2022 OB5

2022 OB₅ is a small near-Earth asteroid that passed within 0.00679 AU (1,016,000 km) from Earth on 5 August 2022.^[2] It was the primary target of AstroForge's Brokkr-2 (Odin) mission, which launched alongside IM-2 in February 2025, and was planned to reach the asteroid around December 2025.^[3] Communication issues ultimately prevented the mission from visiting the asteroid.^[4] It was selected for the mission as it is suspected to be a metallic M-type asteroid suitable for space mining in the future. However, its actual spectroscopic composition is not yet known.^[5][6]

2022 OB₅

Discovery[1]
Discovery site	San Pedro de Atacama
Discovery date	30 July 2022
Designations
MPC designation	2022 OB5
Alternative designations	K22O05B
Minor planet category	NEO · Apollo
Orbital characteristics[2]
Epoch 17 October 2024 (JD 2460600.5)
Uncertainty parameter 4
Observation arc	9 days
Earliest precovery date	28 July 2022
Aphelion	1.068 AU
Perihelion	0.950 AU
Semi-major axis	1.009 AU
Eccentricity	0.05860
Orbital period (sidereal)	1.013 yr (370 days)
Mean anomaly	334.06°
Mean motion	0° 58m 21.752s / day
Inclination	2.060°
Longitude of ascending node	302.69°
Argument of perihelion	105.71°
Earth MOID	0.00367 AU (549,000 km)
Physical characteristics[2]
Mean diameter	3–13 m (9.8–42.7 ft)
Spectral type	M-type asteroid?
Absolute magnitude (H)	28.92±0.423

See also

• List of minor planets and comets visited by spacecraft