Asteroids

2022WD4 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.027

Aphelion (Q)

1.840

Eccentricity (e)

0.284

Inclination (i)

15.5

deg

Orbit period (P)

627.1

Earth MOID

0.03943

U parameter

8.2

Next Earth close approach

Date

2034-11-29

Nominal distance (from Earth center)

0.12412

18567942

Maximum Brightness

24.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.7

mag

Diameter

12 - 27*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-11-21

Observatory

GINOP-KHK, Piszkesteto

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

1.433812

1-sigma variation

0.001850

Unit

Eccentricity (e)

Value

0.283549

1-sigma variation

0.000860

Unit

Inclination (i)

Value

15.5069

1-sigma variation

0.0318

Unit

Long. of Ascending Node (Ω)

Value

58.3909

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

2.5091

1-sigma variation

0.0085

Unit

Mean Anomaly (M)

Value

267.72562

1-sigma variation

1.20906

Unit

Perihelion distance

Value

1.027256

1-sigma variation

Unit

Aphelion distance

Value

1.840369

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.039433

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.826279

1-sigma variation

Unit

MOID

Value

0.039430

1-sigma variation

Unit

Orbit Period

Value

627.1002

1-sigma variation

Unit

U parameter

Value

8.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.42092E-6	1.59086E-6	5.88714E-5	-3.47271E-7	-1.53357E-5	-2.23625E-3
e	1.59086E-6	7.39808E-7	2.73774E-5	-1.61490E-7	-7.13198E-6	-1.03994E-3
i	5.88714E-5	2.73774E-5	1.01315E-3	-5.97338E-6	-2.64132E-4	-3.84839E-2
Ω	-3.47271E-7	-1.61490E-7	-5.97338E-6	3.58810E-8	1.51071E-6	2.27034E-4
ω	-1.53357E-5	-7.13198E-6	-2.64132E-4	1.51071E-6	7.28506E-5	1.00227E-2
M	-2.23625E-3	-1.03994E-3	-3.84839E-2	2.27034E-4	1.00227E-2	1.46183E0

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

26.674

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

12 - 27*

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

1033

Unit

Source

[1]

Normalized RMS of residuals

Value

0.441245

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-11-21.933139

Unit

Source

[2]

Last Observation

Value

2022-11-26.13471

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

34 (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 2022WD4 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	1955-11-25 05:13	> 1 w	0.0705227	0.0361532	0.2323351
EARTH	2010-11-13 16:15	> 1 w	0.1085210	0.0293990	0.1389548
EARTH	2022-11-21 04:55	< 1 min	0.0394366	0.0391664	0.0000901
EARTH	2034-11-29 07:54	> 1 w	0.1241190	0.0265414	0.1416845
EARTH	2077-11-07 21:38	> 1 w	0.1831901	0.0115023	0.3490398
EARTH	2089-11-18 04:06	> 1 w	0.0544722	0.0375663	0.2117460
EARTH	2101-11-23 06:39	> 1 w	0.0433122	0.0386122	0.1154169
EARTH	2113-12-01 23:17	> 1 mo	0.1469426	0.0211233	0.7864311

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
358.10801545	316.74716110	0.03933344	MINIMUM
179.50853243	137.87150368	0.82845651	SADDLE
357.89547904	136.49088447	2.03915684	SADDLE
178.75665313	317.33494627	2.82817919	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out