2022 EB5

2022 EB5
Discovery[1][2]
Discovered byKrisztián Sárneczky
Discovery sitePiszkéstető Stn.
Discovery date11 March 2022
Designations
2022 EB5
Sar2593[3]
NEO[a] · Apollo[6][1]
Orbital characteristics[6]
Epoch 11 March 2022 (JD 2459649.5)
Uncertainty parameter 6
Observation arc1.9 hours[1]
Aphelion4.772 AU
Perihelion0.888 AU
2.830 AU
Eccentricity0.6863
4.76 yr (1,738 days)
353.614°
0° 12m 25.472s / day
Inclination10.422°
350.992°
July 2017
(last perihelion)
222.416°
Earth MOID3717 km
Jupiter MOID0.661 AU
Physical characteristics
2 m[4]
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 Sárneczky at Konkoly Observatory's Piszkéstető Station in Mátra 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

See also

Notes

  1. ^ 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

  1. ^ a b c "2022 EB5". Minor Planet Center. Retrieved 11 March 2022.
  2. ^ a b "MPEC 2022-E178 : 2022 EB5". Minor Planet Electronic Circulars. Minor Planet Center. 11 March 2022. Retrieved 11 March 2022.
  3. ^ a b ""Pseudo-MPEC" for Sar2593". Project Pluto. 11 March 2022. Archived from the original on 12 March 2022. Retrieved 11 March 2022.
  4. ^ a b c "NASA System Predicts Impact of Small Asteroid". NASA. 15 March 2022. Retrieved 16 March 2022.
  5. ^ "NEO Basics". Center for NEO Studies. Jet Propulsion Laboratory. Retrieved 13 March 2022.
  6. ^ a b c "JPL Small-Body Database Browser: (2022 EB5)" (2022-03-11 last obs.). Jet Propulsion Laboratory. Retrieved 11 March 2022.
  7. ^ "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.
  8. ^ a b c d Antier, Karl (13 March 2022). "2022 EB5 : 5th predicted Earth impact!". International Meteor Organization. Retrieved 15 March 2022.

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