diff --git a/NumericalData/CDPP-AMDA/MAVEN/Ephemeris/maven-orb-marsobs1s.xml b/NumericalData/CDPP-AMDA/MAVEN/Ephemeris/maven-orb-marsobs1s.xml
index e4603d8..2fe0155 100644
--- a/NumericalData/CDPP-AMDA/MAVEN/Ephemeris/maven-orb-marsobs1s.xml
+++ b/NumericalData/CDPP-AMDA/MAVEN/Ephemeris/maven-orb-marsobs1s.xml
@@ -51,7 +51,7 @@
             <StartDate>2014-06-01T00:00:00Z</StartDate>
              <StopDate>2019-01-15T21:47:00Z</StopDate>
          </TimeSpan>
-         <Cadence>PT1M</Cadence>
+         <Cadence>PT1S</Cadence>
       </TemporalDescription>
       <ObservedRegion>Mars</ObservedRegion> 
       <Caveats>
--
libgit2 0.21.2