href="https://user.eumetsat.int/resources/user-guides/high-latitude-simulator-for-mtg-fci-instrument" target="_blank">High latitude simulator for MTG FCI instrument</a></li>
         </ul>
       </section>