Asteroids

2025WC5 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.725

Aphelion (Q)

2.352

Eccentricity (e)

0.528

Inclination (i)

1.5

deg

Orbit period (P)

697.1

Earth MOID

0.01054

U parameter

7.7

Next Earth close approach

Date

2029-06-06

Nominal distance (from Earth center)

0.17346

25949328

Maximum Brightness

24.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

27 - 60*

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

1.538599

1-sigma variation

0.001068

Unit

Eccentricity (e)

Value

0.528495

1-sigma variation

0.000424

Unit

Inclination (i)

Value

1.5386

1-sigma variation

0.0009

Unit

Long. of Ascending Node (Ω)

Value

39.3540

1-sigma variation

0.0082

Unit

Arg. of Perihelion (ω)

Value

306.8427

1-sigma variation

0.0066

Unit

Mean Anomaly (M)

Value

23.11780

1-sigma variation

0.03078

Unit

Perihelion distance

Value

0.725458

1-sigma variation

Unit

Aphelion distance

Value

2.351740

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.150893

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.616059

1-sigma variation

Unit

MOID

Value

0.010544

1-sigma variation

Unit

Orbit Period

Value

697.0864

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.14050E-6	4.53025E-7	9.09331E-7	-5.00327E-6	3.15126E-6	-3.28713E-5
e	4.53025E-7	1.79968E-7	3.59912E-7	-2.01453E-6	1.27463E-6	-1.30565E-5
i	9.09331E-7	3.59912E-7	8.31737E-7	-1.78338E-6	5.85947E-7	-2.62448E-5
Ω	-5.00327E-6	-2.01453E-6	-1.78338E-6	6.76320E-5	-5.36260E-5	1.43440E-4
ω	3.15126E-6	1.27463E-6	5.85947E-7	-5.36260E-5	4.35405E-5	-9.01772E-5
M	-3.28713E-5	-1.30565E-5	-2.62448E-5	1.43440E-4	-9.01772E-5	9.47426E-4

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

24.998

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

27 - 60*

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

0.504358

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-11-26.281442

Unit

Source

[2]

Last Observation

Value

2025-11-27.928024

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

53 (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 2025WC5 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
VENUS	1959-01-06 01:51	> 1 d	0.0410915	0.0211310	0.0220214
EARTH	1964-11-28 11:16	> 1 w	0.0688624	0.0110924	0.1755610
EARTH	1968-06-14 08:58	> 1 w	0.0377579	0.0203280	0.1761238
VENUS	1978-02-10 21:20	> 1 w	0.0242455	0.0240107	0.0034927
EARTH	1985-11-20 14:11	> 1 d	0.0550776	0.0106927	0.0482205
EARTH	2008-06-20 07:02	> 1 d	0.0488029	0.0200012	0.0604603
EARTH	2025-11-24 14:16	< 1 min	0.0121821	0.0121545	0.0000092
EARTH	2029-06-06 22:45	> 1 d	0.1734605	0.0994154	0.0248003
VENUS	2037-02-27 22:52	> 1 w	0.0256597	0.0245725	0.0136564
EARTH	2044-12-04 08:48	> 1 w	0.1591659	0.0112639	0.3048195
MARS	2048-04-06 09:29	> 1 w	0.0358754	0.0084471	0.2904234
EARTH	2048-06-14 12:37	> 1 w	0.0440896	0.0192109	0.3448517
EARTH	2063-12-03 22:07	> 1 w	0.1297920	0.0111027	0.2059408
EARTH	2067-06-11 16:45	> 1 w	0.1036356	0.0193799	0.3152043
VENUS	2080-11-12 02:36	> 1 mo	0.0272026	0.0198227	0.0762523
EARTH	2082-11-26 16:24	> 1 mo	0.0133414	0.0100916	0.5017435
EARTH	2086-06-08 17:23	> 1 mo	0.1582396	0.0207231	1.5271875
MARS	2100-04-05 05:44	> 1 mo	0.0475920	0.0070520	3.0680586
EARTH	2105-06-25 06:52	> 1 mo	0.0764222	0.0179882	2.9317475
VENUS	2120-11-20 22:39	> 1 mo	0.0314829	0.0298967	0.7355287
EARTH	2122-11-29 08:59	> 1 mo	0.0304389	0.0098983	6.4597664

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
47.24789533	321.94082035	0.01054438	MINIMUM
309.80049764	164.32721507	0.01990684	MINIMUM
357.92660562	242.38593872	0.28359107	SADDLE
179.37172002	64.17211062	1.35884778	SADDLE
358.04823710	62.58778024	1.71843267	SADDLE
179.39504746	244.17932381	3.35975219	MAXIMUM

Download:

MOID Plots

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