Hayabusa 2 is the second asteroid sample-return mission operated by JAXA which launched on 2014-Dec-3 on a four-year cruise to the asteroid 162173 Ryugu. After returning samples to Earth, its mission was extended to include a flyby of the asteroid (98943) 2001 CC21 on 2026-Jul-4, and rendezvous and orbital insertion to the asteroid 1998 KY26 on 2031-July.
This addon only contains updated XYZV trajectory files for the spacecraft that covers its entire prime mission (2014 to 2019) as well as the planned extended mission from 2019 to 2031 which is available on HORIZONS.
XYZV updates to asteroids Ryugu, 1998 KY26, and 2001 CC21 are also included. Two versions of SSC files for the last two asteroids are included for standard and Celestia Origin usersIMPORTANT NOTE
: Download first the model and textures by toutatis here
- Trajectory for the Ryugu phase (2018-2019) is centered around Sol, as the Ryugu-centric orbit of Hayabusa 2 simply does not exist on HORIZONS, therefore the actual sample return maneuvers of April and July 2019 cannot be simulated in high accuracy
- The two gravity-assist flybys of Earth on 2027 and 2028 contain erroneous data which causes the spacecraft to approach Earth inside the core (-6,300 km)
- HORIZONS data ends shortly a month before arrival on 1998 KY26, so as a consequence this isn't simulated, but the last coded data indicates Hayabusa 2 will still co-orbit the said asteroid for many decades to come