2019 AS5

2019 AS₅ is a near-Earth asteroid that passed close by the Earth on 8 January 2019. It passed within 0.04 lunar distances or 15,000 kilometers of the center of the Earth, 8600 km from the surface. It was discovered by the Mt. Lemmon Survey 9 hours after closest approach. It is estimated to be about 1–2 metres (3–7 feet) in diameter.^[2]

2019 AS₅

The hourly motion of 2019 AS5 passed the Earth between 7 and 8 January 2019
Discovery
Discovery site	Mount Lemmon Obs.
Discovery date	8 January 2019
Designations
MPC designation	2019 AS5
Minor planet category	NEO · Apollo[1]
Orbital characteristics[1]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 5
Observation arc	1 day
Aphelion	1.8769 AU
Perihelion	0.8188 AU
Semi-major axis	1.3478 AU
Eccentricity	0.3925
Orbital period (sidereal)	1.56 yr (571.547 d)
Mean anomaly	98.81126°
Mean motion	0° 37m 47.528s / day
Inclination	0.7012968°
Longitude of ascending node	106.7463°
Argument of perihelion	294.359°
Earth MOID	0.000140 AU (0.054 LD)
Physical characteristics
Mean diameter	1–2 m (3.3–6.6 ft)
Absolute magnitude (H)	32.243[1]

As of July 2019^[update], it is the closest approach of a non-impacting asteroid in 2019.^[3] 2019 MO impacted Earth on 22 June 2019.

See also

• List of asteroid close approaches to Earth in 2019