diff --git a/Source/DataSources/CzmlDataSource.js b/Source/DataSources/CzmlDataSource.js
index 75a33583742c..f5555f88cd6d 100644
--- a/Source/DataSources/CzmlDataSource.js
+++ b/Source/DataSources/CzmlDataSource.js
@@ -627,8 +627,6 @@ define([
         var isReference = defined(packetData.reference);
         var hasInterval = defined(combinedInterval) && !combinedInterval.equals(Iso8601.MAXIMUM_INTERVAL);
 
-        var property = object[propertyName];
-
         if (!isReference) {
             var packetReferenceFrame = packetData.referenceFrame;
             if (defined(packetReferenceFrame)) {
@@ -654,6 +652,8 @@ define([
             return;
         }
 
+        var property = object[propertyName];
+
         var epoch;
         var packetEpoch = packetData.epoch;
         if (defined(packetEpoch)) {
diff --git a/Source/DataSources/OrientationProperty.js b/Source/DataSources/OrientationProperty.js
index bbb25c4b08c3..c0e3ddc059fe 100644
--- a/Source/DataSources/OrientationProperty.js
+++ b/Source/DataSources/OrientationProperty.js
@@ -115,7 +115,6 @@ define([
         return Quaternion.fromRotationMatrix(icrfToFixedRotation, scratchIcrfToFixed);
     }
 
-    var scratchMatrix3 = new Matrix3();
     var scratchQuaternion = new Quaternion();
 
     /**
diff --git a/Specs/DataSources/OrientationPropertySpec.js b/Specs/DataSources/OrientationPropertySpec.js
index 4847e8c342e3..2277c3c6d45f 100644
--- a/Specs/DataSources/OrientationPropertySpec.js
+++ b/Specs/DataSources/OrientationPropertySpec.js
@@ -20,7 +20,6 @@ defineSuite([
         ConstantProperty,
         Entity) {
     "use strict";
-    /*global jasmine,describe,xdescribe,it,xit,expect,beforeEach,afterEach,beforeAll,afterAll,spyOn,runs,waits,waitsFor*/
 
     var time = JulianDate.now();
 
diff --git a/Specs/DataSources/PositionPropertySpec.js b/Specs/DataSources/PositionPropertySpec.js
index 7b21017010d2..831a6c60ae0d 100644
--- a/Specs/DataSources/PositionPropertySpec.js
+++ b/Specs/DataSources/PositionPropertySpec.js
@@ -20,7 +20,6 @@ defineSuite([
         ConstantProperty,
         Entity) {
     "use strict";
-    /*global jasmine,describe,xdescribe,it,xit,expect,beforeEach,afterEach,beforeAll,afterAll,spyOn,runs,waits,waitsFor*/
 
     //Results of the below tests were verified against STK Components.
     var time = JulianDate.now();