2024 BX1

It was discovered less than three hours before impact by Hungarian astronomer [[Krisztián Sárneczky]] at [[Konkoly Observatory]]'s [[Piszkéstető Station]] in the [[Mátra Mountains]], [[Hungary]]. It was observed with the {{Convert|60|cm|in|abbr=off|frac=8}} [[Schmidt camera|Schmidt Telescope]]. Sárneczky first thought it was a known asteroid because it had a brightness of 18th [[Magnitude (astronomy)|magnitude]], but he could not find it in any catalog, so he reported it to the [[Minor Planet Center]]. The [[Meteoroid#Fireball|fireball]] was observed by the cameras of the AllSky7 and Fripon networks. {{mp|2024 BX|1}} is the eighth asteroid discovered before impacting Earth, and is Sárneczky's third discovery of an impacting asteroid. Before it impacted, {{mp|2024 BX|1}} was a [[near-Earth asteroid]] on an Earth-crossing [[Apollo asteroid|Apollo-type]] orbit.

It was discovered less than three hours before impact by Hungarian astronomer [[Krisztián Sárneczky]] at [[Konkoly Observatory]]'s [[Piszkéstető Station]] in the [[Mátra Mountains]], [[Hungary]]. It was observed with the {{Convert|60|cm|in|abbr=off|frac=8}} [[Schmidt camera|Schmidt Telescope]]. Sárneczky first thought it was a known asteroid because it had a brightness of 18th [[Magnitude (astronomy)|magnitude]], but he could not find it in any catalog, so he reported it to the [[Minor Planet Center]]. The [[Meteoroid#Fireball|fireball]] was observed by the cameras of the AllSky7 and Fripon networks. {{mp|2024 BX|1}} is the eighth asteroid discovered before impacting Earth, and is Sárneczky's third discovery of an impacting asteroid. Before it impacted, {{mp|2024 BX|1}} was a [[near-Earth asteroid]] on an Earth-crossing [[Apollo asteroid|Apollo-type]] orbit.

The [[bolide]] was studied in June 2024. It had a steep entry of 75.6° and an entry speed of {{Convert|15.2|km/s|km/h mph|-1|abbr=on}}. The bolide was observed with the SDAFO at [[Karl Schwarzschild Observatory|Tautenburg]], which took a spectrum of the bolide. The spectrum was low in iron, consistent with an [[enstatite]]-rich body ([[E-type asteroid]]). At a height of {{Convert|55|km|mi|1}} the meteoroid fragmented into smaller pieces. These primary pieces then broke up again at a height of {{convert|39|-|29|km|mi|abbr=on}}. The size and mass were first estimated at 1 meter and {{Convert|1700|kg|lb|0|abbr=off}} based on [[Albedo|albedos]] of [[S-type asteroid|S-type asteroids]]. The [[Radiometry|radiometric measurements]] from the [[European Fireball Network]] did however suggest a mass of about 1200 kg. Considering it was an E-type asteroid, which have higher albedos, the new estimates are .44 meter and {{Convert|140|kg|lb|0|abbr=off}}.

The bolide had a steep entry of 75.6° and an entry speed of {{Convert|15.2|km/s|km/h mph|-1|abbr=on}}. The bolide was observed with the SDAFO at [[Karl Schwarzschild Observatory|Tautenburg]], which took a spectrum of the bolide. The spectrum was low in iron, consistent with an [[enstatite]]-rich body ([[E-type asteroid]]). At a height of {{Convert|55|km|mi|1}} the meteoroid fragmented into smaller pieces. These primary pieces then broke up again at a height of {{convert|39|-|29|km|mi|abbr=on}}. The size and mass were first estimated at 1 meter and {{Convert|1700|kg|lb|0|abbr=off}} based on [[Albedo|albedos]] of [[S-type asteroid|S-type asteroids]]. The [[Radiometry|radiometric measurements]] from the [[European Fireball Network]] did however suggest a mass of about 1200 kg. Considering it was an E-type asteroid, which have higher albedos, the new estimates are .44 meter and {{Convert|140|kg|lb|0|abbr=off}}.

== Ribbeck meteorite ==

== Ribbeck meteorite ==