Asteroids

2022UT8 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.689

Aphelion (Q)

1.008

Eccentricity (e)

0.188

Inclination (i)

1.6

deg

Orbit period (P)

285.5

Earth MOID

0.00703

U parameter

6.6

Next Earth close approach

Date

2029-10-06

Nominal distance (from Earth center)

0.07642

11432641

Maximum Brightness

21.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.5

mag

Diameter

50 - 120*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-10-21

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

0.848464

1-sigma variation

0.000047

Unit

Eccentricity (e)

Value

0.188243

1-sigma variation

0.000077

Unit

Inclination (i)

Value

1.6410

1-sigma variation

0.0008

Unit

Long. of Ascending Node (Ω)

Value

8.5453

1-sigma variation

0.0060

Unit

Arg. of Perihelion (ω)

Value

212.8225

1-sigma variation

0.0039

Unit

Mean Anomaly (M)

Value

148.93967

1-sigma variation

0.11708

Unit

Perihelion distance

Value

0.688747

1-sigma variation

Unit

Aphelion distance

Value

1.008182

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.029275

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.293057

1-sigma variation

Unit

MOID

Value

0.007027

1-sigma variation

Unit

Orbit Period

Value

285.4623

1-sigma variation

Unit

U parameter

Value

6.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.20690E-9	-3.59658E-9	-3.66417E-8	-2.83068E-7	1.83143E-7	-5.50032E-6
e	-3.59658E-9	5.86136E-9	5.97160E-8	4.61335E-7	-2.98488E-7	8.96387E-6
i	-3.66417E-8	5.97160E-8	6.08644E-7	4.70497E-6	-3.04586E-6	9.13233E-5
Ω	-2.83068E-7	4.61335E-7	4.70497E-6	3.64126E-5	-2.35950E-5	7.05503E-4
ω	1.83143E-7	-2.98488E-7	-3.04586E-6	-2.35950E-5	1.53027E-5	-4.56458E-4
M	-5.50032E-6	8.96387E-6	9.13233E-5	7.05503E-4	-4.56458E-4	1.37086E-2

Date of computation: 2025-09-10 00:30 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

23.486

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

50 - 120*

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

1025

Unit

Source

[1]

Normalized RMS of residuals

Value

0.419303

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-10-21.468221

Unit

Source

[2]

Last Observation

Value

2022-11-27.8239

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

68 (2)

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 2022UT8 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	1955-11-12 20:36	> 1 w	0.0246368	0.0241601	0.0022863
EARTH	1962-11-28 13:12	> 1 d	0.0302569	0.0274560	0.0051231
EARTH	1969-12-05 17:51	115.6	0.1342834	0.1141532	0.0068058
EARTH	1979-10-06 23:25	58.7	0.1841330	0.1608723	0.0077553
EARTH	1986-10-06 04:01	673.1	0.0675701	0.0328785	0.0115667
EARTH	1993-10-13 00:02	949.1	0.0077682	0.0056964	0.0012148
VENUS	2001-03-26 07:06	444.2	0.0399532	0.0393471	0.0002086
EARTH	2004-12-08 08:46	70.9	0.0929817	0.0885173	0.0014913
VENUS	2009-11-01 00:26	1334.9	0.0369614	0.0365742	0.0005624
EARTH	2011-10-07 23:33	521.7	0.0445901	0.0280464	0.0055292
EARTH	2012-01-27 01:30	> 1 w	0.1845165	0.1717226	0.0042828
VENUS	2018-06-25 14:43	> 1 d	0.0449513	0.0428150	0.0007808
EARTH	2022-12-02 22:15	< 1 min	0.0284951	0.0284589	0.0000121
VENUS	2027-01-24 15:11	962.4	0.0395030	0.0380234	0.0006569
EARTH	2029-10-06 09:41	185.3	0.0764225	0.0622448	0.0047276
EARTH	2040-12-08 10:34	13.5	0.1267233	0.1112931	0.0051576
VENUS	2047-07-15 07:39	105.9	0.0363752	0.0338152	0.0008556
EARTH	2047-10-29 18:52	436.0	0.0209180	0.0199881	0.0003106
EARTH	2054-10-06 17:13	172.6	0.1730608	0.1482604	0.0082671
VENUS	2056-01-31 12:51	> 1 d	0.0432763	0.0276275	0.0053075
VENUS	2064-07-28 11:01	795.7	0.0451788	0.0389729	0.0031261
EARTH	2065-08-16 14:45	> 1 w	0.1942436	0.1850733	0.0030600
EARTH	2065-12-07 10:49	262.8	0.0669111	0.0561212	0.0036462
EARTH	2072-11-15 01:58	> 1 d	0.0231235	0.0227455	0.0003004
VENUS	2076-04-13 03:55	> 1 d	0.0430994	0.0400132	0.0033071
EARTH	2079-10-11 13:48	> 1 d	0.0157316	0.0079764	0.0133858
EARTH	2090-08-22 16:06	> 1 mo	0.1860170	0.0508388	0.0972818
EARTH	2090-12-08 04:41	> 1 d	0.0562820	0.0203980	0.1106080
EARTH	2097-10-08 12:08	> 1 d	0.0425076	0.0132828	0.0127697
EARTH	2098-01-22 20:40	> 1 mo	0.1786961	0.1276614	0.0170261
EARTH	2108-08-15 21:06	> 1 mo	0.1950755	0.0290511	0.1216361
EARTH	2108-12-09 18:49	> 1 d	0.0698882	0.0224131	0.1725337
EARTH	2115-10-09 22:49	> 1 d	0.0495792	0.0081539	0.0463128
EARTH	2116-01-30 02:44	> 1 mo	0.1842158	0.0823246	0.0345299

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
156.51954901	280.55404984	0.00688726	MINIMUM
205.91912946	321.24378233	0.02360962	MINIMUM
191.51519762	309.36188551	0.02466496	SADDLE
6.21864936	125.52667855	0.32018562	SADDLE
5.82344097	305.06354093	1.67989017	SADDLE
184.03282318	123.23910961	2.01647381	MAXIMUM

Download:

MOID Plots

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