fix: 🐛 correct bug in deep space math

thkruz · Aug 8, 2022 · c7ec9ca · c7ec9ca
1 parent 6c8358b
commit c7ec9ca
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/src/sgp4/sgp4.ts b/src/sgp4/sgp4.ts
@@ -1527,10 +1527,11 @@ class Sgp4 {
             d3222 * Math.cos(-xomi + xli - g32) +
             d5220 * Math.cos(xomi + xli - g52) +
             d5232 * Math.cos(-xomi + xli - g52) +
-            2.0 * d4410 * Math.cos(x2omi + x2li - g44) +
-            d4422 * Math.cos(x2li - g44) +
-            d5421 * Math.cos(xomi + x2li - g54) +
-            d5433 * Math.cos(-xomi + x2li - g54);
+            2.0 *
+              (d4410 * Math.cos(x2omi + x2li - g44) +
+                d4422 * Math.cos(x2li - g44) +
+                d5421 * Math.cos(xomi + x2li - g54) +
+                d5433 * Math.cos(-xomi + x2li - g54));
           xnddt *= xldot;
         }