| 词条 | Space Detection and Tracking System |
| 释义 |
SPADATS was developed by the SpaceTrack Research and Development Facility, also called the 496L System Program Office, at Hanscom Field in Bedford, Massachusetts.{{r|Weeden}} (Bendix, Sperry Rand and Hughes competed for SPADATS contract in the early 1962 on the basis of their prior experience in phased array technology.[2]) It first operated at the Electronic Systems Command building at Hanscom and in 1963 was transferred to the Ent Air Force Base{{r|Weeden}} and then to the Cheyenne Mountain Complex in 1965[3] or 1966.{{r|Weeden p. 4}} From that point, the SpaceTrack Research and Development Facility continued to build and test new software, manage contracts for hardware and software, and operate as a backup facility.[4] SPADATS was developed in assembly language and the hardware at all three locations was Philco 2000/Model 212 large scale transistor computers.[5] Spiral Decay, a Special Perturbation Program, was used to model the motion of space objects re-entering the Earth's atmosphere. Project 437 used a second Special Perturbation Program called ESPOD.{{r|Weeden p. 4}} SPADATS remained operational until about 1980 at Cheyenne Mountain. Some of its logic, though continued on in Space Defense Operations Center (SPADOC) systems.{{r|Weeden p. 4}} References1. ^{{cite book|author=Elinor C. Sloan|title=Security and Defence in the Terrorist Era|url=https://books.google.com/books?id=evldtppA72AC&pg=PA194|date=28 October 2005|publisher=McGill-Queen's Press - MQUP|isbn=978-0-7735-7320-8|page=194}} 2. ^Aviation Week and Space Technology, March 19, 1962, 76(12):23. 3. ^{{cite web | url=http://www.norad.mil/Portals/29/Documents/History/A%20Brief%20History%20of%20NORAD.pdf | title=A Brief History of NORAD | publisher=NORAD | date=December 21, 2012 | author=Office of History, North American Aerospace Defense Command | accessdate=February 23, 2015 | deadurl=yes | archiveurl=https://web.archive.org/web/20150420161330/http://www.norad.mil/Portals/29/Documents/History/A%20Brief%20History%20of%20NORAD.pdf | archivedate=April 20, 2015 | df= }} 4. ^{{cite web | url=http://swfound.org/media/15742/computer%20systems%20and%20algorithms%20for%20space%20situational%20awareness%20-%20history%20and%20future%20development.pdf | title=Computer Systems and Algorithms for Space Situational Awareness: History and Future Development | author=Brian C. Weeden and Paul J. Cefola |work=ISCOPS 12th International Conference of Pacific-Basin Societies | publisher=Advances in the Astronautical Sciences | via=Secure World Foundation | date=December 1, 2010 | volume=138 |pages=3–4 | accessdate=February 23, 2015}} 5. ^{{cite web | url=http://swfound.org/media/15742/computer%20systems%20and%20algorithms%20for%20space%20situational%20awareness%20-%20history%20and%20future%20development.pdf | title=Computer Systems and Algorithms for Space Situational Awareness: History and Future Development | author=Brian C. Weeden and Paul J. Cefola |work=ISCOPS 12th International Conference of Pacific-Basin Societies | publisher=Advances in the Astronautical Sciences | via=Secure World Foundation | date=December 1, 2010 | volume=138 |pages=3–4 | accessdate=February 23, 2015}} 2 : NORAD systems|Earth stations in the United States |
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