···174174175175(** {1 Element queries} *)
176176177177-let period el = if el.a <= 0. then infinity (* hyperbolic *) else (2. *. Float.pi) /. el.n
177177+let period el =
178178+ if el.a <= 0. then infinity (* hyperbolic *) else 2. *. Float.pi /. el.n
179179+178180let eccentricity el = el.e
179181let semi_major_axis el = el.a
180182let inclination el = el.i