From the linked paper:

>the suggestive correlation with terrestrial time standards seems to nearly clinch the case for human association of these peculiar phenomena

More from this author:

http://www.ibtimes.co.uk/earth-sized-ufo-spotted-nasa-images...

http://www.ibtimes.co.uk/ufo-hunter-believes-nasa-cut-off-li...

http://www.ibtimes.co.uk/nasa-secretly-contact-aliens-allege...