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OSCAR 3 flew on the NRL Composite 5 mission, which lofted an unprecedented<ref name="aa1965">{{cite web|url=https://history.nasa.gov/AAchronologies/1965.pdf|title=Aeronautics and Astronautics, 1965|publisher=NASA|access-date=January 2, 2019}}</ref> eight satellites on a single [[Thor-Agena|Thor Augmented Delta-Agena D]] rocket (including [[Poppy (satellite)|POPPY 4]], an [[ELINT|electronic signals intelligence]] (ELINT) surveillance package, [[GGSE-2]], [[GGSE-3]], [[Surcal 2B]], [[SECOR|SECOR 3]], [[SOLRAD 7B]], and [[Dodedcapole 1]]) on 9 March 1965 from [[Vandenberg Air Force Base Space Launch Complex 1|Vandenberg Air Force Base Space Launch Complex 1, Pad 2]].<ref name=nrl5>{{Cite web|url=https://planet4589.org/space/nro/poppy/NRLC5.html|title=Launch 1965-016: NRL Composite 5|last=McDowell|first=Jonathan|publisher=Jonathon's Space Report|access-date=March 1, 2020}}</ref><ref name=log>{{Cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|last=McDowell|first=Jonathan|access-date=2018-12-30}}</ref> |
OSCAR 3 flew on the NRL Composite 5 mission, which lofted an unprecedented<ref name="aa1965">{{cite web|url=https://history.nasa.gov/AAchronologies/1965.pdf|title=Aeronautics and Astronautics, 1965|publisher=NASA|access-date=January 2, 2019}}</ref> eight satellites on a single [[Thor-Agena|Thor Augmented Delta-Agena D]] rocket (including [[Poppy (satellite)|POPPY 4]], an [[ELINT|electronic signals intelligence]] (ELINT) surveillance package, [[GGSE-2]], [[GGSE-3]], [[Surcal 2B]], [[SECOR|SECOR 3]], [[SOLRAD 7B]], and [[Dodedcapole 1]]) on 9 March 1965 from [[Vandenberg Air Force Base Space Launch Complex 1|Vandenberg Air Force Base Space Launch Complex 1, Pad 2]].<ref name=nrl5>{{Cite web|url=https://planet4589.org/space/nro/poppy/NRLC5.html|title=Launch 1965-016: NRL Composite 5|last=McDowell|first=Jonathan|publisher=Jonathon's Space Report|access-date=March 1, 2020}}</ref><ref name=log>{{Cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|last=McDowell|first=Jonathan|access-date=2018-12-30}}</ref> |
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Though the satellite's active life was limited to sixteen days due to battery failure,<ref name="SP-133">{{cite book|author=[[William R. Corliss]]|title=Scientific Satellites|publisher=Science and Technical Information Division, Office of Technology Utilization, NASA|date=1967|location=Washington D.C.|pages=765|url=https://archive.org/details/scientificsatell00corl/page/765/mode/2up|access-date=11 May 2020}}</ref> OSCAR 3 relayed 176 messages from 98 stations in North America and Europe during its 274 orbit life-time.<ref name=report>{{cite magazine|magazine=QST|date=Dec 1965|pages= |
Though the satellite's active life was limited to sixteen days due to battery failure,<ref name="SP-133">{{cite book|author=[[William R. Corliss]]|title=Scientific Satellites|publisher=Science and Technical Information Division, Office of Technology Utilization, NASA|date=1967|location=Washington D.C.|pages=765|url=https://archive.org/details/scientificsatell00corl/page/765/mode/2up|access-date=11 May 2020}}</ref> OSCAR 3 relayed 176 messages from 98 stations in North America and Europe during its 274 orbit life-time.<ref name=report>{{cite magazine|magazine=QST|date=Dec 1965|pages=84-89|url=https://projectoscar.files.wordpress.com/2008/03/oscar_iii_results.pdf|title=OSCAR 3 Report -- Communications Results|author=H. C. Gabrielson|access-date=16 May 2021}}</ref> The two beacon transmitters continued operating for several months.<ref name="NASA Oscar 3">{{cite web |url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1965-016F |title=Oscar 3 |publisher=NASA National Space Science Data Center |date=30 June 1977 |access-date=15 February 2013}}</ref><ref>{{cite web |url=http://space.skyrocket.de/doc_sdat/oscar-3.htm |title=OSCAR 3|publisher=Gunter's Space Page |date=31 December 1999 |access-date=15 February 2013 }}</ref> OSCAR 3 was thus the first amateur communications satellite to relay voice contacts in the [[VHF]] 2 meter band, the first amateur satellite to operate from solar power and relay signals from Earth, and the first satellite to use beacon transmitters separate from the main communications system.<ref name=amsat>{{cite web |url=http://www.amsat.org/amsat-new/AboutAmsat/amsat_history.php |title=Space Satellites from the World's Garage -- The Story of AMSAT |last1=Baker |first1=Keith |last2=Jansson |first2=Dick |date=23 May 1994 |access-date=15 February 2013 |url-status=dead |archive-url=https://web.archive.org/web/20061005160332/http://www.amsat.org/amsat-new/AboutAmsat/amsat_history.php |archive-date=5 October 2006 }}</ref> |
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{{As of|2023}}, OSCAR 3 is still in orbit, and its position can be tracked online.<ref name=n2yo>{{cite web|url=https://www.n2yo.com/satellite/?s=1293|title=OSCAR 3|access-date=16 May 2021}}</ref> |
{{As of|2023}}, OSCAR 3 is still in orbit, and its position can be tracked online.<ref name=n2yo>{{cite web|url=https://www.n2yo.com/satellite/?s=1293|title=OSCAR 3|access-date=16 May 2021}}</ref> |
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