2018 AH (original) (raw)
Der Asteroid 2018 AH ist ein erdnahes Objekt, das am 3. Januar 2018 entdeckt wurde, nachdem es bereits am 2. Januar 2018 um 4:25 Uhr (TDB) die Erde innerhalb der Mondbahn passiert hatte. Der Durchmesser wird mit 84 bis 190 m angegeben. Die Geschwindigkeit betrug bei der größten Annäherung 13,8 km/s.
| Property | Value |
|---|---|
| dbo:Planet/apoapsis | 6.1565507707878E8 |
| dbo:Planet/orbitalPeriod | 3.99 |
| dbo:Planet/periapsis | 1.36952362689729E8 |
| dbo:absoluteMagnitude | 22.700000 (xsd:double) |
| dbo:abstract | Der Asteroid 2018 AH ist ein erdnahes Objekt, das am 3. Januar 2018 entdeckt wurde, nachdem es bereits am 2. Januar 2018 um 4:25 Uhr (TDB) die Erde innerhalb der Mondbahn passiert hatte. Der Durchmesser wird mit 84 bis 190 m angegeben. Die Geschwindigkeit betrug bei der größten Annäherung 13,8 km/s. (de) 2018 AH is a sub-kilometer asteroid, classified as near-Earth object of the Apollo group, approximately 100 m (300 ft) in diameter. It was first observed on 4 January 2018, by the Asteroid Terrestrial-impact Last Alert System (ATLAS) on Mauna Loa and quickly followed-up by many other surveys, with precovery observations found from Pan-STARRS and PTF from the day previous. It is the largest known asteroid to pass so close to Earth (0.001985 AU (297,000 km; 184,500 mi)) since 2002 JE9 in 1971, and until 2001 WN5 in 2028, although it was only discovered two days after its closest approach on 2 January 2018, at 04:25 UTC. The Tunguska asteroid was likely of a similar size, if not slightly smaller. Before being recovered on 4 January 2022 11:49 UTC at an Earth distance of 9.8 million km, the asteroid only had an observation arc of 46 days and had not been observed since February 2018. Being a short arc object that had not been observed for years generated an uncertainty that is relatively large. Between 24-31 December 2021 it was only known to make an Earth approach of between 1-8 million km. As it came to perihelion on 3 December 2021, it was approaching from the direction of the Sun. (en) 2018 AH è la designazione data all'asteroide di circa 81 m che il 2 gennaio 2018 transitò a poco più di 300000 km dalla Terra, circa quattro quinti della distanza del pianeta stesso dalla Luna, diventando, per dimensioni, il secondo maggiore tra quelli transitati a meno di una distanza lunare. 2018 AH è stato scoperto solo due giorni dopo il suo massimo avvicinamento, poiché osservato dalla Terra proveniva da un punto in prossimità del Sole e quindi non visibile. Successivamente l'osservazione è potuta proseguire fin oltre meta febbraio, fornendo complessivamente, compreso una prescoperta di un giorno, un arco temporale di 46 giorni. (it) 2018 AH – planetoida z grupy planetoid bliskich Ziemi z grupy Apolla. Została odkryta 4 stycznia 2018 czasu UTC (3 stycznia czasu lokalnego) przez teleskop programu znajdujący się na Mauna Loa na Hawajach, dwa dni po przelocie blisko Ziemi 2 stycznia 2018 o godzinie 4:25 UTC, kiedy to minęła Ziemię w odległości 297 tysięcy kilometrów, czyli 0,77 średniej odległości Księżyca od Ziemi. Wielkość jej jest szacowana na 84–190 m. (pl) |
| dbo:albedo | 0.050000 (xsd:double) |
| dbo:apoapsis | 615655077078.780029 (xsd:double) |
| dbo:discovered | 2018-01-04 (xsd:date) |
| dbo:discoverer | dbr:Asteroid_Terrestrial-impact_Last_Alert_System |
| dbo:epoch | 2022-Jan-21 (JD2459600.5) |
| dbo:orbitalPeriod | 344736.000000 (xsd:double) |
| dbo:periapsis | 136952362689.729004 (xsd:double) |
| dbo:thumbnail | wiki-commons:Special:FilePath/2018AH-orbit.png?width=300 |
| dbo:wikiPageExternalLink | https://minorplanetcenter.net/mpec/K18/K18A23.html https://twitter.com/minorplanetctr/status/949790577331261441%3Flang=en |
