2022 EB5

{{short description|2022 asteroid-type meteoroid}}

{{DISPLAYTITLE:{{mp|2022 EB|5}}}}

{{Use dmy dates|date=March 2022}}

{{Infobox planet

| minorplanet = yes

| name = {{mp|2022 EB|5}}

| background = #FFC2E0

| image =

| image_size =

| caption =

| discovery_ref = {{Cite web |date=11 March 2022 |title=MPEC 2022-E178 : 2022 EB5 |url=https://minorplanetcenter.net/mpec/K22/K22EH8.html |website=Minor Planet Electronic Circulars |publisher=Minor Planet Center |accessdate=11 March 2022}}

| discoverer = Krisztián Sárneczky

| discovery_site = Piszkéstető Stn.

| discovered = 11 March 2022

| mpc_name = {{mp|2022 EB|5}}

| alt_names = Sar2593{{Cite web |date=11 March 2022 |title="Pseudo-MPEC" for Sar2593 |url=https://www.projectpluto.com/neocp2/mpecs/Sar2593.htm |url-status=live |archive-url=https://web.archive.org/web/20220312002834/https://www.projectpluto.com/neocp2/mpecs/Sar2593.htm |archive-date=12 March 2022 |publisher=Project Pluto |accessdate=11 March 2022}}

| pronounced =

| named_after =

| mp_category = {{nowrap|NEO{{efn|{{mp|2022 EB|5}} is not considered a potentially hazardous object (PHO) due to its small size. 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.{{cite web|title=NEO Basics|url=https://cneos.jpl.nasa.gov/about/neo_groups.html|website=Center for NEO Studies |publisher=Jet Propulsion Laboratory |accessdate=13 March 2022}}}}{{·}}Apollo{{Cite web |title=JPL Small-Body Database Browser: (2022 EB5) |url=https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=54254967 |publisher=Jet Propulsion Laboratory |type=2022-03-11 last obs. |accessdate=11 March 2022}}{{Cite web |title=2022 EB5 |url=https://www.minorplanetcenter.net/db_search/show_object?object_id=2022+EB5 |publisher=Minor Planet Center |accessdate=11 March 2022}}}}

| orbit_ref =

| epoch = 11 March 2022 (JD 2459649.5)

| uncertainty = 6

| observation_arc = 1.9 hours

| earliest_precovery_date =

| aphelion = 4.772 AU

| perihelion = 0.888 AU

| time_periastron = July 2017
(last perihelion)

| semimajor = 2.830 AU

| eccentricity = 0.6863

| period = 4.76 yr (1,738 days)

| mean_anomaly = 353.614°

| mean_motion = {{Deg2DMS|0.2070756|sup=ms}} / day

| inclination = 10.422°

| asc_node = 350.992°

| arg_peri = 222.416°

| moid = 3717 km

| jupiter_moid = 0.661 AU

| mean_diameter = 2 m

| rotation =

| albedo =

| spectral_type =

| magnitude =

| abs_magnitude = {{val|31.33|0.35}}

}}

{{mp|2022 EB|5}} 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 {{cvt|18|km/s|mi/s}}, the asteroid's impact generated a 4-kiloton-equivalent fireball that was detected by infrasound from Greenland and Norway.{{cite web |title=Firesballs Reported by US Government Sensors |url=https://cneos.jpl.nasa.gov/fireballs/ |website=Center for Near Earth Object Studies Fireball and Bolide Data |publisher=NASA Jet Propulsion Laboratory |access-date=25 March 2022|url-status=dead|archive-url=https://web.archive.org/web/20220321131639/https://cneos.jpl.nasa.gov/fireballs/|archive-date=21 March 2022}}{{cite news|title=2022 EB5 : 5th predicted Earth impact!|url=https://www.imo.net/2022-eb5-5th-predicted-earth-impactor-asteroid-on-march-11/|first=Karl|last=Antier|publisher=International Meteor Organization|date=13 March 2022|accessdate=15 March 2022}} A bright flash possibly associated with the event was reported by observers from Northern Iceland.

It was discovered by astronomer Krisztián Sárneczky at Konkoly Observatory's Piszkéstető Station in Mátra Mountains, Hungary about two hours before impact. {{mp|2022 EB|5}} is the fifth asteroid discovered before impacting Earth.{{cite news|title=NASA System Predicts Impact of Small Asteroid|url=https://www.nasa.gov/feature/jpl/nasa-system-predicts-impact-of-small-asteroid|publisher=NASA|date=15 March 2022|accessdate=16 March 2022}} It was briefly listed on the Minor Planet Center's Near-Earth Object Confirmation Page under the temporary designation Sar2593.

File:Animation of 2022 EB5 around Sun.gif