Visualization of the Sun-Earth Lagrange points. Orbital mechanics is a fun ... The OSIRIS-REx and Hayabusa 2 spacecraft have passed through or near one of these points during their missions.
The Lagrangian equilibrium stability points ... Today, all bodies located at the L 4 or L 5 points of any orbiting body are known as Trojans. Astronomers have so far only found two Earth-Sun Trojans, ...
While it's unclear what exactly "sub-L1" means in this context, a typical sun/Earth Lagrange point is about 1.5 million km toward the sun—about four times as far away as the moon is from Earth.