2022 AE₁

2022 AE₁
Discovery
Discovered by	Mount Lemmon Survey
Discovery date	6 January 2022
Designations
MPC designation	2022 AE1
Minor planet category	NEO; Apollo; risk-listed;
Orbital characteristics
	Epoch 2022-Jan-08 (JD 2459587.5)
	Uncertainty parameter 8
Observation arc	6 days
Aphelion	2.28 AU (Q)
Perihelion	0.667 AU (q)
Semi-major axis	1.47 AU (a)
Eccentricity	0.547 (e)
Orbital period (sidereal)	1.79 years
Mean anomaly	32° (M)
Inclination	6.3° (i)
Longitude of ascending node	102.2° (Ω)
Time of perihelion	10 November 2021
Argument of perihelion	268.3° (ω)
Earth MOID	0.0003 AU (45 thousand km)
Jupiter MOID	3.2 AU (480 million km)
Physical characteristics
Dimensions	~72 m (200 ft); 54–120 meters;
Absolute magnitude (H)	23.45

2022 AE₁ is a Tunguska event-sized near-Earth asteroid that was discovered on 6 January 2022 when it was 0.09 AU (13 million km) from Earth.^[1] On 9 January 2022 with an observation arc of 3 days it was rated with a Torino scale of 1 for a virtual impactor on 4 July 2023.^[2]

2022 AE1 nominal approach for 4 July 2023 virtual impactor
Observation arc (in days)	JPL Horizons nominal geocentric distance (AU)	uncertainty region (3-sigma)	Impact probability (1 in)	Torino scale
2.9	0.024 AU (3.6 million km)^[5]	± 38 million km^[5]	2900	1
5.9	0.043 AU (6.4 million km)^[6]	± 31 million km^[6]	1800^[2]	1^[2]

It came to perihelion (closest approach to the Sun) on 10 November 2021, and then approached Earth from the direction of the Sun making closest Earth approach on 31 December 2021 at distance of about 10 million km.^[3]

References

^ ^a ^b "MPEC 2022-A56 : 2022 AE1". IAU Minor Planet Center. 7 January 2022. Retrieved 10 January 2022. (K22A01E)
^ ^a ^b ^c ^d ^e "Sentry Risk Table: 2022 AE1". NASA JPL CNEOS. Archived from the original on 10 January 2022.
^ ^a ^b "JPL Small-Body Database Browser: (2022 AE1)". Jet Propulsion Laboratory. Retrieved 10 January 2022.
^ "2022 AE1 Orbit". Minor Planet Center. Retrieved 10 January 2022.
^ ^a ^b "JPL Horizons Archive: 2022 AE1 geocentric distance and uncertainty with 2.9 day arc". JPL Horizons. Archived from the original on 10 January 2022.
^ ^a ^b "JPL Horizons Archive: 2022 AE1 geocentric distance and uncertainty with 5.8 day arc". JPL Horizons. Archived from the original on 10 January 2022.

External links

2022 AE1 at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
2022 AE1 at ESA–space situational awareness
- Ephemerides · Observations · Orbit · Physical properties · Summary
2022 AE1 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

[MPEC2022-A56-1] "MPEC 2022-A56 : 2022 AE1". IAU Minor Planet Center. 7 January 2022. Retrieved 10 January 2022. (K22A01E)

[risk-2] "Sentry Risk Table: 2022 AE1". NASA JPL CNEOS. Archived from the original on 10 January 2022.

[jpldata-3] "JPL Small-Body Database Browser: (2022 AE1)". Jet Propulsion Laboratory. Retrieved 10 January 2022.

[MPC-object-4] "2022 AE1 Orbit". Minor Planet Center. Retrieved 10 January 2022.

[arc3-5] "JPL Horizons Archive: 2022 AE1 geocentric distance and uncertainty with 2.9 day arc". JPL Horizons. Archived from the original on 10 January 2022.

[arc6-6] "JPL Horizons Archive: 2022 AE1 geocentric distance and uncertainty with 5.8 day arc". JPL Horizons. Archived from the original on 10 January 2022.

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