diff --git a/src/orbits.cpp b/src/orbits.cpp
index e50a0e8..da12546 100644
--- a/src/orbits.cpp
+++ b/src/orbits.cpp
@@ -72,14 +72,12 @@ orbitGetEccentricityVector(glm::dvec3 r, glm::dvec3 v, double mu)
 	return 1 / mu * ((v_mag - mu / r_mag) * r - (glm::dot(r, v) * v));
 }
 
-// NOTE: returns position vector in perifocal plane
 glm::dvec3
 orbitGetPositionVector(double r, double theta)
 {
 	return glm::dvec3(r * cos(theta), r * sin(theta), 0);
 }
 
-// NOTE: returns velocity vector in perifocal plane
 glm::dvec3
 orbitGetVelocityVector(double mu, double h, double e, double theta)
 {
diff --git a/src/orbits.h b/src/orbits.h
index fca8677..156e70e 100644
--- a/src/orbits.h
+++ b/src/orbits.h
@@ -110,8 +110,10 @@ orbitInit(double a, double e, double iota, double ohm, double omega, double nu);
 
 glm::dvec3 orbitGetEccentricityVector(glm::dvec3 r, glm::dvec3 v, double mu);
 
+// NOTE: returns position vector in perifocal plane
 glm::dvec3 orbitGetPositionVector(double r, double theta);
 
+// NOTE: returns velocity vector in perifocal plane
 glm::dvec3 orbitGetVelocityVector(double mu, double h, double e, double theta);
 
 // NOTE: return transform from perifocal to grav body (IJK) coordinate system