Ge\u00e7ti\u011fimiz g\u00fcnlerde Philae (robotik ini\u015f mod\u00fcl\u00fc), Rosetta\u2019dan (y\u00f6r\u00fcnge mod\u00fcl\u00fc) ayr\u0131ld\u0131 ve kuyrukluy\u0131ld\u0131z\u0131n y\u00fczeyine do\u011fru 6-7 saatlik yolculu\u011funa, 20 km kadar uzaktan ba\u015flad\u0131. 12 Kas\u0131m 2014 g\u00fcn\u00fc insanl\u0131k bir ilke imza att\u0131 ve bir kuyrukluy\u0131ld\u0131z y\u00fczeyine ba\u015far\u0131l\u0131 ilk ini\u015f ger\u00e7ekle\u015ftirildi.<\/p>\n
Philae yer\u00e7ekimi olduk\u00e7a zay\u0131f olan kuyrukluy\u0131ld\u0131zdan iki kere sekti, sonras\u0131nda y\u00fczeye oturmay\u0131 ba\u015fard\u0131. B\u00fct\u00fcn bu s\u00fcre\u00e7 d\u00fcnyadan \u0131\u015f\u0131k h\u0131z\u0131 limitinden kaynakl\u0131 olarak 30 dakika gecikmeli takip edildi. Takip edildi diyoruz, \u00e7\u00fcnk\u00fc ini\u015f tamamen Rosetta ve Philae \u00fczerinde bulunan bilgisayar sistemleri taraf\u0131ndan y\u00f6netildi.<\/p>\n
Biliminsanlar\u0131 b\u00fct\u00fcn olas\u0131l\u0131klar\u0131 g\u00f6z \u00f6n\u00fcnde bulundurmaya \u00e7al\u0131\u015farak, ini\u015f yaz\u0131l\u0131m\u0131n\u0131 Philae\u2019ye y\u00fcklediler ve son kontroller yap\u0131ld\u0131ktan sonra ini\u015f ba\u015flat\u0131ld\u0131. Projenin y\u00fcr\u00fct\u00fcc\u00fcs\u00fc Avrupa Uzay Ajans\u0131 (ESA) yetkilileri, bu i\u015fi insanl\u0131\u011f\u0131n ba\u015fard\u0131\u011f\u0131 en zor i\u015flerden biri olarak nitelendirdi. Yetkililer haks\u0131z da say\u0131lmaz. Bundan 10 y\u0131l \u00f6nce f\u0131rlat\u0131lm\u0131\u015f bir uzay arac\u0131n\u0131n varl\u0131\u011f\u0131, ileti\u015fimin 30 dakika kadar gecikmeli olmas\u0131, kuyrukluy\u0131ld\u0131z\u0131n geometrik yap\u0131s\u0131n\u0131n k\u00fcreden \u00e7ok farkl\u0131 olmas\u0131, \u00e7ekiminin olduk\u00e7a zay\u0131f olmas\u0131, tek enerji kayna\u011f\u0131n\u0131n G\u00fcne\u015f olmas\u0131 gibi detaylar d\u00fc\u015f\u00fcn\u00fcl\u00fcnce, i\u015fin zorlu\u011fu idrak edilebilir.<\/p>\n
Philae g\u00f6revini tamamlad\u0131<\/strong><\/p>\n \u0130ni\u015f mod\u00fcl\u00fc y\u00fczeye indikten yakla\u015f\u0131k 60 saat sonra t\u00fcm enerjisini yitirdi. \u00c7\u0131kan aksakl\u0131klar nedeniyle, Philae G\u00fcne\u015f \u0131\u015f\u0131nlar\u0131ndan yeterince yararlanamayaca\u011f\u0131 g\u00f6lge bir noktada kald\u0131. G\u00fcne\u015f panelleri yeterli elektrik enerjisi \u00fcretemedi\u011fi i\u00e7in yetkililer bir s\u00fcre Philae ile ileti\u015fim sa\u011flanamayaca\u011f\u0131n\u0131 \u00f6ng\u00f6r\u00fcyor. Philae i\u00e7in umutlar tamamen t\u00fckenmi\u015f de\u011fil. Kuyrukluy\u0131ld\u0131z G\u00fcne\u015f\u2019e daha yak\u0131n noktalardan ge\u00e7erken Philae tekrar uyanabilir.<\/p>\n ESA yetkililerinin a\u00e7\u0131klamas\u0131na g\u00f6re, Philae ini\u015f sonras\u0131nda \u00e7al\u0131\u015ft\u0131\u011f\u0131 60 saatlik s\u00fcre i\u00e7erisinde yapmas\u0131 gereken esas \u00e7al\u0131\u015fmalar\u0131 tamamlad\u0131 ve elde etti\u011fi bilgileri kuyrukluy\u0131ld\u0131z\u0131n y\u00f6r\u00fcngesinde bulunan Rosetta\u2019ya g\u00f6ndermeyi ba\u015fard\u0131. Elbette daha uzun \u00e7al\u0131\u015fabilse, b\u00fct\u00fcn incelemeler tekrar yap\u0131labilirdi ve b\u00f6ylece daha sa\u011fl\u0131kl\u0131 bilimsel veriler elde edilebilirdi.