Dayax noocee ah oo Saturn ah ayuu Pioneer 11 helay oo sawir ka qaaday?
Context:Waqtigaas, Voyager 1 iyo Voyager 2 waxay horey u soo mareen Jupiter waxayna sidoo kale ku sii jeedeen Saturn, sidaa darteed waxaa la go'aamiyay in Pioneer 11 lagu bartilmaameedsado si uu ugu gudbo garoonka Saturn ring isla booska ay baaritaannada Voyager ee dhowaan imaan doonta u isticmaali doonaan si loo tijaabiyo wadada ka hor inta aysan Voyagers imaan. Hadii ay jiri laheyd walxo yaryar oo waxyeelo u geysan kara dayax gacmeed ku yaalla aaggaas, qorshayaasha howlgalka waxay dareemeen in ay ka fiicnaan laheyd in ay ka ogaadaan iyada oo loo marayo Pioneer. Sidaa darteed, Pioneer 11 wuxuu u dhaqmay sidii "hormuud" dareenka dhabta ah ee ereyga; haddii khatar la ogaado, markaa baadhayaasha Voyager ayaa dib loo celin karaa oo ka sii fogaan kara siddooyinka, laakiin waxay luminayaan fursadda ay ku booqanayaan Uranus iyo Neptune hawsha.  Pioneer 11 ayaa sawiray oo ku dhowaaday inuu isku dhaco mid ka mid ah dayaxyada yaryar ee Saturn, isaga oo dhaafay masaafo aan ka badnayn 4,000 kiiloomitir (2,500 mi). Waxyaabaha la helay waxaa loo aqoonsaday Epimetheus, dayax laga helay maalintii hore sawirada Pioneer, waxaana laga shakiyay aragtiyo hore oo ay sameeyeen telescopes-ka dhulka ku saleysan. Kadib duullimaadyadii Voyager, waxaa la ogaaday inay jiraan laba dayax oo cabirkoodu isku mid yahay (Epimetheus iyo Janus) oo isku waddo isku mid ah, sidaa darteed waxaa jira xoogaa hubin la'aan ah oo ku saabsan midka Pioneer ku dhawaaday. Pioneer 11 waxay la kulantay Janus 1dii Sebtember, 1979 markay ahayd 14:52 UTC masaafo dhan 2500 km iyo Mimas 16:20 UTC isla maalintaas oo ah 103000 km.  Marka laga soo tago Epimetheus, qalabku wuxuu helay dayax kale oo yar oo aan horay loo arag iyo giraan dheeri ah, waxay ku sameeyeen khariidada Saturn magnetosphere iyo magnetic field waxayna ogaadeen in dayaxdeeda sida meeraha oo kale ah, Titan, ay tahay mid aad u qabow nolosha. Mashiinka dayax gacmeedka ayaa sawirada Saturn ka soo diray. Giraanta, oo sida caadiga ah u muuqda mid dhalaalaya marka laga eego dhulka, waxay u muuqdeen kuwo mugdi ah sawirada Pioneer, iyo meelaha mugdiga ah ee giraanta ee laga arkay dhulka waxay u muuqdeen sida giraanno dhalaalaya.
* Epimetheus Janus * * Mimas * Titan *