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Definitions Edit

Internet Edit

A footprint is

an electronic signature that identifies you as a unique identity on the Internet during your current session. Most Internet Service Providers (ISPs) now issue a new signature to you each time you log on to surf. But whilst you are surfing during a session after log on, every site you visit retains your electronic signature.[1]

Telecommunications Edit

The footprint is

[t]he area on the surface of the earth within a satellite's transmitter or sensor field of view.[2]
[t]he area of the earth's surface, which is covered by a satellite's antenna. The size and shape of this area is determined by the altitude of the satellite and the width and shape of the satellite's beam. The footprint is also known as the Cone of Earth View.[3]

References Edit

  1. NATO Open Source Intelligence Handbook, at 28.
  2. U.S. Department of Defense, Joint Pub. 1–02: DOD Dictionary of Military and Associated Terms (Nov. 8, 2010, as amended through May 15, 2011) (full-text).
  3. Glossary of Communications-Electronics Terms, at 2-70.

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