It is mounted on the External Payload Facility of the European Space Agency’s Columbus module. This experiment includes several commercial HD video cameras aimed at the earth which are enclosed in a pressurized and temperature controlled housing.
Video from these cameras is transmitted back to earth and also streamed live.
While the experiment is operational, views will typically sequence though the different cameras.
Black Scenes = Night side of the Earth.
Gray Scenes = Switching to the next camera, or the communications downlink from the ISS in not available at the moment.
The live video feed from HDEV will occasionally be unavailable due to loss of signal with the ground. During periods of loss of signal a gray color slate or previously recorded video may be seen. Recommended to check the site again approximately 30 minutes
Watch Live -visit here: http://www.ustream.tv/channel/iss-hdev-payload
For a display of the real time ISS location plus the HDEV imagery, visit here: http://eol.jsc.nasa.gov/HDEV/
ISSTracker - visit here: http://www.isstracker.com/