These two asteroids have similar orbits:
(356713) 2010 GS25
Mean motion uncertainty a little less than 10^-8 deg/day
I wonder if these two asteroids originated from a common parent body about 10Kyears ago.
Using the Mercury simulator by John Chambers on the nominal parameters, we have this result:
Distance = 0.0000232 (AU) about 3500 km
Relative Velocity = 7.270e-08 (AU/Day) about 12 cm/s