diff --git a/frontend/public/earth/js/controls.js b/frontend/public/earth/js/controls.js
index cb36c094..45d9cdc0 100644
--- a/frontend/public/earth/js/controls.js
+++ b/frontend/public/earth/js/controls.js
@@ -194,24 +194,13 @@ export function resetView(camera) {
 
 function setupRotateControls(camera, earth) {
   const rotateBtn = document.getElementById('rotate-toggle');
-  const tooltip = rotateBtn?.querySelector('.tooltip');
-  
-  function updateRotateIcon() {
-    const isRotating = getAutoRotate();
-    rotateBtn.innerHTML = isRotating ? '⏸️' : '▶️';
-    if (tooltip) {
-      tooltip.textContent = isRotating ? '暂停旋转' : '开始旋转';
-    }
-  }
   
   rotateBtn.addEventListener('click', function() {
-    toggleAutoRotate();
-    const isRotating = getAutoRotate();
-    updateRotateIcon();
+    const isRotating = toggleAutoRotate();
     showStatusMessage(isRotating ? '自动旋转已开启' : '自动旋转已暂停', 'info');
   });
   
-  updateRotateIcon();
+  updateRotateUI();
   
   document.getElementById('reset-view').addEventListener('click', function() {
     resetView(camera);
@@ -260,55 +249,28 @@ function setupTerrainControls() {
   }
 }
 
-function setupMouseControls(camera, renderer) {
-  let previousMousePosition = { x: 0, y: 0 };
-  
-  renderer.domElement.addEventListener('mousedown', (e) => {
-    isDragging = true;
-    previousMousePosition = { x: e.clientX, y: e.clientY };
-  });
-  
-  renderer.domElement.addEventListener('mouseup', () => {
-    isDragging = false;
-  });
-  
-  renderer.domElement.addEventListener('mousemove', (e) => {
-    if (isDragging) {
-      const deltaX = e.clientX - previousMousePosition.x;
-      const deltaY = e.clientY - previousMousePosition.y;
-      
-      if (earth) {
-        earth.rotation.y += deltaX * 0.005;
-        earth.rotation.x += deltaY * 0.005;
-      }
-      
-      previousMousePosition = { x: e.clientX, y: e.clientY };
-    }
-  });
-}
-
 export function getAutoRotate() {
   return autoRotate;
 }
 
-export function setAutoRotate(value) {
-  autoRotate = value;
+function updateRotateUI() {
   const btn = document.getElementById('rotate-toggle');
   if (btn) {
-    btn.classList.toggle('active', value);
+    btn.classList.toggle('active', autoRotate);
+    btn.innerHTML = autoRotate ? '⏸️' : '▶️';
     const tooltip = btn.querySelector('.tooltip');
-    if (tooltip) tooltip.textContent = value ? '暂停旋转' : '自动旋转';
+    if (tooltip) tooltip.textContent = autoRotate ? '暂停旋转' : '开始旋转';
   }
 }
 
+export function setAutoRotate(value) {
+  autoRotate = value;
+  updateRotateUI();
+}
+
 export function toggleAutoRotate() {
   autoRotate = !autoRotate;
-  const btn = document.getElementById('rotate-toggle');
-  if (btn) {
-    btn.classList.toggle('active', autoRotate);
-    const tooltip = btn.querySelector('.tooltip');
-    if (tooltip) tooltip.textContent = autoRotate ? '暂停旋转' : '自动旋转';
-  }
+  updateRotateUI();
   if (window.clearLockedCable) {
     window.clearLockedCable();
   }
diff --git a/frontend/public/earth/js/satellites.js b/frontend/public/earth/js/satellites.js
index df2c68cb..5156f6a3 100644
--- a/frontend/public/earth/js/satellites.js
+++ b/frontend/public/earth/js/satellites.js
@@ -312,10 +312,6 @@ export function selectSatellite(index) {
   return getSatelliteAt(index);
 }
 
-export function getSelectedSatellite() {
-  return selectedSatellite;
-}
-
 export function getSatellitePoints() {
   return satellitePoints;
 }
diff --git a/frontend/public/earth/js/ui.js b/frontend/public/earth/js/ui.js
index 1e9c1b7c..67b82bb6 100644
--- a/frontend/public/earth/js/ui.js
+++ b/frontend/public/earth/js/ui.js
@@ -29,16 +29,6 @@ export function updateZoomDisplay(zoomLevel, distance) {
   document.getElementById('camera-distance').textContent = distance + ' km';
 }
 
-// Update cable details
-export function updateCableDetails(cable) {
-  document.getElementById('cable-name').textContent = cable.name || 'Unknown';
-  document.getElementById('cable-owner').textContent = cable.owner || '-';
-  document.getElementById('cable-status').textContent = cable.status || '-';
-  document.getElementById('cable-length').textContent = cable.length || '-';
-  document.getElementById('cable-coords').textContent = cable.coords || '-';
-  document.getElementById('cable-rfs').textContent = cable.rfs || '-';
-}
-
 // Update earth stats
 export function updateEarthStats(stats) {
   document.getElementById('cable-count').textContent = stats.cableCount || 0;