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A fragment of 2024 BX1 | |
Discovery | |
---|---|
Discovered by | Krisztián Sárneczky |
Discovery site | Piszkéstető Stn. |
Discovery date | 20 January 2024 |
Designations | |
MPC designation | 2024 BX1 |
Alternative designations | Sar2736 |
Minor planet category | NEO · Apollo |
Orbital characteristics | |
Epoch 13 September 2023 (JD 2460200.5) | |
Uncertainty parameter 6 | |
Observation arc | 2.49 h (150 min) |
Aphelion | 1.833 AU |
Perihelion | 0.835 AU |
Semi-major axis | 1.334 AU |
Eccentricity | 0.3740 |
Orbital period (sidereal) | 1.54 yr (563.0 d) |
Mean anomaly | 246.680° |
Mean motion | 0° 38 22.038 / day |
Inclination | 7.266° |
Longitude of ascending node | 300.141° |
Argument of perihelion | 243.604° |
Earth MOID | 0.000532 AU (79,600 km) |
Physical characteristics | |
Mean diameter | ≈1 m |
Absolute magnitude (H) | 32.795±0.353 32.84 |
2024 BX1, previously known under its temporary designation Sar2736, was a metre-sized asteroid or meteoroid that entered Earth's atmosphere on 21 January 2024 00:33 UTC and disintegrated as a meteor over Berlin. 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. The fireball was observed by the cameras of the AllSky7 and Fripon networks. 2024 BX1 is the eighth asteroid discovered before impacting Earth, and is Sárneczky's third discovery of an impacting asteroid. Before it impacted, 2024 BX1 was a near-Earth asteroid on an Earth-crossing Apollo-type orbit.
Meteorite fragments of 2024 BX1 were found five days after it entered the Earth's atmosphere. It was later found to be an aubrite, a rare group of meteorites.
See also
- Impact event
- Asteroid impact prediction
- 2023 CX1, the seventh asteroid discovered before being successfully predicted to impact Earth, and the third asteroid to have its meteorite fall collected
References
- ^ "2024 BX1". Minor Planet Center. Retrieved 21 January 2024.
- ^ "MPEC 2024-B76 : 2024 BX1". Minor Planet Electronic Circular. Minor Planet Center. 21 January 2024. Retrieved 21 January 2024.
- ^ "Small-Body Database Lookup: (2024 BX1)" (2024-01-21 last obs.). Jet Propulsion Laboratory. Retrieved 21 January 2024.
- O'Callaghan, Jonathan (10 February 2024). "Fragments of Asteroid With Mystery Origin Are Found Outside Berlin - Astronomers tracked the entry of a small space rock into Earth's atmosphere, and then meteorite hunters made an unexpected discovery". The New York Times. Archived from the original on 10 February 2024. Retrieved 10 February 2024.
- "german@allsky7.groups.io | SAR2736". allsky7.groups.io. Retrieved 21 January 2024.
- "Single event view (773388)". fireball.fripon.org. Retrieved 21 January 2024.
- King, Bob (26 January 2024). "ASTEROID 2024 BX1: FROM A DOT OF LIGHT TO FIREBALL TO ROCKS ON THE GROUND". Sky & Telescope. Retrieved 27 January 2024.
- @SAL_DLR_Berlin (26 January 2024). "And here we go! The joint team from @DLR_en, @mfnberlin and @FU_Berlin managed to recover two fragments that are thought to be from asteroid #2024BX1. We will still be going to the field in the next few days with the hope of finding more material to study! #meteorites" (Tweet) – via Twitter.
- "Asteroid that impacted near Berlin identified as a rare Aubrite". SETI. 5 February 2024. Retrieved 6 February 2024.
External links
- 2024 BX1 at NeoDyS-2, Near Earth Objects—Dynamic Site
- 2024 BX1 at ESA–space situational awareness
- 2024 BX1 at the JPL Small-Body Database
- 2024 BX1: 8th predicted Earth impact! | IMO at International Meteor Organization
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