Asteroids

2022UO12 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.683

Aphelion (Q)

2.696

Eccentricity (e)

0.596

Inclination (i)

3.3

deg

Orbit period (P)

802.2

Earth MOID

0.00135

U parameter

7.8

Next Earth close approach

Date

2033-10-21

Nominal distance (from Earth center)

0.12369

18503534

Maximum Brightness

26.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.3

mag

Diameter

6 - 13*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-10-26

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

1.689598

1-sigma variation

0.001297

Unit

Eccentricity (e)

Value

0.595600

1-sigma variation

0.000406

Unit

Inclination (i)

Value

3.3333

1-sigma variation

0.0024

Unit

Long. of Ascending Node (Ω)

Value

214.1931

1-sigma variation

0.0018

Unit

Arg. of Perihelion (ω)

Value

262.0446

1-sigma variation

0.0029

Unit

Mean Anomaly (M)

Value

210.33501

1-sigma variation

0.68202

Unit

Perihelion distance

Value

0.683273

1-sigma variation

Unit

Aphelion distance

Value

2.695924

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.183385

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.012363

1-sigma variation

Unit

MOID

Value

0.001352

1-sigma variation

Unit

Orbit Period

Value

802.1834

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.68135E-6	5.26453E-7	3.06909E-6	2.37812E-6	-3.71983E-6	-8.84350E-4
e	5.26453E-7	1.64841E-7	9.61041E-7	7.44609E-7	-1.16439E-6	-2.76903E-4
i	3.06909E-6	9.61041E-7	5.60585E-6	4.34052E-6	-6.77523E-6	-1.61427E-3
Ω	2.37812E-6	7.44609E-7	4.34052E-6	3.36382E-6	-5.26436E-6	-1.25084E-3
ω	-3.71983E-6	-1.16439E-6	-6.77523E-6	-5.26436E-6	8.30662E-6	1.95655E-3
M	-8.84350E-4	-2.76903E-4	-1.61427E-3	-1.25084E-3	1.95655E-3	4.65148E-1

Date of computation: 2026-03-17 23:26 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

28.251

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

6 - 13*

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

1312

Unit

Source

[1]

Normalized RMS of residuals

Value

0.410173

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-10-26.271335

Unit

Source

[2]

Last Observation

Value

2022-10-29.304593

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

26 (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

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 2022UO12 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	1955-10-22 09:11	736.2	0.1082297	0.0830678	0.0083873
EARTH	1958-03-17 06:45	> 1 d	0.1903481	0.1536372	0.0122422
EARTH	2009-11-17 03:25	> 1 w	0.1751300	0.0068628	0.0662765
EARTH	2012-04-14 01:23	> 1 d	0.0917981	0.0160659	0.0741628
VENUS	2020-10-04 09:54	> 1 d	0.0482768	0.0335806	0.0099478
EARTH	2022-10-29 15:12	< 1 s	0.0032518	0.0032449	0.0000023
EARTH	2025-04-15 14:03	1274.7	0.1306850	0.0816930	0.0164043
MARS	2027-08-22 11:26	> 1 d	0.0398872	0.0373606	0.0087647
EARTH	2033-10-21 22:17	> 1 d	0.1236885	0.0011715	0.0829348
EARTH	2036-04-08 01:54	> 1 d	0.0177531	0.0162063	0.0380420
EARTH	2044-10-18 09:10	> 1 mo	0.1860713	0.0007501	0.6774276
EARTH	2047-04-05 17:17	> 1 mo	0.0418591	0.0157651	0.7360149
EARTH	2058-03-22 01:38	> 1 mo	0.1656050	0.0109553	0.1922881
4 Vesta	2109-02-27 09:33	> 1 w	0.0100356	0.0027405	1.4386737

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
313.75390493	295.21348117	0.00139671	MINIMUM
47.07050272	95.69758925	0.01642425	MINIMUM
0.62965247	15.77400708	0.30459362	SADDLE
180.15268639	195.08461714	1.68102974	SADDLE
0.55567480	195.61756235	1.70011567	SADDLE
180.11735001	15.06346815	3.67882011	MAXIMUM

Download:

MOID Plots

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