<\/p>\n Rosetta y\u00f6r\u00fcngede dolan\u0131rken, kuyrukluy\u0131ld\u0131z\u0131n i\u00e7inden ge\u00e7ecek \u015fekilde Philae\u2019ye ses dalgalar\u0131 g\u00f6nderdi ve bu dalgalar sayesinde kuyrukluy\u0131ld\u0131z\u0131n i\u00e7yap\u0131s\u0131 hakk\u0131nda veriler elde edilebildi.<\/p>\n Philae ini\u015f s\u0131ras\u0131nda ya\u015fanan sorun nedeniyle y\u00fczeye tutunmay\u0131 ba\u015faramad\u0131. Bu nedenle y\u00fczeyi delme ve madde inceleme i\u015flemi s\u0131ras\u0131nda bir sorun ya\u015fanm\u0131\u015f olabilece\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. Biliminsanlar\u0131 yer\u00e7ekimi olduk\u00e7a zay\u0131f oldu\u011fu i\u00e7in Philae\u2019nin y\u00fczeyi delmek yerine kendisini havaya kald\u0131rm\u0131\u015f olabilece\u011fini tahmin ediyor. \u0130ncelemesi yap\u0131lan toz par\u00e7alar\u0131n\u0131n y\u00fczeye \u00e7arpma esnas\u0131nda hazneye dolmu\u015f olabilece\u011fi de ihtimaller aras\u0131nda.<\/p>\n Rosetta herhangi bir aksilik ya\u015famadan y\u00f6r\u00fcngedeki incelemelerini s\u00fcrd\u00fcr\u00fcyor. Bundan sonraki en temel g\u00f6revler aras\u0131nda, kuyrukluy\u0131ld\u0131z\u0131n G\u00fcne\u015f\u2019e yakla\u015ft\u0131k\u00e7a olu\u015fan toz ve iyon kuyruklar\u0131n\u0131n incelenmesi de bulunuyor. Bir aksakl\u0131k olmamas\u0131 durumunda, projenin Aral\u0131k 2015\u2019e kadar devam etmesi planlan\u0131yor. \u00d6n\u00fcm\u00fczdeki g\u00fcnlerde kuyrukluy\u0131ld\u0131z\u0131n bu ke\u015ffinin \u00f6nemli sonu\u00e7lar\u0131na dair haberler almaya devam etmek kuvvetle muhtemel.\u00a0<\/strong><\/p>\n Kaynaklar:<\/strong><\/p>\n 1) http:\/\/blogs.esa.int\/rosetta\/<\/p>\n 2) http:\/\/www.esa.int\/Our_Activities\/Space_Science\/Rosetta<\/p>\n","protected":false},"excerpt":{"rendered":" Ge\u00e7ti\u011fimiz g\u00fcnlerde Philae (robotik ini\u015f mod\u00fcl\u00fc), Rosetta\u2019dan (y\u00f6r\u00fcnge mod\u00fcl\u00fc) ayr\u0131ld\u0131 ve kuyrukluy\u0131ld\u0131z\u0131n y\u00fczeyine do\u011fru 6-7 saatlik yolculu\u011funa, 20 km kadar uzaktan ba\u015flad\u0131. 12 Kas\u0131m 2014 g\u00fcn\u00fc insanl\u0131k bir ilke imza att\u0131 ve bir kuyrukluy\u0131ld\u0131z y\u00fczeyine ba\u015far\u0131l\u0131 ilk ini\u015f ger\u00e7ekle\u015ftirildi. Philae yer\u00e7ekimi olduk\u00e7a zay\u0131f olan kuyrukluy\u0131ld\u0131zdan iki kere sekti, sonras\u0131nda y\u00fczeye oturmay\u0131 ba\u015fard\u0131. B\u00fct\u00fcn bu s\u00fcre\u00e7 […]<\/p>\n","protected":false},"author":857,"featured_media":23727,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[167,30,19],"tags":[792,2327,392],"class_list":["post-12352","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-130-sayi","category-astronomi","category-bilim-gundemi","tag-kuyrukluyildiz","tag-rosetta","tag-uzay"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t