Asteroids

2022UO help

Last update: 2026-07-30 14:25 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.905

Aphelion (Q)

1.128

Eccentricity (e)

0.110

Inclination (i)

30.0

deg

Orbit period (P)

374.2

Earth MOID

0.03192

U parameter

8.4

Next Earth close approach

Date

2063-10-15

Nominal distance (from Earth center)

0.11817

17677721

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.4

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-10-17

Observatory

University of Arizona 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.016275

1-sigma variation

0.001011

Unit

Eccentricity (e)

Value

0.109751

1-sigma variation

0.000346

Unit

Inclination (i)

Value

29.9882

1-sigma variation

0.0824

Unit

Long. of Ascending Node (Ω)

Value

22.8512

1-sigma variation

0.0016

Unit

Arg. of Perihelion (ω)

Value

108.6500

1-sigma variation

0.2488

Unit

Mean Anomaly (M)

Value

105.24265

1-sigma variation

1.37812

Unit

Perihelion distance

Value

0.904737

1-sigma variation

Unit

Aphelion distance

Value

1.127812

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.043112

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.032372

1-sigma variation

Unit

MOID

Value

0.031916

1-sigma variation

Unit

Orbit Period

Value

374.2097

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.02306E-6	9.30729E-8	8.32312E-5	1.61281E-6	-2.49877E-4	-1.39295E-3
e	9.30729E-8	1.19723E-7	6.14533E-6	9.29808E-8	-3.24963E-5	-1.09581E-4
i	8.32312E-5	6.14533E-6	6.79101E-3	1.31916E-4	-2.02028E-2	-1.13545E-1
Ω	1.61281E-6	9.29808E-8	1.31916E-4	2.56878E-6	-3.89198E-4	-2.20423E-3
ω	-2.49877E-4	-3.24963E-5	-2.02028E-2	-3.89198E-4	6.18889E-2	3.38717E-1
M	-1.39295E-3	-1.09581E-4	-1.13545E-1	-2.20423E-3	3.38717E-1	1.89923E0

Date of computation: 2026-07-30 14:25 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

26.446

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

14 - 30*

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

0.7

Unit

Source

[1]

Unobserved

Value

1472

Unit

Source

[1]

Normalized RMS of residuals

Value

0.66023

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-10-17.273279

Unit

Source

[2]

Last Observation

Value

2022-10-17.960054

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

24 (1)

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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2022UO from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1979-10-16 08:57	> 1 d	0.0812864	0.0439519	0.2033856
EARTH	1980-10-17 14:18	> 1 d	0.0813883	0.0423527	0.2183782
EARTH	1982-04-10 19:09	> 1 w	0.0688875	0.0325247	0.2476994
EARTH	1983-04-17 11:36	> 1 w	0.0877444	0.0325035	0.2630493
EARTH	2021-10-14 15:55	223.8	0.1466098	0.1255128	0.0070878
EARTH	2022-10-17 08:41	4.6	0.0426485	0.0422863	0.0001207
EARTH	2023-10-19 02:30	101.9	0.1475127	0.1266251	0.0070202
EARTH	2024-04-07 07:16	647.5	0.1353847	0.1065646	0.0096275
EARTH	2025-04-14 00:25	1071.2	0.0348964	0.0330440	0.0053264
EARTH	2026-04-21 00:32	> 1 d	0.1643924	0.0903017	0.0255726
EARTH	2063-10-15 21:44	> 1 d	0.1181683	0.0450595	0.3517588
EARTH	2064-10-17 09:29	> 1 d	0.0537671	0.0430715	0.2283387
EARTH	2065-10-18 22:40	> 1 d	0.1798787	0.0504846	0.3729091
EARTH	2066-04-09 11:47	> 1 w	0.1008102	0.0332113	0.3890094
EARTH	2067-04-16 08:19	> 1 w	0.0607782	0.0322984	0.3480571
EARTH	2104-10-15 00:12	> 1 d	0.1774095	0.0486910	0.1632398
EARTH	2105-10-17 21:56	> 1 d	0.0508676	0.0431731	0.0956971
EARTH	2106-10-19 21:14	> 1 d	0.1210231	0.0438687	0.1861451
EARTH	2107-04-07 23:58	> 1 w	0.1635387	0.0372611	0.1961525
EARTH	2108-04-13 18:13	> 1 w	0.0351042	0.0318977	0.0858178
EARTH	2109-04-20 13:40	> 1 w	0.1339728	0.0345226	0.2474077

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
66.07172896	98.00247987	0.03191553	MINIMUM
258.35126561	280.12771297	0.04232260	MINIMUM
343.02618663	7.97317193	0.49504808	SADDLE
161.06000545	190.54113291	0.56227486	SADDLE
350.94966795	197.91503968	1.85847899	SADDLE
220.73171362	68.45328757	2.07306953	MAXIMUM

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MOID Plots

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