Asteroids

2022AO2 help

Last update: 2025-12-09 11:05 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.944

Aphelion (Q)

1.020

Eccentricity (e)

0.039

Inclination (i)

32.5

deg

Orbit period (P)

355.6

Earth MOID

0.02394

U parameter

8.4

Next Earth close approach

Date

2058-01-10

Nominal distance (from Earth center)

0.1172

17532362

Maximum Brightness

22.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.1

mag

Diameter

40 - 90*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-01-06

Observatory

Mt. Lemmon Survey

ORBIT VISUALISATION TOOLS

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Long. of Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion distance
Aphelion distance
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.982373

1-sigma variation

0.000942

Unit

Eccentricity (e)

Value

0.038796

1-sigma variation

0.000589

Unit

Inclination (i)

Value

32.5062

1-sigma variation

0.1066

Unit

Long. of Ascending Node (Ω)

Value

107.5139

1-sigma variation

0.0113

Unit

Arg. of Perihelion (ω)

Value

226.8745

1-sigma variation

1.0318

Unit

Mean Anomaly (M)

Value

123.21242

1-sigma variation

3.13011

Unit

Perihelion distance

Value

0.944261

1-sigma variation

Unit

Aphelion distance

Value

1.020484

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.023973

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.062503

1-sigma variation

Unit

MOID

Value

0.023939

1-sigma variation

Unit

Orbit Period

Value

355.6418

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.86854E-7	-5.54820E-7	1.00148E-4	1.05788E-5	9.71556E-4	-2.94767E-3
e	-5.54820E-7	3.47110E-7	-6.26699E-5	-6.62007E-6	-6.07762E-4	1.84402E-3
i	1.00148E-4	-6.26699E-5	1.13613E-2	1.20049E-3	1.09598E-1	-3.32741E-1
Ω	1.05788E-5	-6.62007E-6	1.20049E-3	1.26852E-4	1.15763E-2	-3.51473E-2
ω	9.71556E-4	-6.07762E-4	1.09598E-1	1.15763E-2	1.06461E0	-3.22948E0
M	-2.94767E-3	1.84402E-3	-3.32741E-1	-3.51473E-2	-3.22948E0	9.79758E0

Date of computation: 2025-12-09 11:05 UTC

Note: The ASCII file is in a format suitable for Orbfit input.

Download ASCII file:

Physical properties

Rotation Period
Quality
Amplitude
Rotation Direction
Spinvector L
Spinvector B

Rotational properties

Value

Unit

Source

Rotation Period

Value

Unit

Source

[-]

Quality

Value

Unit

Source

[-]

Amplitude

Value

Unit

mag

Source

[-]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

24.094

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

40 - 90*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

1453

Unit

Source

[1]

Normalized RMS of residuals

Value

0.391606

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-01-06.487776

Unit

Source

[2]

Last Observation

Value

2022-01-08.524062

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

28 (0)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Close Approaches for 2022AO2 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1983-01-11 14:21	> 1 d	0.1720529	0.0280150	0.3464727
EARTH	1984-01-08 16:17	> 1 d	0.0281561	0.0245623	0.1515976
EARTH	1984-07-11 05:25	> 1 w	0.0716846	0.0606121	0.1648596
EARTH	1985-01-05 02:28	> 1 d	0.1403264	0.0282734	0.2985348
EARTH	1985-07-03 13:40	> 1 w	0.1281357	0.0643907	0.2647156
EARTH	2021-01-09 14:52	213.8	0.0957501	0.0708089	0.0084451
EARTH	2021-07-15 16:14	388.9	0.1318438	0.1185499	0.0044329
EARTH	2022-01-06 22:28	< 1 min	0.0640092	0.0633687	0.0002135
EARTH	2022-07-08 00:23	409.1	0.0697903	0.0591598	0.0037858
EARTH	2023-06-30 05:22	1093.5	0.1982722	0.1600696	0.0128206
EARTH	2058-01-10 11:06	> 1 d	0.1171966	0.0262525	0.2986736
EARTH	2058-07-17 02:11	> 1 w	0.1503261	0.0656426	0.2789837
EARTH	2059-01-07 16:14	> 1 d	0.0463427	0.0247178	0.2596418
EARTH	2059-07-09 06:32	> 1 w	0.0635188	0.0613236	0.0777514
EARTH	2060-01-05 02:11	> 1 d	0.1967702	0.0316419	0.2976466
EARTH	2060-06-30 08:17	> 1 w	0.1845001	0.0700208	0.2752902
EARTH	2094-01-12 06:15	> 1 d	0.1966698	0.0270041	0.1302642
EARTH	2095-01-09 06:27	> 1 d	0.0445343	0.0241772	0.1052477
EARTH	2095-07-13 09:22	> 1 d	0.0848487	0.0594060	0.0829963
EARTH	2096-01-06 14:50	> 1 d	0.1184703	0.0279379	0.1098370
EARTH	2096-07-04 16:08	> 1 d	0.1111931	0.0662159	0.0834723

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
131.33847572	5.98969411	0.02393919	MINIMUM
314.41318278	186.04690075	0.06243966	MINIMUM
41.41380364	277.17248552	0.54814795	SADDLE
224.42091782	94.76424629	0.56311184	SADDLE
29.38441095	82.54222562	1.87379261	SADDLE
242.78478159	295.90947708	1.92132184	SADDLE
300.99365798	354.18238303	1.94221431	MAXIMUM
140.28610978	193.21294378	2.02775515	MAXIMUM

Download:

MOID Plots

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