Animation of Rosetta’s final trajectory in the last 10 days of its mission at Comet 67P/Churyumov–Gerasimenko.
On 24 September 2016, Rosetta will leave a close flyover orbit and transfer into the start of a 16 x 23 km orbit that will be used to prepare and line up for the final descent. In the evening of 29 September (20:50 GMT) Rosetta will manoeuvre onto a collision course with the comet, beginning the descent from an altitude of 19 km. The spacecraft will fall freely, without further manoeuvres, collecting scientific data during the descent.
The trajectory shown in this animation is created from real data provided in the last month, but may not necessarily follow the exact distance/time details because of natural deviations in the trajectory associated with the comet’s gravity and outgassing.