I-European Space Agency ithuthukisa i-algorithm yayo yokubikezela izinguquko ekushintsheni komhlaba. Le mininingwane ibaluleke kakhulu ekuqalisweni ngempumelelo kwezinhlelo ezahlukahlukene zesikhala. Ukuhlolwa kusenesikhathi kwe-algorithm entsha kukhombisa ukuthi isebenza kahle kwithuluzi elisebenza manje. Iphrojekthi iyisinyathelo esibalulekile sokuqinisekisa ukufinyelela okuzimele kweYurophu esikhaleni.
Ukwabiwa kabusha kwesisindo seplanethi yethu kwenzeka njalo ngenxa yezici ezahlukahlukene, ezinjengezinguquko emkhathini womhlaba, ezihamba futhi zixubana namanzi olwandle, ezinye izidumbu zamanzi, njll. Ngenxa yalokho, okuthinta izinguquko ezidonsela phansi, ezithinta Ijubane lokujikeleza kweplanethi, futhi ngasikhathi sinye isikhathi sosuku, i-axis yokujikeleza yokujikeleza.
Zonke izinguquko ezingenhla zenzeka ezikhathini ezimfushane zesikhathi - izinsuku namasonto. Abantu abasemhlabeni abulimazi ukulimala futhi bahlale benganakwa. Ngasikhathi sinye, ushintsho olunjalo lungaphazamisa ubudlelwano phakathi kweziteshi zomhlaba kanye nemishini, ezenziwa emzimbeni we-Orpt Orbit nangaphakathi kohlelo lwelanga.
Impumelelo ye-ESA cosmic ohambweni (njengawo wonke umuntu), ngokuqondile kuncike emaphangeni okuqala komhlaba, ukushintshwa kweplanethi yethu. Ngokusho kukaVerner Ederle, inhloko ye-ESA Navigation Support (Darmstadt, eJalimane), imikhumbi yesikhala isuswa yizigidi zamakhilomitha eziteshini zomhlaba. Ngasikhathi sinye, ukuholwa okunembe kakhulu kuzo kuyadingeka, njengoba ama-degree angu-1 emhlabeni yizinkulungwane zamakhilomitha esikhaleni esingaphandle.
Ukubikezela ukuqondiswa komhlaba emavikini nasezinyangeni ezizayo, ukuhlaziywa kobuningi bezinto kuyadingeka: izimo zesimo sezulu, ukuguquka kwesimo sezulu, umsebenzi wemvelo, obonakalayo we-US Naval Isebenzisa idatha eqoqwe emhlabeni wonke.
Ithuluzi elithuthukisa i-ESA libikezela ukujikeleza komhlaba ngezinsuku ezingama-90 ngaphambi kosizo lwe-Global Naser RangeFinder, njll.
I-Paris Observatory inensizakalo yokujikeleza komhlaba wonke yomhlaba, esebenza ngokukhethekile kumapharamitha wokujikeleza kanye neplanethi izixhumanisi. Ochwepheshe bathola ukuthi ngo-2020 umhlaba wajikeleza ngokushesha okungajwayelekile. Ngakho-ke, ngonyaka owedlule, izinsuku ezingama-28 ezifushane kuwo wonke umlando wokubukwa kwaqoshwa.
Isikhungo sibheka ngokucophelela amawashi a-athomu, ngesisekelo isikhathi se-athomu samazwe aphesheya esinqunywa. Uma lesi sikhathi siphambuka kwizikhathi ezingaphezu kuka-0.4 s, ubufakazi be-athomu ye-athomu bulungiswa. Kusukela ama-60s, lapho iwashi lisebenza, kwadingeka ukuthi zilungiswe cishe kanye eminyakeni eyi-1.5, engeza umzuzwana owodwa.
Ngakho kwenzeka kuze kube ngu-2016, ngoba umhlaba wawuhamba kancane ngalesi sikhathi. Usuku lwezinkanyezi kulo nyaka luzoba ngu-0,05 ms ngamafuphi. NgoJulayi 19 2020 Umhlaba esikhundleni sika-86400 C waphenduka ama-1,4602 ms ngokushesha.
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