The long-awaited flyby of the massive asteroid 2012 DA14 on Friday morning won't be visible overhead in California, due to bright sunlight.

But commentary, real-time imagery and a telescopic view of the asteroid can all be seen by computer.

A half-hour commentary broadcast from NASA's Jet Propulsion Laboratory in Pasadena will be available online starting at 11 a.m. PST via NASA TV and streamed live online at http://www.nasa.gov/ntv and http://www.ustream.tv/nasajpl2.

Near real-time imagery of the asteroid's flyby before and after its closest approach -- made available to NASA by astronomers in the dark skies of Australia

This image provided by NASA/JPL-Caltech shows a simulation of asteroid 2012 DA14 approaching from the south as it passes through the Earth-moon system on Feb. 15, 2013. The 150-foot object will pass within 17,000 miles of the Earth. NASA scientists insist there is absolutely no chance of a collision as it passes. (AP Photo/NASA/JPL-Caltech)

A Ustream feed of the flyby from a telescope at NASA's Marshall Space Flight Center in Huntsville, Ala., will be streamed for three hours starting at 6 p.m. PST. To view the feed and ask researchers questions about the flyby via Twitter, visit: http://www.ustream.tv/channel/nasa-msfc.

It will be the nearest recorded brush with a such a large space rock, which is estimated to be the size of a 15-story office building.

Satellite operators are monitoring the asteroid

There is no chance of impact with Earth -- at its closest, it will pass about 17,000 miles above us.

Contact Lisa M. Krieger at 650-492-4098.