Pioneer 11: Verskil tussen weergawes

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Lyn 166:
Teen 1995 kon Pioneer 11 nie meer krag aan al die detektors lewer nie en die besluit is geneem om hulle af te skakel.<ref name="Farewell">{{cite news|title=Farewell to a Pioneer|work=Science News|date=October 14, 1995}}</ref> Op 29 September 1995 het NASA se Ames Navorsingsentrum, hulle was verantwoordelik om die projek te bestuur, 'n pers verklaring uitgereik wat soos volg begin het: "After nearly 22 years of exploration out to the farthest reaches of the Solar System, one of the most durable and productive space missions in history will come to a close."
 
Die verklaring het aangedui dat NASA hul diepruimte netwerk antennes sal gebruik om een of twee keer per maand te probeer om kontak met die ruimtetuig te maak tot iewers in 1996 wanneer sy sender heeltemal stil sal raak. Die NASA administrateur, Daniel Goldin, het Pioneer 11 so opgesom: "the little spacecraft that could, a venerable explorer that has taught us a great deal about the Solar System and, in the end, about our own innate drive to learn. ''Pioneer 11'' is what NASA is all about – exploration beyond the frontier."<ref name=Ames_Release_95-163>{{cite web|url=http://nssdc.gsfc.nasa.gov/planetary/text/pioneer-11_endops.txt|title=Pioneer 11 to End Operations after Epic Career|publisher= NASA / Ames Research Center|date=September 29, 1995|accessdate=August 7, 2011}}</ref> Behalwe die perverklaring het NASA ook 'n historiese lys beskikbaar gestel van al Pioneer 11 se mylpale wat behaal is tydens die sending. NASA het roetine kontaksessies met die ruimtetuig op 30 September 1995 beëindig maar voortgegaan om kontak te maak vir twee ure elke twee na vier weke.<ref name="Farewell"/> Die Wetenskaplikes het op 24 November 1995 'n paar minute se goeie ingenieurs datdata van die ruimtetuig ontvang maar toe finaal kontak verloor toe die aarde uit die antenne se gesigsveld verdwyn het.<ref name="InDepth"/> In 2002 het die sein te swak geword en kon ninie emeetmeer gehoor word nie.<ref>{{cite web|last1=Howell|first1=Elizabeth|title=Pioneer 11: Up Close with Jupiter & Saturn|url=https://www.space.com/17785-pioneer-11.html|website=Space.com|accessdate=December 10, 2017}}</ref>
 
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NASA Administrator [[Daniel Goldin]] characterized ''Pioneer 11'' as "the little spacecraft that could, a venerable explorer that has taught us a great deal about the Solar System and, in the end, about our own innate drive to learn. ''Pioneer 11'' is what NASA is all about – exploration beyond the frontier."<ref name=Ames_Release_95-163>{{cite web|url=http://nssdc.gsfc.nasa.gov/planetary/text/pioneer-11_endops.txt|title=Pioneer 11 to End Operations after Epic Career|publisher= NASA / Ames Research Center|date=September 29, 1995|accessdate=August 7, 2011}}</ref> Besides announcing the end of operations, the dispatch provided a historical list of ''Pioneer 11'' mission achievements. NASA terminated routine contact with the spacecraft on September 30, 1995, but continued to make contact for about 2 hours every 2 to 4 weeks.<ref name="Farewell"/> Scientists received a few minutes of good engineering data on November 24, 1995 but then lost final contact once Earth moved out of view of the spacecraft's antenna.<ref name="InDepth"/> Its signal became too faint to hear in 2002.<ref>{{cite web|last1=Howell|first1=Elizabeth|title=Pioneer 11: Up Close with Jupiter & Saturn|url=https://www.space.com/17785-pioneer-11.html|website=Space.com|accessdate=December 10, 2017}}</ref>
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== Nota ==