Jump to content

Main menu Navigation ●Main page ●Contents ●Current events ●Random article ●About Wikipedia ●Contact us ●Donate Contribute ●Help ●Learn to edit ●Community portal ●Recent changes ●Upload file

●Create account ●Log in ●Create account ● Log in Pages for logged out editors learn more ●Contributions ●Talk

(Top) 1 See also 2 Notes 3 References 4 External links

2022 EB₅

●العربية ●Deutsch ●فارسی ●Français ●Galego ●한국어 ●Italiano ●日本語 ●Svenska Edit links ●Article ●Talk ●Read ●Edit ●View history Tools Actions ●Read ●Edit ●View history General ●What links here ●Related changes ●Upload file ●Special pages ●Permanent link ●Page information ●Cite this page ●Get shortened URL ●Download QR code ●Wikidata item Print/export ●Download as PDF ●Printable version In other projects ●Wikimedia Commons Appearance From Wikipedia, the free encyclopedia

2022 EB₅
Discovery^[1]^[2]
Discovered by	Krisztián Sárneczky
Discovery site	Piszkéstető Stn.
Discovery date	11 March 2022
Designations
MPC designation	2022 EB₅
Alternative designations	Sar2593^[3]
Minor planet category	NEO^[a] · Apollo^[6]^[1]
Orbital characteristics^[6]
Epoch 11 March 2022 (JD 2459649.5)
Uncertainty parameter6
Observation arc	1.9 hours^[1]
Aphelion	4.772 AU
Perihelion	0.888 AU
Semi-major axis	2.830 AU
Eccentricity	0.6863
Orbital period (sidereal)	4.76 yr (1,738 days)
Mean anomaly	353.614°
Mean motion	0° 12^m 25.472^s / day
Inclination	10.422°
Longitude of ascending node	350.992°
Time of perihelion	July 2017 (last perihelion)
Argument of perihelion	222.416°
Earth MOID	3717 km
Jupiter MOID	0.661 AU
Physical characteristics
Mean diameter	2 m^[4]
Absolute magnitude (H)	31.33±0.35^[6]

2022 EB₅ was a small, two-metre Apollo near-Earth asteroid that disintegrated in Earth's atmosphere at 21:22 UTC on 11 March 2022, over the Arctic Ocean southwest of the Norwegian island Jan Mayen. With an atmospheric entry speed of 18 km/s (11 mi/s), the asteroid's impact generated a 4-kiloton-equivalent fireball that was detected by infrasound from Greenland and Norway.^[7]^[8] A bright flash possibly associated with the event was reported by observers from Northern Iceland.^[8]

It was discovered by astronomer Krisztián SárneczkyatKonkoly Observatory's Piszkéstető StationinMátra Mountains, Hungary about two hours before impact.^[2]^[8] 2022 EB₅ is the fifth asteroid discovered before impacting Earth.^[8]^[4] It was briefly listed on the Minor Planet Center's Near-Earth Object Confirmation Page under the temporary designation Sar2593.^[3]

Animation of 2022 EB5 around Sun
Sun · Earth · 2022 EB5

Notes

[edit]

^ 2022 EB₅ is not considered a potentially hazardous object (PHO) due to its small size.^[4] A PHO is defined by having an Earth minimum orbit intersection distance (MOID) of 0.05 AU or less, and having an absolute magnitude of 22 or brighter.^[5]

References

[edit]

^ ^a ^b ^c "2022 EB5". Minor Planet Center. Retrieved 11 March 2022.

^ ^a ^b "MPEC 2022-E178 : 2022 EB5". Minor Planet Electronic Circulars. Minor Planet Center. 11 March 2022. Retrieved 11 March 2022.

^ ^a ^b ""Pseudo-MPEC" for Sar2593". Project Pluto. 11 March 2022. Archived from the original on 12 March 2022. Retrieved 11 March 2022.

^ ^a ^b ^c "NASA System Predicts Impact of Small Asteroid". NASA. 15 March 2022. Retrieved 16 March 2022.

^ "NEO Basics". Center for NEO Studies. Jet Propulsion Laboratory. Retrieved 13 March 2022.

^ ^a ^b ^c "JPL Small-Body Database Browser: (2022 EB5)" (2022-03-11 last obs.). Jet Propulsion Laboratory. Retrieved 11 March 2022.

^ "Firesballs Reported by US Government Sensors". Center for Near Earth Object Studies Fireball and Bolide Data. NASA Jet Propulsion Laboratory. Archived from the original on 21 March 2022. Retrieved 25 March 2022.