Asteroids

2025WN1 help

Last update: 2025-11-28 13:01 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.766

Aphelion (Q)

1.008

Eccentricity (e)

0.137

Inclination (i)

2.6

deg

Orbit period (P)

305.0

Earth MOID

0.00691

U parameter

6.8

Next Earth close approach

Date

2025-12-03

Nominal distance (from Earth center)

0.02842

4251989

Maximum Brightness

18.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.6

mag

Diameter

30 - 70*

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

0.886672

1-sigma variation

0.000066

Unit

Eccentricity (e)

Value

0.136513

1-sigma variation

0.000099

Unit

Inclination (i)

Value

2.6010

1-sigma variation

0.0017

Unit

Long. of Ascending Node (Ω)

Value

96.3803

1-sigma variation

0.0042

Unit

Arg. of Perihelion (ω)

Value

137.7379

1-sigma variation

0.0040

Unit

Mean Anomaly (M)

Value

186.40564

1-sigma variation

0.00479

Unit

Perihelion distance

Value

0.765630

1-sigma variation

Unit

Aphelion distance

Value

1.007715

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.015551

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.227868

1-sigma variation

Unit

MOID

Value

0.006913

1-sigma variation

Unit

Orbit Period

Value

304.9603

1-sigma variation

Unit

U parameter

Value

6.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.33203E-9	-6.51212E-9	-1.11173E-7	-9.09443E-8	-2.09336E-7	2.86254E-7
e	-6.51212E-9	9.78981E-9	1.67295E-7	1.34159E-7	3.16220E-7	-4.28983E-7
i	-1.11173E-7	1.67295E-7	2.92251E-6	1.29108E-6	6.01911E-6	-6.82941E-6
Ω	-9.09443E-8	1.34159E-7	1.29108E-6	1.77141E-5	-5.41810E-6	-1.38280E-5
ω	-2.09336E-7	3.16220E-7	6.01911E-6	-5.41810E-6	1.63039E-5	-9.10370E-6
M	2.86254E-7	-4.28983E-7	-6.82941E-6	-1.38280E-5	-9.10370E-6	2.29474E-5

Date of computation: 2025-11-28 13:01 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

24.65

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

30 - 70*

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

0.325507

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-11-21.923244

Unit

Source

[2]

Last Observation

Value

2025-11-27.412081

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

38 (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 2025WN1 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	1952-08-19 16:11	> 1 w	0.1467089	0.1326100	0.0047264
EARTH	1952-12-23 21:51	> 1 d	0.0189358	0.0087876	0.0065286
VENUS	1955-10-17 22:33	> 1 d	0.0435573	0.0433778	0.0002664
EARTH	1957-10-13 12:33	382.2	0.0662110	0.0558441	0.0037104
EARTH	1958-02-26 15:40	> 1 w	0.1658079	0.1575585	0.0027524
EARTH	1973-08-12 18:23	> 1 d	0.1625596	0.1612714	0.0004304
EARTH	1973-12-27 06:28	4.7	0.0433792	0.0409332	0.0008155
EARTH	1978-10-16 22:07	129.5	0.0491440	0.0477921	0.0004724
EARTH	1979-02-17 03:33	> 1 d	0.1518674	0.1498279	0.0006805
EARTH	1994-07-26 11:40	1074.8	0.1898201	0.1892415	0.0001933
EARTH	1994-12-28 10:18	51.5	0.1060633	0.1047220	0.0004471
EARTH	1999-10-30 23:03	191.7	0.0402933	0.0401234	0.0000570
EARTH	2020-08-11 19:25	> 1 d	0.1661038	0.1613425	0.0016011
EARTH	2020-12-26 23:50	106.8	0.0601491	0.0498233	0.0034437
EARTH	2025-12-03 04:41	1.9	0.0284228	0.0283607	0.0000207
EARTH	2030-10-14 15:18	30.8	0.1047558	0.0954212	0.0031460
EARTH	2031-03-11 06:28	> 1 d	0.1835761	0.1794463	0.0013766
EARTH	2046-12-25 15:07	139.1	0.1803219	0.1598731	0.0068163
EARTH	2051-12-16 09:25	> 1 d	0.0136550	0.0050181	0.0036107
EARTH	2067-10-13 16:09	> 1 d	0.0717240	0.0456546	0.0862464
EARTH	2068-02-27 09:32	> 1 mo	0.1635276	0.0219408	0.0601548
EARTH	2078-11-11 20:42	> 1 d	0.0412684	0.0395683	0.0005772
EARTH	2089-10-14 00:03	> 1 w	0.0564053	0.0464354	0.0606243
EARTH	2090-02-21 17:18	> 1 mo	0.1545153	0.0261718	0.0692635
EARTH	2095-12-25 22:53	> 1 d	0.1987753	0.0021747	0.1158453
EARTH	2106-09-03 01:48	> 1 mo	0.1336867	0.0778182	0.0303421
EARTH	2106-12-22 00:34	> 1 w	0.0025323	0.0024900	0.0055629
EARTH	2112-07-17 04:44	> 1 mo	0.1830891	0.1517339	5.5289353
EARTH	2112-12-27 08:00	> 1 mo	0.1336869	0.0046881	19.2441466

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
219.06692564	347.40691398	0.00691283	MINIMUM
4.77615949	137.43657390	0.24873017	SADDLE
5.89347234	318.76194215	1.75381136	SADDLE
185.06372186	137.92890457	2.02061769	MAXIMUM

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MOID Plots

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