diff --git a/NumericalData/AMDA/MAVEN/SEP/mvn-sep1-clb.xml b/NumericalData/AMDA/MAVEN/SEP/mvn-sep1-clb.xml
index 23e387c..8f91656 100644
--- a/NumericalData/AMDA/MAVEN/SEP/mvn-sep1-clb.xml
+++ b/NumericalData/AMDA/MAVEN/SEP/mvn-sep1-clb.xml
@@ -43,8 +43,8 @@
       <MeasurementType>EnergeticParticles</MeasurementType>
       <TemporalDescription>
          <TimeSpan>
-             <StartDate>1970-01-01T00:00:00Z</StartDate>
-             <StopDate>1970-01-01T00:00:00Z</StopDate>
+             <StartDate>2014-09-22T19:34:31Z</StartDate>
+             <StopDate>2016-08-15T00:00:12Z</StopDate>
          </TimeSpan>
          <Cadence_Min>PT2S</Cadence_Min>
          <Cadence_Max>PT32S</Cadence_Max>  
diff --git a/NumericalData/AMDA/MAVEN/SEP/mvn-sep2-clb.xml b/NumericalData/AMDA/MAVEN/SEP/mvn-sep2-clb.xml
index 046dff2..c6903e0 100644
--- a/NumericalData/AMDA/MAVEN/SEP/mvn-sep2-clb.xml
+++ b/NumericalData/AMDA/MAVEN/SEP/mvn-sep2-clb.xml
@@ -43,8 +43,8 @@
       <MeasurementType>EnergeticParticles</MeasurementType>
       <TemporalDescription>
          <TimeSpan>
-             <StartDate>1970-01-01T00:00:00Z</StartDate>
-             <StopDate>1970-01-01T00:00:00Z</StopDate>
+             <StartDate>2014-09-22T19:34:33Z</StartDate>
+             <StopDate>2016-08-15T00:00:12Z</StopDate>
          </TimeSpan>
          <Cadence_Min>PT2S</Cadence_Min>
          <Cadence_Max>PT32S</Cadence_Max>  
--
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