Asteroids

2025WK5 help

Last update: 2025-11-29 13:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.831

Aphelion (Q)

1.113

Eccentricity (e)

0.145

Inclination (i)

9.9

deg

Orbit period (P)

350.0

Earth MOID

0.01347

U parameter

5.4

Next Earth close approach

Date

2047-06-07

Nominal distance (from Earth center)

0.09297

13908778

Maximum Brightness

30.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.1

mag

Diameter

6 - 14*

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

0.971968

1-sigma variation

0.000010

Unit

Eccentricity (e)

Value

0.144683

1-sigma variation

0.000075

Unit

Inclination (i)

Value

9.8932

1-sigma variation

0.0060

Unit

Long. of Ascending Node (Ω)

Value

63.7365

1-sigma variation

9.250E-6

Unit

Arg. of Perihelion (ω)

Value

111.1746

1-sigma variation

0.0028

Unit

Mean Anomaly (M)

Value

259.60748

1-sigma variation

0.01164

Unit

Perihelion distance

Value

0.831341

1-sigma variation

Unit

Aphelion distance

Value

1.112595

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.017113

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.110132

1-sigma variation

Unit

MOID

Value

0.013472

1-sigma variation

Unit

Orbit Period

Value

350.0068

1-sigma variation

Unit

U parameter

Value

5.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.86172E-11	7.41767E-10	5.88324E-8	-7.34274E-11	-2.72762E-8	1.15365E-7
e	7.41767E-10	5.64353E-9	4.48322E-7	-5.40320E-10	-2.03779E-7	8.73601E-7
i	5.88324E-8	4.48322E-7	3.56507E-5	-4.20945E-8	-1.61370E-5	6.93420E-5
Ω	-7.34274E-11	-5.40320E-10	-4.20945E-8	8.55538E-11	2.07449E-8	-8.50265E-8
ω	-2.72762E-8	-2.03779E-7	-1.61370E-5	2.07449E-8	7.57800E-6	-3.17866E-5
M	1.15365E-7	8.73601E-7	6.93420E-5	-8.50265E-8	-3.17866E-5	1.35498E-4

Date of computation: 2025-11-29 13:15 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

28.15

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

6 - 14*

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

0.7

Unit

Source

[1]

Normalized RMS of residuals

Value

0.578064

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-11-26.21558

Unit

Source

[2]

Last Observation

Value

2025-11-29.210953

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

33 (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 2025WK5 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	1957-06-27 23:23	129.8	0.1287813	0.1267753	0.0006808
EARTH	1958-05-11 06:47	1018.9	0.1496766	0.1466630	0.0010200
EARTH	1958-10-17 09:28	1371.8	0.1860896	0.1824065	0.0012399
EARTH	1959-11-29 16:15	25.8	0.0474353	0.0382238	0.0031028
EARTH	1979-06-13 15:14	1304.9	0.0908873	0.0906531	0.0003007
EARTH	1980-11-22 03:52	945.4	0.0932886	0.0800298	0.0044511
EARTH	1981-11-26 08:07	164.5	0.1762266	0.1615771	0.0048848
EARTH	2000-07-05 09:37	226.3	0.1877633	0.1825826	0.0017396
EARTH	2001-05-27 10:40	918.8	0.1159976	0.1134482	0.0008864
EARTH	2002-11-28 21:47	66.6	0.0189139	0.0155336	0.0012984
EARTH	2023-06-30 17:52	74.1	0.1472632	0.1462071	0.0003534
EARTH	2024-05-18 18:57	191.8	0.1316769	0.1309723	0.0002359
EARTH	2025-11-28 18:42	< 1 min	0.0138441	0.0138201	0.0000080
EARTH	2047-06-07 19:05	551.1	0.0929744	0.0918270	0.0004211
EARTH	2048-11-20 00:02	447.9	0.1039190	0.0983354	0.0018662
EARTH	2049-11-26 21:33	69.1	0.1443869	0.1380572	0.0021106
EARTH	2070-06-26 09:06	141.5	0.1202941	0.1182789	0.0006788
EARTH	2071-05-11 21:27	587.9	0.1474139	0.1460884	0.0004477
EARTH	2071-10-08 17:19	644.2	0.1945533	0.1928972	0.0005543
EARTH	2072-11-28 15:39	14.5	0.0171278	0.0154834	0.0006382
EARTH	2092-07-03 09:10	974.3	0.1684230	0.1451473	0.0081609
EARTH	2093-05-23 15:30	> 1 d	0.1248476	0.1124137	0.0050731
EARTH	2094-11-28 13:27	521.8	0.0233443	0.0146839	0.0088967
EARTH	2116-06-07 09:22	> 1 d	0.0954657	0.0906872	0.0069141
EARTH	2117-11-20 18:54	> 1 d	0.1029939	0.0380784	0.0243277
EARTH	2118-11-28 00:31	976.1	0.1456918	0.0607711	0.0285866

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
259.69725669	325.73715917	0.01347218	MINIMUM
79.88033543	161.17345819	0.08960597	MINIMUM
166.76693835	243.11094539	0.20578726	SADDLE
352.20735075	63.69555880	0.22198922	SADDLE
5.48033726	259.10765674	1.83046971	SADDLE
188.44519489	82.16236344	2.10324748	MAXIMUM

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MOID Plots

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