diff --git a/src/pages/cesium/cesium-helper/demo_02_Track.ts b/src/pages/cesium/cesium-helper/demo_02_Track.ts
index 00f6129..35d0e8e 100644
--- a/src/pages/cesium/cesium-helper/demo_02_Track.ts
+++ b/src/pages/cesium/cesium-helper/demo_02_Track.ts
@@ -1,8 +1,10 @@
-import type { Viewer } from 'cesium';
-
+import { TrackingReferenceFrame, type Viewer } from 'cesium';
 import * as Cesium from 'cesium';
 import { eciToEcf, gstime, propagate, twoline2satrec } from 'satellite.js';
 
+/**
+ * 未来2小时内每30秒的位置
+ */
 export async function demo_02_Track(viewer: Viewer) {
   const tle = `STARLINK-11371 [DTC]
 1 62879U 25024A   25062.93300820  .00003305  00000+0  21841-4 0  9995
@@ -204,11 +206,12 @@ export async function demo_02_Track(viewer: Viewer) {
     }, false),
   });
 
-  // 设置相机自动跟踪卫星
-  viewer.trackedEntity = satelliteEntity;
+  {
+    // https://github.com/CesiumGS/cesium/issues/8350
+    // 设置相机自动跟踪卫星
+    viewer.trackedEntity = satelliteEntity;
+  }
 
   // 开始动画
   viewer.clock.shouldAnimate = true;
-
-  return satelliteEntity;
 }