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| dbo:wikiPageLength | 12045 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1117135767 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Precovery dbr:Degree_(angle) dbr:Apollo_asteroid dbr:Julian_day dbr:List_of_asteroid_close_approaches_to_Earth_in_2018 dbr:Perihelion dbr:Mauna_Loa_Observatory dbr:101955_Bennu dbc:Apollo_asteroids dbc:Astronomical_objects_discovered_in_2018 dbc:Near-Earth_objects_in_2018 dbc:Near-Earth_objects_in_2021 dbr:Minor_Planet_Electronic_Circular dbc:Minor_planet_object_articles_(unnumbered) dbr:Apparent_magnitude dbr:Palomar_Transient_Factory dbr:Tunguska_event dbr:Julian_year_(astronomy) dbr:Minor-planet_designation dbr:99942_Apophis dbr:Absolute_magnitude dbr:Curve_fitting dbr:Pan-STARRS dbr:JPL_SBDB dbc:Discoveries_by_ATLAS dbr:Asteroid dbr:Asteroid_Terrestrial-impact_Last_Alert_System dbr:Astronomical_unit dbr:Inner_Solar_System dbr:Meter dbr:Near-Earth_object dbr:Observation_arc dbr:3-sigma |
| dbp:absMagnitude | 22.700000 (xsd:double) |
| dbp:albedo | 0.050000 (xsd:double) |
| dbp:aphelion | 4.1154 |
| dbp:argPeri | 322.900000 (xsd:double) |
| dbp:ascNode | 101.200000 (xsd:double) |
| dbp:background | #FFC2E0 (en) |
| dbp:caption | Orbital diagram of with the planets of the inner Solar System (en) |
| dbp:discovered | 2018-01-04 (xsd:date) |
| dbp:discoverer | dbr:Asteroid_Terrestrial-impact_Last_Alert_System |
| dbp:discoverySite | dbr:Mauna_Loa_Observatory |
| dbp:eccentricity | 0.636060 (xsd:double) |
| dbp:epoch | 2022 (xsd:integer) |
| dbp:inclination | 12.429000 (xsd:double) |
| dbp:magnitude | ~13 (en) |
| dbp:meanAnomaly | 11.960000 (xsd:double) |
| dbp:meanDiameter | 80 (xsd:integer) -11400.0 |
| dbp:meanMotion | / day (en) |
| dbp:minorplanet | yes (en) |
| dbp:mpCategory | NEOApollo (en) |
| dbp:mpcName | 2018 (xsd:integer) |
| dbp:name | 2018 (xsd:integer) |
| dbp:observationArc | 1.26545976E8 |
| dbp:perihelion | 0.91547 |
| dbp:period | 1.25914824E8 |
| dbp:semimajor | 2.5155 |
| dbp:timePeriastron | 2021 (xsd:integer) |
| dbp:uncertainty | 0 (xsd:integer) |
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| dcterms:subject | dbc:Apollo_asteroids dbc:Astronomical_objects_discovered_in_2018 dbc:Near-Earth_objects_in_2018 dbc:Near-Earth_objects_in_2021 dbc:Minor_planet_object_articles_(unnumbered) dbc:Discoveries_by_ATLAS |
| rdf:type | owl:Thing dbo:Place dbo:Location schema:Place dbo:CelestialBody wikidata:Q634 dbo:Planet |
| rdfs:comment | Der Asteroid 2018 AH ist ein erdnahes Objekt, das am 3. Januar 2018 entdeckt wurde, nachdem es bereits am 2. Januar 2018 um 4:25 Uhr (TDB) die Erde innerhalb der Mondbahn passiert hatte. Der Durchmesser wird mit 84 bis 190 m angegeben. Die Geschwindigkeit betrug bei der größten Annäherung 13,8 km/s. (de) 2018 AH – planetoida z grupy planetoid bliskich Ziemi z grupy Apolla. Została odkryta 4 stycznia 2018 czasu UTC (3 stycznia czasu lokalnego) przez teleskop programu znajdujący się na Mauna Loa na Hawajach, dwa dni po przelocie blisko Ziemi 2 stycznia 2018 o godzinie 4:25 UTC, kiedy to minęła Ziemię w odległości 297 tysięcy kilometrów, czyli 0,77 średniej odległości Księżyca od Ziemi. Wielkość jej jest szacowana na 84–190 m. (pl) 2018 AH is a sub-kilometer asteroid, classified as near-Earth object of the Apollo group, approximately 100 m (300 ft) in diameter. It was first observed on 4 January 2018, by the Asteroid Terrestrial-impact Last Alert System (ATLAS) on Mauna Loa and quickly followed-up by many other surveys, with precovery observations found from Pan-STARRS and PTF from the day previous. (en) 2018 AH è la designazione data all'asteroide di circa 81 m che il 2 gennaio 2018 transitò a poco più di 300000 km dalla Terra, circa quattro quinti della distanza del pianeta stesso dalla Luna, diventando, per dimensioni, il secondo maggiore tra quelli transitati a meno di una distanza lunare. (it) |
| rdfs:label | 2018 AH (de) 2018 AH (en) 2018 AH (it) 2018 AH (pl) |
| owl:sameAs | wikidata:2018 AH dbpedia-de:2018 AH dbpedia-it:2018 AH dbpedia-lb:2018 AH dbpedia-pl:2018 AH https://global.dbpedia.org/id/4NAdT |
| prov:wasDerivedFrom | wikipedia-en:2018_AH?oldid=1117135767&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/2018AH-orbit.png |
| foaf:isPrimaryTopicOf | wikipedia-en:2018_AH |
| foaf:name | (en) 2018 AH (en) |
| is dbo:wikiPageWikiLink of | dbr:List_of_asteroid_close_approaches_to_Earth_in_2021 dbr:2007_UW1 dbr:2011_XC2 dbr:2012_UE34 dbr:List_of_asteroid_close_approaches_to_Earth_in_2018 dbr:2018_GE3 dbr:2019_OK dbr:2020_AP1 dbr:2020_LD dbr:Asteroid_Terrestrial-impact_Last_Alert_System dbr:Asteroid_impact_prediction |
| is foaf:primaryTopic of | wikipedia-en:2018_AH |
