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==== Earth-grazers ==== Some small asteroids that enter the upper atmosphere of Earth at a shallow angle remain intact and leave the atmosphere again, continuing on a solar orbit. During the passage through the atmosphere, due to the burning of its surface, such an object can be observed as an [[Earth-grazing fireball]]. On August 10, 1972, a meteor that became known as the [[1972 Great Daylight Fireball]] was witnessed by many people and even filmed as it moved north over the [[Rocky Mountains]] from the U.S. Southwest to Canada.<ref>{{cite web |url=https://www.youtube.com/watch?v=7M8LQ7_hWtE |title=Grand Teton Meteor (video) |work=[[YouTube]] |date=10 November 2007 |access-date=January 2, 2025 |url-status=live |archive-url=https://web.archive.org/web/20170214110154/https://www.youtube.com/watch?v=7M8LQ7_hWtE |archive-date=February 14, 2017}}</ref> It passed within {{convert|58|km|mi|abbr=on}} of the Earth's surface.<ref>{{cite journal |first=Z. |last=Ceplecha |title=Earth-grazing daylight fireball of August 10, 1972 |date=March 1994 |journal=[[Astronomy & Astrophysics]] |volume=283 |issue=1 |pages=287−288 |bibcode=1994A&A...283..287C}}</ref> On October 13, 1990, [[Earth-grazing meteoroid of 13 October 1990|Earth-grazing meteoroid EN131090]] was observed above Czechoslovakia and Poland, moving at {{convert|41.74|km/s|mi/s|abbr=on}} along a {{convert|409|km|mi|adj=on|abbr=on}} trajectory from south to north. The closest approach to the Earth was {{convert|98.67|km|mi|abbr=on}} above the surface. It was captured by two all-sky cameras of the [[European Fireball Network]], which for the first time enabled geometric calculations of the orbit of such a body.<ref name="AA">{{cite journal |last1=Borovička |first1=J. |last2=Ceplecha |first2=Z. |title=Earth-grazing fireball of October 13, 1990 |journal=Astronomy & Astrophysics |volume=257 |issue=1 |pages=323–328 |date=April 1992 |bibcode=1992A&A...257..323B |issn=0004-6361}}</ref>
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