Update src/bsk_rl/sim/dyn/base.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Mark2000

src/bsk_rl/sim/dyn/base.py

@@ -507,7 +507,8 @@ def setup_simple_nav_object(self, priority: int = 1400, **kwargs) -> None:
     def altitude_valid(self) -> bool:
         """Check that satellite has not deorbited.
 
-        Checks if altitude is greater than 200km above Earth's surface.
+        Checks if altitude is greater than the configurable minimum orbital radius
+        (`min_orbital_radius`). The default value corresponds to 200km above Earth's surface.
         """
         return np.linalg.norm(self.r_BN_N) > self.min_orbital_radius