For a very ballpark estimate, this impactor would have been comparable to the Tunguska event, where the effects are quite well documented. It's impossible to know the size of that impactor with accuracy but the estimate is fairly similar, about 50-190 meters across.
The Tunguska impactor didn't leave a crater in the ground. It's damage to the ground came from an air-burst, which still flatted a blast area about 30 miles across (15 mile radius) and the Tunguska shockwave is estimated to have caused the equivalent of a 5.0 Earthquake on the Richter scale.
As a sidebar, most of the injuries from the much more recent (and caught on film), Chelyabinsk meteor impact were from people looking out their window after the impact and the shockwave blew the windows into their faces. (Not fun), so meteor safety 101 - you can watch it fly through the sky, though the flash may be bright enough to hurt your eyes, so maybe film but don't watch if it's a big one, but after you've seen it, find cover and step away from anywhere that a window can blast into you.
Meteor impacts can vary significantly, based on the material the meteor is made of, the velocity and even the angle of impact, so Tunguska is a ballpark estimate with perhaps as much as an order of magnitude error, but it's not too far off.
I read somewhere that Tunguska events are expected to happen about once every 300 years, so near misses the size of 2019 OK and distance, 45,000 miles or less, a little math puts events like that about once every 2-3 years. If this was golf and the meteor was a Tiger Woods putt, the putted ball would have passed by the hole never getting any closer than about 2 feet. That's kinda close, I suppose, but hardly a graze. I look forward to the next big meteor that flies past just a few thousand miles from our surface, perhaps even viewable to the naked eye, still a miss, but a closer miss. Events that close are much more rare. But, I digress.