Asteroids

2025WC3 help

Last update: 2025-11-25 19:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.798

Aphelion (Q)

1.674

Eccentricity (e)

0.354

Inclination (i)

35.6

deg

Orbit period (P)

502.0

Earth MOID

0.01808

U parameter

8.3

Next Earth close approach

Date

2030-05-19

Nominal distance (from Earth center)

0.1594

23846441

Maximum Brightness

24.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

13 - 30*

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

1.236127

1-sigma variation

0.001527

Unit

Eccentricity (e)

Value

0.354115

1-sigma variation

0.000725

Unit

Inclination (i)

Value

35.6020

1-sigma variation

0.0489

Unit

Long. of Ascending Node (Ω)

Value

241.4628

1-sigma variation

0.0011

Unit

Arg. of Perihelion (ω)

Value

258.1887

1-sigma variation

0.0849

Unit

Mean Anomaly (M)

Value

316.11315

1-sigma variation

0.13378

Unit

Perihelion distance

Value

0.798396

1-sigma variation

Unit

Aphelion distance

Value

1.673858

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.151628

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.020582

1-sigma variation

Unit

MOID

Value

0.018082

1-sigma variation

Unit

Orbit Period

Value

501.9877

1-sigma variation

Unit

U parameter

Value

8.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.33261E-6	1.10793E-6	7.45276E-5	-1.71199E-6	-1.29717E-4	2.04318E-4
e	1.10793E-6	5.26252E-7	3.53920E-5	-8.13028E-7	-6.16098E-5	9.70454E-5
i	7.45276E-5	3.53920E-5	2.38642E-3	-5.47984E-5	-4.14521E-3	6.52791E-3
Ω	-1.71199E-6	-8.13028E-7	-5.47984E-5	1.25841E-6	9.52177E-5	-1.49955E-4
ω	-1.29717E-4	-6.16098E-5	-4.14521E-3	9.52177E-5	7.21393E-3	-1.13622E-2
M	2.04318E-4	9.70454E-5	6.52791E-3	-1.49955E-4	-1.13622E-2	1.78966E-2

Date of computation: 2025-11-25 19:30 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

26.507

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

13 - 30*

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

0.566755

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-11-24.175831

Unit

Source

[2]

Last Observation

Value

2025-11-25.239572

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

13 (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 2025WC3 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	1955-11-17 23:04	> 1 w	0.1797638	0.0138570	0.2550507
EARTH	1960-05-15 03:02	> 1 d	0.1775509	0.1296426	0.1692639
EARTH	2003-11-30 02:17	> 1 d	0.1467787	0.0153610	0.1932281
EARTH	2014-11-27 00:28	> 1 d	0.0646735	0.0174585	0.1213241
EARTH	2019-05-20 08:29	> 1 d	0.1728058	0.1297730	0.0488507
EARTH	2025-11-25 03:05	< 1 min	0.0240418	0.0239348	0.0000356
EARTH	2030-05-19 13:35	> 1 d	0.1594036	0.1257622	0.0278160
EARTH	2036-11-25 10:39	> 1 d	0.0355532	0.0181309	0.1081063
EARTH	2041-05-20 04:06	> 1 d	0.1816053	0.1277988	0.0922824
EARTH	2047-11-28 18:53	> 1 d	0.1046159	0.0172328	0.1500184
EARTH	2098-11-17 13:54	> 1 d	0.1913536	0.0474701	0.0482855
EARTH	2103-05-17 16:17	688.6	0.1470107	0.1287518	0.0155630
EARTH	2109-11-21 20:23	522.6	0.1042192	0.0755557	0.0095915
EARTH	2114-05-18 16:10	93.8	0.1275340	0.1274662	0.0001262
EARTH	2120-11-24 03:39	> 1 d	0.0411979	0.0183955	0.0275082
EARTH	2125-05-19 09:38	1070.0	0.1343443	0.1275407	0.0104617

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
302.14704321	321.46587700	0.01808169	MINIMUM
74.38628128	134.28828456	0.12617301	MINIMUM
8.82220995	50.14861260	0.57612793	SADDLE
188.42852320	223.31051696	1.02693770	SADDLE
5.52985203	224.38906762	1.72831064	SADDLE
174.55828862	31.60429598	2.54900261	MAXIMUM

Download:

MOID Plots

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