Ngokusho kwezibikezeli, i-asteroid izoba nobubanzi bamamitha ayi-914, futhi ububanzi busuka kumamitha angama-440 kuye kwangama-680. Igama lakhe - 2001 FO32 - Izinkomo zenhlonipho yohlelo lokucwaninga uLincoln eduze nocwaningo lwe-LincOln eduze (olulayini) lapho izazi zezinkanyezi zavula khona i-asteroid.
Umzimba wasezulwini uzodlula emhlabeni ngasekupheleni kukaMashi. Ijubane layo lizoba ngamakhilomitha ayizinkulungwane eziyishumi nanhlanu ngehora. Lokhu kuphakeme kunesivinini lapho ama-asteroid amaningi endiza. Isizathu sokuhlunga okunjalo okusheshayo kungukujikeleza okungajwayelekile kwale nto yezinkanyezi. Igcotshwa ngama-39 degrees endizeni yomjikelezo womhlaba.
U-2001 FO32 usondela kwiplanethi ukuze ibanga elingamakhilomitha angaba yizigidi ezimbili. Kuphindwe kahlanu ngaphezu kwebanga ukuya enyangeni. Esikalini sezinkanyezi, kuncane, ngakho-ke u-FO32 wahlukaniswa ngokuthi "i-asteroid engaba yingozi". Kodwa-ke, akukho kusongelwa kokushayisana kwakhe nomhlaba. "Sithole i-asteroid eminyakeni edlule futhi safunda kahle i-trajectory ye-orvits yakhe ezungeze ilanga," kungezwa uPawulu Chodas, umqondisi wesikhungo ngokufunda into eseduze nomhlaba.
"Ukuhlangana" Mashi 21 kuzonikeza izazi zezinkanyezi ithuba lokuthola umbono oqondile wosayizi we-asteroid ne-Alledo yayo. Futhi sazi futhi ukwakheka okulinganiselwayo. Ikakhulu, ukutadisha ukukhanya kokukhanya okuboniswe ebusweni be-asteroid, izazi zezinkanyezi zizokala "ukufakwa" kwamakhemikhali amaminerali.
Ucwaningo luhlose ukwenza ngosizo lwesibonakudeli se-infrescope esingamamitha ayi-3.2 esisephezulu esiqongweni saseHawaii saseManaiian sea-Kea kanye neSpex infred spectrograph. "Manje kuncane ngesikhungo, futhi ngenxa yendlela yaso, singafunda okuthile okusha," kusho uLance Benner, usosayensi wase-NASA Reactive Laborator.
Le nhlangano ibuye iphakamise izazi zezinkanyezi zabathandi ukwenza ucwaningo ngokwabo. Ngakho-ke, uPaul Chodas wathi i-asteroid izoba yinto ebabazekayo kakhulu lapho ushayela esibhakabhakeni eseningizimu. Uthemba ukuthi abathandi bazokwazi ukufakaza le nto. "Izazi zezinkanyezi ezingama-amateur ezise-asterphere yaseningizimu zizokwazi ukubona i-asteroid kusihlwa ngaphambi kokuhlubuka okusondele kakhulu. Kepha kulokhu bazodinga isibonakude esiphakathi nendawo enomgodi okungenani wamasentimitha ayisishiyagalombili, kanye nemephu, "kusho amaChodas afingqiwe.
Umthombo: Isayensi Enqunu