2024 UQ

2024 UQ, designated formerly as A11dc6D, was a one-meter meteoroid that entered the Earth's atmosphere and burned up harmlessly on 22 October 2024 above the Pacific Ocean off the coast of California. 2024 UQ is the tenth impact event that was successfully predicted. It was discovered by the ATLAS survey. The Center for Near-Earth Object Studies reported a fireball at 10:54 (UTC).^[3]

2024 UQ

Discovery[1]
Discovered by	H. Weiland
Discovery site	ATLAS-HKO
Discovery date	October 22, 2024
Designations
MPC designation	2024 UQ
Alternative designations	A11dc6D
Minor planet category	NEO · Apollo
Orbital characteristics[2]
Epoch 22 October 2024 (JD 2460605.5)
Uncertainty parameter 2
Observation arc	0.233 h (14 min)
Aphelion	3.742 AU
Perihelion	0.594 AU
Semi-major axis	2.168 AU
Eccentricity	0.7258
Orbital period (sidereal)	3.19 yr (1,166 d)
Mean anomaly	345.776°
Mean motion	0° 18m 31.309s / day
Inclination	1.711°
Longitude of ascending node	209.139°
Argument of perihelion	267.605°
Earth MOID	5.67682×10−6 AU (849.240 km)
Physical characteristics
Absolute magnitude (H)	32.832±0.226[2]

Discovery

The Asteroid Terrestrial-impact Last Alert System (ATLAS) first noted this asteroid. Due to 2024 UQ being close to the boundary between two adjacent fields,^{[clarification needed][4]} only hours later was the object reported to be moving. By then, the asteroid had already reached Earth. After prediscovery images identified from the Catalina Sky Survey, and a flash recorded from the meteorological Geostationary Operational Environmental Satellite (GOES) satellite, the impact trajectory was improved, showing an impact site over the Pacific Ocean.

See also

• Asteroid impact prediction
  • 2024 BX₁
  • 2024 RW₁
  • 2024 XA₁