……………………..Limits are for governments.

near-Earth asteroid

Upcoming Earth-Asteroid Encounter – .4 Lunar Distance

This is going to be close. There will likely be a very large explosion or electrical response from the earth when this goes by. Both the previous low solar activity, and the sudden X-flares from the sun, will make this an electrical transaction between the charged earth and the charged asteroid.

Recent & Upcoming Earth-asteroid encounters:
2014 UF56  Oct 27  0.4 LD  15 m

At the very least, we should be experiencing something like this:

via spaceweather.com “Valentine’s Day in Scandinavia began with a magnetic storm. Rob Stammes of the Polar Light Center in Lofoten, Norway, reports: “Our instruments recorded 2o swings in the local magnetic field, which induced strong electrical currents in the ground outside our lab.” The needles on his chart recorder were swinging wildly. “Overhead we saw some fantastic auroras,” he adds.”

Examples of electrical explosions and arcing between bodies in space:

Footage from the Siding Spring encounter with Mars showed an exceedingly bright flash.

Flash from projectile hitting Temple 1

The near earth asteroid of February 14, 2013 was also highly energetic according to many.

Shoemaker Levy broke apart and struck Jupiter with many flashes of extraordinary intensity.

From The Virtual Telescope:

I believe this could leave a mark, based on the recent Mars encounter.