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QUICK NOTES ABOUT HDEV VIDEO :
Black Image = International Space Station ( ISS ) is on the night side of the Earth .
No Audio = Normal . There is no audio by design . Add a soundtrack .
For a display of the real time ISS location plus the HDEV imagery visit here .
The High Definition Earth Viewing ( HDEV ) experiment aboard the ISS was activated April 30 2014 . 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 on this channel .
While the experiment is operational , views will typically sequence though the different cameras . Between camera switches , a gray and then black color slate will briefly appear . Since the ISS is in darkness during part of each orbit , the images will be dark at those times . During periods of loss of signal with the ground or when HDEV is not operating , a gray color slate or previously recorded video may be seen .
SOURCE | SATYAVEDISM.ORG