Orbit is actually slightly elliptical
Aphelion
152,100,000 km
105,444 km/h
Perihelion
147,100,000 km
109,044 km/h
Difference
5,00,000 km
5,00,000 km
3.3%
3600 km/h
30.29 km/s or 109,044 km/h
3.4%
