
@Nancy Did you see this series that NHK Listener uncovered? www.flickr.com

news.discovery.com @Nancy I believe the daily thermals are from a Global Hawk... The Global Hawk is an autonomous, jet-powered UAV with a sensor package that includes synthetic-aperture radar as well as electro-optical and infrared sensors with telescopic capability for high-resolution imagery.
The infrared sensors, which can detect heat, may be able to acquire images of the reactors showing which parts of them are at what temperatures, and repeated observations could provide critical data about the effectiveness of different attempts at cooling the reactor vessels and spent fuel pools. news.discovery.com

apture.s3.amazonaws.com @NHK Listener The Global Hawk is indeed one high tech bird.