Asteroids

2025WK3 help

Last update: 2025-11-26 13:00 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.691

Aphelion (Q)

2.524

Eccentricity (e)

0.570

Inclination (i)

7.8

deg

Orbit period (P)

744.3

Earth MOID

0.00059

U parameter

7.1

Next Earth close approach

Date

2055-05-19

Nominal distance (from Earth center)

0.13492

20184002

Maximum Brightness

28.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

29.6

mag

Diameter

3 - 7*

Taxonomic type

Rotation period (T)

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

1.607248

1-sigma variation

0.000469

Unit

Eccentricity (e)

Value

0.570234

1-sigma variation

0.000157

Unit

Inclination (i)

Value

7.7946

1-sigma variation

0.0020

Unit

Long. of Ascending Node (Ω)

Value

64.2921

1-sigma variation

3.488E-5

Unit

Arg. of Perihelion (ω)

Value

79.7256

1-sigma variation

0.0003

Unit

Mean Anomaly (M)

Value

334.05273

1-sigma variation

0.01388

Unit

Perihelion distance

Value

0.690741

1-sigma variation

Unit

Aphelion distance

Value

2.523754

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.002241

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.192579

1-sigma variation

Unit

MOID

Value

0.000588

1-sigma variation

Unit

Orbit Period

Value

744.2566

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.20389E-7	7.37843E-8	9.26794E-7	2.28324E-9	-8.77057E-8	6.51818E-6
e	7.37843E-8	2.47029E-8	3.10330E-7	7.41513E-10	-2.92311E-8	2.18223E-6
i	9.26794E-7	3.10330E-7	3.90232E-6	7.26574E-9	-3.58012E-7	2.74106E-5
Ω	2.28324E-9	7.41513E-10	7.26574E-9	1.21632E-9	-6.17076E-9	6.75588E-8
ω	-8.77057E-8	-2.92311E-8	-3.58012E-7	-6.17076E-9	6.44747E-8	-2.59453E-6
M	6.51818E-6	2.18223E-6	2.74106E-5	6.75588E-8	-2.59453E-6	1.92780E-4

Date of computation: 2025-11-26 13:00 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

29.612

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

3 - 7*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.749204

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-11-24.427293

Unit

Source

[2]

Last Observation

Value

2025-11-25.881319

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

20 (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 2025WK3 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	1970-11-23 02:54	> 1 w	0.0507355	0.0037945	0.2764126
EARTH	1972-12-13 11:31	> 1 mo	0.1740549	0.0190415	0.2247445
EARTH	1981-05-08 13:43	> 1 w	0.0437042	0.0427327	0.0251145
EARTH	2025-11-26 08:54	< 1 min	0.0007597	0.0007590	0.0000002
EARTH	2055-05-19 12:20	> 1 d	0.1349217	0.0338034	0.0635293
EARTH	2057-04-22 11:22	> 1 w	0.1984451	0.0276545	0.0586407
EARTH	2062-11-22 21:51	> 1 d	0.0678532	0.0000991	0.0557933
EARTH	2092-05-21 17:49	> 1 d	0.1842886	0.0307626	0.1247185
EARTH	2094-05-03 04:15	> 1 w	0.1261371	0.0301798	0.1191161
EARTH	2099-11-30 05:28	> 1 w	0.0396536	0.0027077	0.1076963

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
312.60577002	323.32048314	0.00058751	MINIMUM
50.15132742	125.68259479	0.04045410	MINIMUM
2.11795769	45.67457368	0.31772574	SADDLE
180.56168832	223.18594067	1.52537893	SADDLE
1.60165822	224.67189135	1.70033970	SADDLE
180.30888848	43.04496521	3.50548367	MAXIMUM

Download:

MOID Plots

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