Members of the astronomy club just posted an article about thediscovery of a small comet which orbit is in the same orbit planeas the Earth. In the article it is reported that the observationtook place when the comet was eclipsed by the sun just passing theaphelion, in a relative distance at that moment of 3.82 UA and anorbit with eccentricity of e=0.777.
They are calling you to form part of the group of immediatereaction to determine if the comet is a rick to planet Earth. Dothe calculation. Use Kepler laws to determine if the ellipse of thecomet (period, formula, intersection points with the ellipse of theearth).