diff --git a/NumericalData/CDPP-AMDA/PSP/epiLo/psp-loic-cht.xml b/NumericalData/CDPP-AMDA/PSP/epiLo/psp-loic-cht.xml
index 79fd588..55a9bce 100644
--- a/NumericalData/CDPP-AMDA/PSP/epiLo/psp-loic-cht.xml
+++ b/NumericalData/CDPP-AMDA/PSP/epiLo/psp-loic-cht.xml
@@ -8,7 +8,7 @@
           <AlternateName>Protons TOF only</AlternateName>
           <ReleaseDate>2019-11-12T10:48:29Z</ReleaseDate>
          <Description>         
-             Ion composition mode channel T.  The available spectras are obtained by summing 80 directions by wedges of 10 detectors into producing 8 data with 8 looking directions.
+             Ion composition mode channel T. In this TOF only mode, all ions are counted as protons. The available spectras are obtained by summing 80 directions by wedges of 10 detectors into producing 8 data with 8 looking directions.
              * Species : Protons
              * Nb of energy Bins : 32
              * Energy range : 30 keV - 47.318 MeV
diff --git a/NumericalData/CDPP-AMDA/PSP/epiLo/psp-loic-omt.xml b/NumericalData/CDPP-AMDA/PSP/epiLo/psp-loic-omt.xml
index 33ba477..0119ce5 100644
--- a/NumericalData/CDPP-AMDA/PSP/epiLo/psp-loic-omt.xml
+++ b/NumericalData/CDPP-AMDA/PSP/epiLo/psp-loic-omt.xml
@@ -8,7 +8,7 @@
           <AlternateName>Protons TOF only</AlternateName>
           <ReleaseDate>2019-11-12T10:48:29Z</ReleaseDate>
          <Description>         
-             Ion composition mode channel T. The available spectras are obtained by summing over all directions.
+             Ion composition mode channel T. In this TOF only mode, all ions are counted as protons. The available spectras are obtained by summing over all directions.
              * Species : Protons
              * Nb of energy Bins : 32
              * Energy range : 30 keV - 47.318 MeV
--
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