From af910fba5e036a549d593b59218cb631cef864fe Mon Sep 17 00:00:00 2001
From: Jon Beniston <jon@beniston.com>
Date: Wed, 28 Apr 2021 15:31:45 +0100
Subject: [PATCH] Delete old ground tracks. Fix for #877.

---
 plugins/feature/satellitetracker/satellitetrackersgp4.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/plugins/feature/satellitetracker/satellitetrackersgp4.cpp b/plugins/feature/satellitetracker/satellitetrackersgp4.cpp
index c61b0cb17..f74060219 100644
--- a/plugins/feature/satellitetracker/satellitetrackersgp4.cpp
+++ b/plugins/feature/satellitetracker/satellitetrackersgp4.cpp
@@ -479,6 +479,8 @@ void getSatelliteState(QDateTime dateTime,
                                                 noOfPasses);
         }
 
+        qDeleteAll(satState->m_groundTrack);
+        qDeleteAll(satState->m_predictedGroundTrack);
         getGroundTrack(dateTime, tle0, tle1, tle2, groundTrackSteps, false, satState->m_groundTrack);
         getGroundTrack(dateTime, tle0, tle1, tle2, groundTrackSteps, true, satState->m_predictedGroundTrack);
     }