2024 ON

2024 ON is a near-Earth object with a length around 350 meters^[2] that flew past Earth on 17 September 2024 at a distance of 620,000 miles (1,000,000 km).^[3] It was discovered by ATLAS-MLO, Mauna Kea on 27 July 2024.^[2] Radar observations showed that 2024 ON is a contact binary.

2024 ON

Designations
MPC designation	2024 ON
Minor planet category	NEO Apollo PHA
Orbital characteristics[1]
Epoch 2024-Oct-17 (JD 2460600.5)
Uncertainty parameter 0
Observation arc	4,166 days
Aphelion	3.769 AU
Perihelion	1.007 AU
Semi-major axis	2.388 AU
Eccentricity	0.578
Orbital period (sidereal)	3.691 years
Mean anomaly	7.172°
Inclination	7.626°
Longitude of ascending node	172.271°
Argument of perihelion	185.561°
Earth MOID	0.00311 AU
Jupiter MOID	1.680 AU
Physical characteristics[1]
Absolute magnitude (H)	20.375

See also

• 2024 MK – a near-Earth object that made close approach on 29 June 2024