Asteroids

2022WD1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.864

Aphelion (Q)

1.619

Eccentricity (e)

0.304

Inclination (i)

20.3

deg

Orbit period (P)

505.2

Earth MOID

0.04207

U parameter

8.3

Next Earth close approach

Date

2034-04-29

Nominal distance (from Earth center)

0.15866

23735065

Maximum Brightness

23.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.7

mag

Diameter

19 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-11-18

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

1.241467

1-sigma variation

0.001316

Unit

Eccentricity (e)

Value

0.303794

1-sigma variation

0.000786

Unit

Inclination (i)

Value

20.2517

1-sigma variation

0.0435

Unit

Long. of Ascending Node (Ω)

Value

54.2586

1-sigma variation

0.0008

Unit

Arg. of Perihelion (ω)

Value

74.3529

1-sigma variation

0.0486

Unit

Mean Anomaly (M)

Value

20.84188

1-sigma variation

1.14038

Unit

Perihelion distance

Value

0.864316

1-sigma variation

Unit

Aphelion distance

Value

1.618617

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.052686

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.214928

1-sigma variation

Unit

MOID

Value

0.042068

1-sigma variation

Unit

Orbit Period

Value

505.2439

1-sigma variation

Unit

U parameter

Value

8.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.73126E-6	1.03333E-6	5.72676E-5	1.10074E-6	-6.38058E-5	-1.50048E-3
e	1.03333E-6	6.17023E-7	3.41735E-5	6.56993E-7	-3.80341E-5	-8.95599E-4
i	5.72676E-5	3.41735E-5	1.89458E-3	3.64113E-5	-2.11200E-3	-4.96336E-2
Ω	1.10074E-6	6.56993E-7	3.64113E-5	6.99873E-7	-4.05672E-5	-9.54009E-4
ω	-6.38058E-5	-3.80341E-5	-2.11200E-3	-4.05672E-5	2.36078E-3	5.52983E-2
M	-1.50048E-3	-8.95599E-4	-4.96336E-2	-9.54009E-4	5.52983E-2	1.30047E0

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

25.734

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

19 - 40*

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

1039

Unit

Source

[1]

Normalized RMS of residuals

Value

0.655123

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-11-16.325068

Unit

Source

[2]

Last Observation

Value

2022-11-18.85945

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

18 (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 2022WD1 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	1951-04-28 21:14	192.8	0.1585700	0.1578166	0.0214268
EARTH	1957-11-19 11:07	> 1 w	0.0475253	0.0408823	0.0998570
EARTH	1969-04-28 22:52	> 1 d	0.1660169	0.1576182	0.0733245
EARTH	1975-11-15 16:25	> 1 w	0.1391621	0.0383907	0.2665712
EARTH	2004-11-24 02:20	> 1 d	0.1177173	0.0395377	0.1686858
EARTH	2016-04-28 17:31	1013.0	0.1681248	0.1568359	0.0241325
EARTH	2022-11-20 19:50	< 1 min	0.0422722	0.0419914	0.0000936
EARTH	2034-04-29 03:52	> 1 d	0.1586591	0.1553797	0.0210802
EARTH	2040-11-16 08:36	> 1 w	0.1118376	0.0408955	0.1696852
EARTH	2069-11-26 09:28	> 1 d	0.1872236	0.0379834	0.2777235
EARTH	2087-11-24 15:47	> 1 w	0.1090043	0.0420140	0.2198040
EARTH	2099-04-30 09:13	> 1 d	0.1869383	0.1543431	0.0854060
EARTH	2105-11-24 19:57	> 1 d	0.0977809	0.0432910	0.0979984
EARTH	2123-11-27 03:52	> 1 d	0.1562481	0.0389271	0.0566279

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
305.59192362	316.51394820	0.04205930	MINIMUM
71.01592193	115.24807338	0.15514343	MINIMUM
11.05862693	40.70089376	0.34633144	SADDLE
187.05809187	211.19329165	0.74679436	SADDLE
4.07443525	210.71169825	1.85102956	SADDLE
178.31525647	24.35800664	2.56853212	MAXIMUM

Download:

MOID Plots

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