2024 XA1

2024 XA₁, formerly designated as C0WEPC5, is a small meteoroid that fell over eastern Siberia near the city of Olekminsk on 3 December 2024, 16:15 GMT, around 1,000 kilometers east of the Tunguska event impact location.^[4][5] It is the eleventh impact event ever that was successfully predicted, and the fourth in 2024. The impact was witnessed by many people across the Yakutia region of Siberia.^[6]

2024 XA₁

Discovery[1]
Discovered by	V. F. Carvajal
Discovery site	Kitt Peak – Bok (V00)
Discovery date	3 December 2024
Designations
MPC designation	2024 XA1
Alternative designations	C0WEPC5
Minor planet category	NEO · Apollo
Orbital characteristics[2]
Epoch 3 December 2024 (JD 2460647.5)
Uncertainty parameter 2
Observation arc	9 h (540 min)
Aphelion	2.541 AU
Perihelion	0.852 AU
Semi-major axis	1.696 AU
Eccentricity	0.4977
Orbital period (sidereal)	2.21 yr (807 d)
Mean anomaly	349.188°
Mean motion	0° 26m 45.795s / day
Inclination	0.108°
Longitude of ascending node	72.255°
Argument of perihelion	53.100°
Earth MOID	3.27716×10−5 AU (4.90256×103 km)
Physical characteristics[2][3]
Mean diameter	~0.7 m (2.3 ft)
Absolute magnitude (H)	32.974±0.476

Discovery

The object was discovered at the Kitt Peak National Observatory in Arizona, United States. The time between discovery and impact was around 12 hours, making it the second-longest lead time between discovery and impact, behind only the discovery and impact of 2008 TC₃.^[7]

Ground observation

The object exploded as a fireball over eastern Siberia, and was visible to many of the people in that sparsely populated region. Currently, no meteorites have been found yet, but it was speculated to be in the remote forests of that region.^[6]

See also

• List of predicted asteroid impacts on Earth
• Asteroid impact prediction
  • 2024 BX₁
  • 2024 RW₁
  • 2024 UQ
• Chelyabinsk meteor