diff --git a/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-espec.xml b/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-espec.xml
index 3dc0630..2e21e07 100644
--- a/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-espec.xml
+++ b/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-espec.xml
@@ -13,7 +13,11 @@
spase://CDPP/Person/George.Ho
DataProducer
-
+
+
+ EPPS PDS products
+ https://pds-ppi.igpp.ucla.edu/data/MESS-E_V_H_SW-EPPS-3-FIPS-DDR-V2.0/DOCUMENT/DDR_SIS/EPPS_DDR_SIS.HTM
+
spase://CDPP/Repository/AMDA
diff --git a/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-nobs.xml b/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-nobs.xml
index 9f5fb5c..53d43ea 100644
--- a/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-nobs.xml
+++ b/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-nobs.xml
@@ -12,6 +12,10 @@
spase://CDPP/Person/George.Ho
DataProducer
+
+ EPPS PDS products
+ https://pds-ppi.igpp.ucla.edu/data/MESS-E_V_H_SW-EPPS-3-FIPS-DDR-V2.0/DOCUMENT/DDR_SIS/EPPS_DDR_SIS.HTM
+
spase://CDPP/Repository/AMDA
diff --git a/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-ntp.xml b/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-ntp.xml
index 46fc64e..c5fcaab 100644
--- a/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-ntp.xml
+++ b/NumericalData/AMDA/MESSENGER/FIPS/mess-fips-ntp.xml
@@ -22,7 +22,11 @@ In this version of the dataset, many of these products are provided
spase://CDPP/Person/George.Ho
DataProducer
-
+
+
+ EPPS PDS products
+ https://pds-ppi.igpp.ucla.edu/data/MESS-E_V_H_SW-EPPS-3-FIPS-DDR-V2.0/DOCUMENT/DDR_SIS/EPPS_DDR_SIS.HTM
+
spase://CDPP/Repository/AMDA
--
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