For an interplanetary mission design problem, I am using the JPL Horizons Ephermeris to obtain the state vectors of Venus and Earth. I have selected the Coordinate origin as the body centre of the Sun. But in the ephemeris table, it is showing reference frame as ICRF and Coordinate system as Mean equinox and Ecliptic of Reference Epoch.
Can someone help me to understand the ephemeris table/how can I know actually from which frame the state vectors are being measured? For reference, I am attaching the text document.JPL Ephemeris for Venus