A strange orb filmed over Carlow, Ireland

On 3rd February 2014, a man, named Martyn Curran, has recorded an unidentified bright and white light above Carlow, Ireland.

This strange UFO seemed swirl chaotically. What is it?

Witness report:

I've recorded a video today at about 5.10 uk time it's very strange.

A light in the sky it couldn't have been a plane or a chopper it was moving very unorthodox and it was even disappearing and reappearing.