Europa Clipper hat seine Solaranlagen, den Magnetometerboom und jetzt die Antennen für sein Eisradarinstrument aufgestellt

From the article: The satellite is 13 million miles from Earth and will reach Mars in three months for its first gravity assist on its journey to Europa. Arrival in the Jovian system is scheduled for 2030 with 49 Europa flybys starting in 2031.

>A SpaceX Falcon Heavy rocket launched it away from Earth’s gravity, and now the spacecraft is zooming along at 22 miles per second (35 kilometers per second) relative to the Sun.

What does it mean that a spacecraft moving along a path essentially parallel to the earths orbit (slight outward tilt) is moving 22 miles per second “”relative to the sun””? Does that mean that the outward component of its velocity vector (away from the sun) is 22 mps? Or is this simply saying its vector along its orbit around the sun is 22 mps?