2024 BX1
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.
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° 38m 22.038s / day |
| Inclination | 7.266° |
Longitude of ascending node | 300.141° |
| 243.604° | |
| Earth MOID | 0.000532 AU (79,600 km) |
| Physical characteristics | |
Mean diameter | ≈1 m |
| 32.795±0.353 32.84 | |
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.