diff --git a/AsbCloudInfrastructure/Services/Trajectory/TrajectoryService.cs b/AsbCloudInfrastructure/Services/Trajectory/TrajectoryService.cs
index 6f65e1b9..e3adac11 100644
--- a/AsbCloudInfrastructure/Services/Trajectory/TrajectoryService.cs
+++ b/AsbCloudInfrastructure/Services/Trajectory/TrajectoryService.cs
@@ -47,7 +47,6 @@ abstract class TrajectoryBaseService<TGeo, TCartesian>
         var geoCoordinatesArray = geoCoordinates.OrderBy(c => c.WellboreDepth).ToArray();
         for (var i = 1; i < geoCoordinatesLength; i++)
         {
-            var preCoordinates = cartesianCoordinates[i - 1];
             var coordinates = Calculate(cartesianCoordinates[i - 1],
                 geoCoordinatesArray[i - 1],
                 geoCoordinatesArray[i]);
diff --git a/AsbCloudWebApi.Tests/ServicesTests/TrajectoryVisualizationServiceTest.cs b/AsbCloudWebApi.Tests/ServicesTests/TrajectoryVisualizationServiceTest.cs
index f0e47e8e..e3740ebd 100644
--- a/AsbCloudWebApi.Tests/ServicesTests/TrajectoryVisualizationServiceTest.cs
+++ b/AsbCloudWebApi.Tests/ServicesTests/TrajectoryVisualizationServiceTest.cs
@@ -1,5 +1,4 @@
 using AsbCloudApp.Data;
-using AsbCloudApp.Data.WITS;
 using AsbCloudApp.Repositories;
 using AsbCloudInfrastructure.Services.Trajectory;
 using Moq;
@@ -84,12 +83,12 @@ namespace AsbCloudWebApi.Tests.ServicesTests
             var lastPointFact = result.Fact!.Last();
 
             Assert.Equal(0d, lastPointPlan.X, 0.1d);
-            Assert.Equal(0d, lastPointPlan.Y, 0.1d);
-            Assert.Equal(50d, lastPointPlan.Z, 0.1d);
+            Assert.Equal(-50d, lastPointPlan.Y, 0.1d);
+            Assert.Equal(0d, lastPointPlan.Z, 0.1d);
 
             Assert.Equal(0d, lastPointFact.X, 0.1d);
-            Assert.Equal(0d, lastPointFact.Y, 0.1d);
-            Assert.Equal(50d, lastPointFact.Z, 0.1d);
+            Assert.Equal(-50d, lastPointFact.Y, 0.1d);
+            Assert.Equal(0d, lastPointFact.Z, 0.1d);
         }
 
         [Fact]
@@ -118,12 +117,12 @@ namespace AsbCloudWebApi.Tests.ServicesTests
             var tolerancePlan = 0.001d;
             var toleranceFact = 0.001d;
 
-            Assert.InRange(lastPointPlan.Z, 10 + tolerancePlan, 20 - tolerancePlan);
-            Assert.InRange(lastPointPlan.Y, 0 + tolerancePlan, 10 - tolerancePlan);
+            Assert.InRange(lastPointPlan.Z, -10 - tolerancePlan, 0 - tolerancePlan);
+            Assert.InRange(lastPointPlan.Y, -20 - tolerancePlan, -10 + tolerancePlan);
             Assert.InRange(lastPointPlan.X, 0 + tolerancePlan, 10 - tolerancePlan);
 
-            Assert.InRange(lastPointFact.Z, 10 + toleranceFact, 20 - toleranceFact);
-            Assert.InRange(lastPointFact.Y, 0 + toleranceFact, 10 - toleranceFact);
+            Assert.InRange(lastPointFact.Z, -10 - toleranceFact, 0 - toleranceFact);
+            Assert.InRange(lastPointFact.Y, -20 - toleranceFact, -10 + toleranceFact);
             Assert.InRange(lastPointFact.X, 0 + toleranceFact, 10 - toleranceFact);
         }
     }