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Questions tagged [space-surveillance]

The use of sensors to detect, identify, and characterize space-borne objects.

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Has direct bandgap photoemission from III-V solar panels on spacecraft ever been detected or reported?

I thought I had asked this question before, but I can't find it now so I will ask here. I have asked a related question in Physics SE: Do III-V based photovoltaics “glow” (photo-luminesce) when ...
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Is the Hollywood “Enemy of the State” satellite at all based on a real satellite?

The page on the model maker Asylum FX's website shows some stills of a model used in the production of the movie Enemy of the State. We fabricated a 15ft long satellite model for motion control ...
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What are “Tundra missiles” and why are they so hard to detect?

As mentioned in The Pod Bay Nasa Spaceflight has written: Soyuz 2-1B launches Tundra missile detection spacecraft. What are Tundra missiles, and why are they so hard to detect that there would have ...
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Are Sun-Earth Lagrange points SEL1 and SEL2 useful for communication and space surveillance?

SEL1 and SEL2 are about 0.01 AU away, 10 seconds light travel time back and forth, 4 times Lunar distance, 45 times the distance to GEO. From those two regions combined, all surface on Earth and the ...
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How will the Air Force decision to discontinue the space fence due to sequestration affect contractors?

Recently, Air Force Space Command indicated that the space fence will be discontinued on October 1.[source] Due to resource constraints caused by sequestration, Air Force Space Command officials ...
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What existing technologies record data on meteors?

As per the title, I'm curious about technologies that would detect previously unknown objects like the Chelyabinsk Meteor as they enter the atmosphere. An answer that could satisfy some or all of the ...