Asteroids

2022WD8 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.008

Aphelion (Q)

1.087

Eccentricity (e)

0.038

Inclination (i)

9.1

deg

Orbit period (P)

391.7

Earth MOID

0.02913

U parameter

7.3

Next Earth close approach

Date

2037-06-02

Nominal distance (from Earth center)

0.06993

10460844

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.2

mag

Diameter

16 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-11-26

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

1.047618

1-sigma variation

0.000229

Unit

Eccentricity (e)

Value

0.037681

1-sigma variation

0.000174

Unit

Inclination (i)

Value

9.0602

1-sigma variation

0.0306

Unit

Long. of Ascending Node (Ω)

Value

61.9001

1-sigma variation

0.0079

Unit

Arg. of Perihelion (ω)

Value

319.0133

1-sigma variation

0.0817

Unit

Mean Anomaly (M)

Value

324.53626

1-sigma variation

0.35841

Unit

Perihelion distance

Value

1.008143

1-sigma variation

Unit

Aphelion distance

Value

1.087094

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.029825

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.062667

1-sigma variation

Unit

MOID

Value

0.029128

1-sigma variation

Unit

Orbit Period

Value

391.6545

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.23194E-8	3.92602E-8	5.89172E-6	1.56678E-6	1.31340E-6	-7.99356E-5
e	3.92602E-8	3.04020E-8	3.91459E-6	1.05255E-6	3.47907E-6	-6.24166E-5
i	5.89172E-6	3.91459E-6	9.36664E-4	2.42867E-4	-1.19887E-3	-7.68741E-3
Ω	1.56678E-6	1.05255E-6	2.42867E-4	6.30741E-5	-2.88155E-4	-2.07423E-3
ω	1.31340E-6	3.47907E-6	-1.19887E-3	-2.88155E-4	6.67796E-3	-8.49039E-3
M	-7.99356E-5	-6.24166E-5	-7.68741E-3	-2.07423E-3	-8.49039E-3	1.28455E-1

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

26.17

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

16 - 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

[-]

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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

1070

Unit

Source

[1]

Normalized RMS of residuals

Value

0.480611

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-11-26.383351

Unit

Source

[2]

Last Observation

Value

2022-11-28.479272

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

18 (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 2022WD8 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	1950-06-06 13:42	> 1 w	0.0825737	0.0616559	0.0313237
EARTH	1950-11-22 20:49	> 1 d	0.0302457	0.0299238	0.0040282
EARTH	1965-04-24 11:46	> 1 w	0.1545256	0.1166356	0.0184127
EARTH	1979-06-01 17:16	179.8	0.0661242	0.0654681	0.0002515
EARTH	1979-11-21 09:53	71.0	0.0484327	0.0468375	0.0005345
EARTH	1993-06-11 00:23	> 1 d	0.1096037	0.0763070	0.0234440
EARTH	1993-11-23 22:07	> 1 d	0.0462108	0.0296233	0.0247088
EARTH	2008-05-16 00:21	> 1 d	0.0923958	0.0735595	0.0154825
EARTH	2008-11-18 07:19	321.2	0.1510745	0.0733952	0.0268999
EARTH	2022-06-10 15:22	134.0	0.1101608	0.1084476	0.0005711
EARTH	2022-11-24 06:41	13.5	0.0487290	0.0482268	0.0001674
EARTH	2037-06-02 06:03	> 1 d	0.0699264	0.0641664	0.0112942
EARTH	2037-11-21 06:26	1403.0	0.0360463	0.0276800	0.0193516
EARTH	2052-04-28 05:52	> 1 w	0.1424620	0.1037173	0.0719060
EARTH	2066-06-06 07:34	> 1 w	0.0865738	0.0701331	0.0596035
EARTH	2066-11-22 03:36	> 1 d	0.0271831	0.0269938	0.0011021
EARTH	2081-05-09 05:07	> 1 mo	0.1117998	0.0834938	0.8733204
EARTH	2081-11-18 12:50	> 1 d	0.1922915	0.0374099	1.4592670
EARTH	2095-06-10 09:18	> 1 mo	0.1083038	0.0772719	1.0628887
EARTH	2095-11-23 09:13	> 1 mo	0.0387852	0.0270390	1.1182437
EARTH	2110-06-08 09:47	> 1 mo	0.0958161	0.0730754	0.6599034
EARTH	2110-11-23 09:54	> 1 mo	0.0295266	0.0258021	0.5619025
EARTH	2125-12-12 15:20	> 1 mo	0.1957082	0.0724056	8.0151781

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
37.41159258	318.06149905	0.02907086	MINIMUM
227.69241157	144.21479349	0.06275135	MINIMUM
311.05417377	228.76272178	0.16088822	SADDLE
133.54125631	53.11512337	0.18331842	SADDLE
330.15479058	68.81536426	2.00153573	SADDLE
165.61539004	264.29277082	2.08289625	MAXIMUM

Download:

MOID Plots

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