2023 CX1
2023 CX1, initially known under temporary designation Sar2667, was a metre-sized asteroid or meteoroid that entered Earth's atmosphere on 13 February 2023 02:59 UTC and disintegrated as a meteor over the coast of Normandy, France along the English Channel. It was discovered less than seven hours before impact, by Hungarian astronomer Krisztián Sárneczky at Konkoly Observatory's Piszkéstető Station in the Mátra Mountains, Hungary. 2023 CX1 is the seventh asteroid discovered before impacting Earth and successfully predicted, and the third of those for which meteorites have been recovered. Before it impacted, 2023 CX1 was a near-Earth asteroid on an Earth-crossing Apollo-type orbit.
Photograph of 2023 CX1 as it entered Earth's atmosphere over northern France on 13 February 2023 | |
| Discovery | |
|---|---|
| Discovered by | Krisztián Sárneczky |
| Discovery site | Piszkéstető Stn. |
| Discovery date | 12 February 2023 |
| Designations | |
MPC designation | 2023 CX1 |
Alternative designations | Sar2667 |
Minor planet category | NEO · Apollo |
| Orbital characteristics | |
| Epoch 1 January 2023 (JD 2459945.5) | |
| Uncertainty parameter 5 | |
| Observation arc | 6.57 hours (0.27 d) |
| Aphelion | 2.337 AU |
| Perihelion | 0.921 AU |
Semi-major axis | 1.629 AU |
| Eccentricity | 0.4346 |
Orbital period (sidereal) | 2.08 yr (760 days) |
Mean anomaly | 325.105° |
Mean motion | 0° 28m 25.982s / day |
| Inclination | 3.419° |
Longitude of ascending node | 323.870° |
| 13 February 2021 | |
| 218.790° | |
| Earth MOID | 0.000111 AU (16,600 km; 0.043 LD) |
| Physical characteristics | |
Mean diameter | ≈ 1 m |
| Mass | ≈ 1000 kg |
| ≈ 13 (peak) | |
| 32.645±0.512 32.76 | |
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