JPL Horizons is awesome for this. You can easily obtain the information on your own using the ephemerides at https://ssd.jpl.nasa.gov/horizons.cgi#top :

- minimum distance of 71350 km (44,334 miles vs 45,360 in article)

- Speed around 24.5 km/s (15.2 miles/sec vs 15 in article)

- Closest on july 25 at 01:21 UTC

Here's a rendering of the trajectory of the asteroid and the moon in july to get an idea of how close it came (moon orbits around 384,000 km from earth): https://imgur.com/a/3JaakFJ