{"action":"opened","issue":{"url":"https://api.github.com/repos/esa/pykep/issues/40","labels_url":"https://api.github.com/repos/esa/pykep/issues/40/labels{/name}","comments_url":"https://api.github.com/repos/esa/pykep/issues/40/comments","events_url":"https://api.github.com/repos/esa/pykep/issues/40/events","html_url":"https://github.com/esa/pykep/issues/40","id":90688192,"number":40,"title":"planet.keplerian.ref_mjd2000 should be float not epoch","user":{"login":"dhennes","id":4736348,"avatar_url":"https://avatars.githubusercontent.com/u/4736348?v=3","gravatar_id":"","url":"https://api.github.com/users/dhennes","html_url":"https://github.com/dhennes","followers_url":"https://api.github.com/users/dhennes/followers","following_url":"https://api.github.com/users/dhennes/following{/other_user}","gists_url":"https://api.github.com/users/dhennes/gists{/gist_id}","starred_url":"https://api.github.com/users/dhennes/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dhennes/subscriptions","organizations_url":"https://api.github.com/users/dhennes/orgs","repos_url":"https://api.github.com/users/dhennes/repos","events_url":"https://api.github.com/users/dhennes/events{/privacy}","received_events_url":"https://api.github.com/users/dhennes/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-06-24T14:15:14Z","updated_at":"2015-06-24T14:15:14Z","closed_at":null,"body":"    pl = planet.keplerian(epoch(0), (1., 0., 0), (0., 1., 0.), 1., 0., 0., 0.)\r\n    type(pl.ref_mjd2000)\r\n    >>> PyKEP.core._core.epoch\r\n\r\nThe instance object `ref_mjd2000` of `PyKEP.planet.keplerian` should be a `float` and not `epoch`. Alternatively, one could rename the it to `ref_epoch`."}}