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Live From Earth

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The cameras are live in a temperature specific housing and are exposed to the harsh radiation of space. The video imagery is encoded from an Ethernet compatible format for transmission to the ground and further distribution. In this format, the video can be viewed from any computer connected to the internet. The Enclosure contains dry nitrogen at Atmospheric pressure. Ground operators have the choice to change the cycle of the images noted in the auto-cycle mode either changing which cameras that are powered on, or changing the length of time they are powered onor, if desired, ground controllers can command a single camera to remain powered on and no auto-cycle to take place. The video image analysis over time will earth how well each of the earth systems hold up in the space environment. Using off-the-shelf products is often more cost-effective than designing new ones for space applications. Ground tests have shown that these cameras could survive the simulated space environment, but actual exposure to low-Earth orbit proves how durable and well they work in the extremely harsh conditions of space. Earth Applications This investigation conducts Earth observations using live definition video which provides broad area or panoramic views of how the Earth looks from the International Space Station. Students have helped to design some of the cameras' components, and the public can view the camera feeds streaming live online. Power and periodic video downlink from power on is required. Individual cameras are powered on and off automatically or as required to attain video data. To date, more than 1000 students and 70 teachers have been directly involved in this investigation alone. Lessons have also aired on television and radio, and visits to the website have reached more than 11,000 students. -
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