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  2. Star tracker - Wikipedia

    en.wikipedia.org/wiki/Star_tracker

    The STARS real-time star tracking software operates on an image from EBEX 2012, a high-altitude balloon-borne cosmology experiment launched from Antarctica on 2012-12-29. A star tracker is an optical device that measures the positions of stars using photocells or a camera. [1]

  3. Spacecraft attitude determination and control - Wikipedia

    en.wikipedia.org/wiki/Spacecraft_attitude...

    The STARS real-time star tracking software operates on an image from EBEX 2012, a high-altitude balloon-borne cosmology experiment launched from Antarctica on 2012-12-29. A star tracker is an optical device that measures the position(s) of star(s) using photocell(s) or a camera. [14]

  4. StarChase - Wikipedia

    en.wikipedia.org/wiki/StarChase

    StarChase is a company that produces GPS tracking devices of the same name, for law enforcement purposes. Developed from early 2006, the less-than-lethal vehicle tagging system tags, tracks, and locates a fleeing vehicle. [1] The system was developed to reduce the need for an inherent danger of high speed pursuits [broken anchor]. [1]

  5. United States Space Surveillance Network - Wikipedia

    en.wikipedia.org/wiki/United_States_Space...

    As with any ground-based optical system, cloud cover and local weather conditions directly influence its effectiveness. GEODSS system can track objects as small as a basketball more than 20,000 miles (30,000 km) in space or a chair at 35,000 miles (56,000 km), and is a vital part of USSPACECOM's Space Surveillance Network.

  6. Space Detection and Tracking System - Wikipedia

    en.wikipedia.org/wiki/Space_Detection_and...

    Space Detection and Tracking System, or SPADATS, was built in 1960 to integrate defense systems built by different branches of the United States Armed Forces and was placed under North American Aerospace Defense Command (NORAD). The Air Force had a program called Spacetrack, which was a network of space-probing cameras and radar.

  7. Barn door tracker - Wikipedia

    en.wikipedia.org/wiki/Barn_door_tracker

    The barn door tracker was created by George Haig. His plans were first published in Sky & Telescope magazine in April 1975. Modified versions of the tracker were published in the magazine's February 1988 and June 2007 editions.

  8. AOL Mail

    mail.aol.com/d?reason=invalid_cred

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Celestial navigation - Wikipedia

    en.wikipedia.org/wiki/Celestial_navigation

    A diagram of a typical nautical sextant, a tool used in celestial navigation to measure the angle between two objects viewed by means of its optical sight. Celestial navigation, also known as astronavigation, is the practice of position fixing using stars and other celestial bodies that enables a navigator to accurately determine their actual current physical position in space or on the ...