diff --git a/plugins/Satellites/src/Satellite.cpp b/plugins/Satellites/src/Satellite.cpp
index a7d93385fdc1b..16cd2e663f619 100644
--- a/plugins/Satellites/src/Satellite.cpp
+++ b/plugins/Satellites/src/Satellite.cpp
@@ -224,7 +224,9 @@ Satellite::Satellite(const QString& identifier, const QVariantMap& map)
 		{ gSatWrapper::BELOW_HORIZON,   N_("The satellite is below the horizon") }
 	};
 
-	update(0.);
+	StelCore *core = StelApp::getInstance().getCore();
+	double JD=core->getJD();
+	update(core, JD, 0.);
 }
 
 Satellite::~Satellite()
@@ -810,12 +812,12 @@ void Satellite::recomputeSatData()
 	calculateSatDataFromLine2(tleElements.second);
 }
 
-void Satellite::update(double)
+void Satellite::update(StelCore *core, double JD, double deltaTime)
 {
+	Q_UNUSED(deltaTime)
 	if (pSatWrapper && orbitValid)
 	{
-		StelCore* core = StelApp::getInstance().getCore();
-		epochTime = core->getJD(); // + timeShift; // We have "true" JD (UTC) from core, satellites don't need JDE!
+		epochTime = JD; // + timeShift; // We have "true" JD (UTC) from core, satellites don't need JDE!
 
 		pSatWrapper->setEpoch(epochTime);
 		position                 = pSatWrapper->getTEMEPos();
diff --git a/plugins/Satellites/src/Satellite.hpp b/plugins/Satellites/src/Satellite.hpp
index e848c4966cdf0..5f65990e61d43 100644
--- a/plugins/Satellites/src/Satellite.hpp
+++ b/plugins/Satellites/src/Satellite.hpp
@@ -226,8 +226,11 @@ class Satellite : public StelObject
 	//! the tleElements values and configures internal orbit parameters.
 	void setNewTleElements(const QString& tle1, const QString& tle2);
 
-	// calculate faders, new position
-	void update(double deltaTime);
+	//! calculate faders, new position
+	//! @param core current StelCore
+	//! @param JD Julian day, UTC. (Satellites don't use JDE!)
+	//! @param deltaTime (currently unused)
+	void update(StelCore *core, double JD, double deltaTime);
 
 	double getDoppler(double freq) const;
 	static bool showLabels;
diff --git a/plugins/Satellites/src/Satellites.cpp b/plugins/Satellites/src/Satellites.cpp
index 434ed9d223ba1..eea88a8628aba 100644
--- a/plugins/Satellites/src/Satellites.cpp
+++ b/plugins/Satellites/src/Satellites.cpp
@@ -2809,7 +2809,8 @@ void Satellites::update(double deltaTime)
 	if (!hintFader && hintFader.getInterstate() <= 0.f)
 		return;
 
-	StelCore *core = StelApp::getInstance().getCore();
+	static StelCore *core = StelApp::getInstance().getCore();
+	double JD=core->getJD();
 
 	if (qAbs(core->getTimeRate())>=Satellite::timeRateLimit) // Do not show satellites when time rate is over limit
 		return;
@@ -2822,7 +2823,7 @@ void Satellites::update(double deltaTime)
 	for (const auto& sat : std::as_const(satellites))
 	{
 		if (sat->initialized && sat->displayed)
-			sat->update(deltaTime);
+			sat->update(core, JD, deltaTime);
 	}
 }
 
diff --git a/src/gui/AstroCalcDialog.cpp b/src/gui/AstroCalcDialog.cpp
index bac4be40ca344..0137d136d8fcf 100644
--- a/src/gui/AstroCalcDialog.cpp
+++ b/src/gui/AstroCalcDialog.cpp
@@ -752,7 +752,7 @@ void AstroCalcDialog::drawAziVsTimeDiagram()
 #ifdef USE_STATIC_PLUGIN_SATELLITES
 			if (isSatellite)
 			{
-				sat->update(0.0);
+				sat->update(core, JD, 0.0);
 			}
 			else
 #endif
@@ -5030,7 +5030,7 @@ void AstroCalcDialog::drawAltVsTimeDiagram()
 			if (isSatellite)
 			{
 				// update data for that single satellite only
-				sat->update(0.0);
+				sat->update(core, JD, 0.0);
 			}
 #endif
 			StelUtils::rectToSphe(&az, &alt, selectedObject->getAltAzPosAuto(core));