Solar Orbiter Ephemeris Data
Solar Orbiter SPICE Kernels
The latest public SPICE Kernels for Solar Orbiter are available via the ESA SPICE Service here: https://www.cosmos.esa.int/web/spice/solar-orbiter
Solar Orbiter data are also available in the ESA WebGeocalc instance here: https://www.cosmos.esa.int/web/spice/webgeocalc
Useful Links: SPICE homepage at NAIF/JPL: http://naif.jpl.nasa.gov/naif/
SPICE python toolkit: https://spiceypy.readthedocs.io/en/main/