Asteroids

2025WW3 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.929

Aphelion (Q)

1.586

Eccentricity (e)

0.261

Inclination (i)

2.5

deg

Orbit period (P)

515.0

Earth MOID

0.00026

U parameter

5.7

Next Earth close approach

Date

2040-03-30

Nominal distance (from Earth center)

0.15641

23398042

Maximum Brightness

27.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.9

mag

Diameter

4 - 10*

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

1.257466

1-sigma variation

0.000030

Unit

Eccentricity (e)

Value

0.261392

1-sigma variation

0.000023

Unit

Inclination (i)

Value

2.5180

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

64.2240

1-sigma variation

4.260E-5

Unit

Arg. of Perihelion (ω)

Value

43.9017

1-sigma variation

0.0009

Unit

Mean Anomaly (M)

Value

330.31490

1-sigma variation

0.00098

Unit

Perihelion distance

Value

0.928774

1-sigma variation

Unit

Aphelion distance

Value

1.586158

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.000900

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.428476

1-sigma variation

Unit

MOID

Value

0.000265

1-sigma variation

Unit

Orbit Period

Value

515.0424

1-sigma variation

Unit

U parameter

Value

5.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.18435E-10	6.84539E-10	7.84299E-9	-1.28191E-9	2.53349E-8	2.97316E-8
e	6.84539E-10	5.10354E-10	5.85209E-9	-9.56751E-10	1.89465E-8	2.21288E-8
i	7.84299E-9	5.85209E-9	6.73649E-8	-1.10402E-8	2.19225E-7	2.52504E-7
Ω	-1.28191E-9	-9.56751E-10	-1.10402E-8	1.81503E-9	-3.59472E-8	-4.12187E-8
ω	2.53349E-8	1.89465E-8	2.19225E-7	-3.59472E-8	7.26869E-7	8.06457E-7
M	2.97316E-8	2.21288E-8	2.52504E-7	-4.12187E-8	8.06457E-7	9.69160E-7

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

28.881

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

4 - 10*

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

0.8

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.870296

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-11-25.335082

Unit

Source

[2]

Last Observation

Value

2025-11-26.154117

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

35 (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 2025WW3 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	1956-11-17 18:59	> 1 d	0.0509844	0.0027527	0.0254027
EARTH	1964-02-17 11:13	> 1 d	0.0448327	0.0433983	0.0017933
EARTH	1987-11-13 05:47	282.1	0.1090051	0.1007514	0.0027514
EARTH	1995-01-13 03:08	> 1 d	0.0619746	0.0618484	0.0000818
EARTH	2002-03-09 19:40	417.9	0.1437246	0.1294863	0.0047734
EARTH	2025-11-25 21:58	< 1 s	0.0010808	0.0010806	0.0000001
MARS	2027-12-09 08:00	286.0	0.0435364	0.0432962	0.0000801
EARTH	2040-03-30 23:14	275.4	0.1564062	0.1448456	0.0038694
EARTH	2049-01-27 06:14	> 1 d	0.0856814	0.0854117	0.0001196
EARTH	2057-11-15 00:13	398.6	0.1118492	0.0975159	0.0047780
MARS	2059-11-17 05:20	1359.9	0.0275123	0.0228194	0.0015928
EARTH	2072-03-16 07:52	498.1	0.0496861	0.0487663	0.0004202
EARTH	2080-11-21 18:28	> 1 d	0.0296031	0.0002640	0.0104793
EARTH	2094-12-03 23:55	> 1 w	0.0337748	0.0010405	0.0917445
MARS	2095-08-02 00:20	> 1 d	0.0133019	0.0119691	0.0194375
EARTH	2109-03-25 16:56	> 1 mo	0.0681812	0.0477090	0.2874777
EARTH	2117-12-02 12:37	> 1 mo	0.0245762	0.0010438	0.4381456

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
325.39265519	323.11505430	0.00026474	MINIMUM
35.10135534	50.95536490	0.04350198	MINIMUM
4.56050439	12.52136197	0.06297975	SADDLE
180.66722325	187.38401690	0.56945904	SADDLE
0.62862155	187.47178458	1.94657665	SADDLE
180.19911519	7.01922802	2.56954268	MAXIMUM

Download:

MOID Plots

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