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2004 FH Lähteet | NavigointivalikkoInfobox OKJPL Small-Body Database Browser: (2004 FH)Recently Discovered Near-Earth Asteroid Makes Record-breaking Approach to Earth

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Aten-asteroidit


lähelläMaataasteroidiNASAnLINEAR15. maaliskuuta200418. maaliskuuta2004Ateninydinasetta2044










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2004 FH




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2004 FH

Asteroid 2004 FH.gif
Sveitsiläisen Geneven observatorion kuvasarja 2004 FH:n maapallon ohituksesta. Kuvassa vilahtaa myös satelliitti.
Löytäminen
Löytäjät
LINEAR
Löytöaika
15. maaliskuuta 2004

Kiertoradan ominaisuudet
Keskietäisyys Auringosta

0,82 AU
Pienin etäisyys Auringosta

0,58 AU
Suurin etäisyys Auringosta

1,05 AU
Eksentrisyys
0,289

Kiertoaika Auringon ympäri
270 päivää
0,74 vuotta
Inklinaatio
0,02°
Fyysiset ominaisuudet
Läpimitta
0,03 km
Pyörähdysaika
0,05 h
Absoluuttinen kirkkaus
26,15
Infobox OK

2004 FH on lähellä Maata oleva asteroidi. Se löydettiin NASAn LINEAR-ohjelmassa 15. maaliskuuta 2004. Kappale on läpimitaltaan noin 30 metriä, massaltaan 27 000 tonnia ja se ohitti maapallon vain 43 000 km:n päästä 18. maaliskuuta 2004. Vertailun vuoksi esimerkiksi TV-satelliitit kiertävät maapalloa n. 36 000 km:n korkeudessa.


2004 FH kuuluu Atenin asteroidiperheeseen. Jos kappale olisi osunut maapalloon, ilmakehässä syntynyt räjähdys olisi vastannut satoja kilotonneja TNT:tä tai pientä ydinasetta, mutta vaikutus tuskin ulottunut maanpinnalle asti merkittävästi.


Seuraavan kerran 2004 FH tulee lähelle maata 2044.




2004 FH:n rata maan ja kuun ohituksessa 2004



Lähteet |



  • JPL Small-Body Database Browser: (2004 FH) (englanniksi)


  • Recently Discovered Near-Earth Asteroid Makes Record-breaking Approach to Earth (englanniksi)




Noudettu kohteesta ”https://fi.wikipedia.org/w/index.php?title=2004_FH&oldid=14672657”










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