Asteroids

2024WE4 help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.014

Aphelion (Q)

1.724

Eccentricity (e)

0.259

Inclination (i)

9.4

deg

Orbit period (P)

585.2

Earth MOID

0.05270

U parameter

4.7

Next Earth close approach

Date

2033-01-29

Nominal distance (from Earth center)

0.05535

8279707

Maximum Brightness

17.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

22.5

mag

Diameter

80 - 180*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2024-11-23

Observatory

Pan-STARRS 1, Haleakala

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

1.369190

1-sigma variation

0.000009

Unit

Eccentricity (e)

Value

0.259371

1-sigma variation

0.000005

Unit

Inclination (i)

Value

9.4208

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

299.1347

1-sigma variation

4.215E-5

Unit

Arg. of Perihelion (ω)

Value

212.2443

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

171.15894

1-sigma variation

0.00170

Unit

Perihelion distance

Value

1.014061

1-sigma variation

Unit

Aphelion distance

Value

1.724318

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.618739

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.062946

1-sigma variation

Unit

MOID

Value

0.052700

1-sigma variation

Unit

Orbit Period

Value

585.1858

1-sigma variation

Unit

U parameter

Value

4.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.63079E-11	4.31541E-11	1.11594E-9	3.81392E-10	-4.69596E-10	-1.57714E-8
e	4.31541E-11	2.15840E-11	5.58333E-10	1.90923E-10	-2.30663E-10	-7.88806E-9
i	1.11594E-9	5.58333E-10	1.44937E-8	4.93797E-9	-5.75298E-9	-2.04099E-7
Ω	3.81392E-10	1.90923E-10	4.93797E-9	1.77622E-9	-1.95974E-9	-6.98065E-8
ω	-4.69596E-10	-2.30663E-10	-5.75298E-9	-1.95974E-9	5.50748E-9	8.41373E-8
M	-1.57714E-8	-7.88806E-9	-2.04099E-7	-6.98065E-8	8.41373E-8	2.88293E-6

Date of computation: 2025-11-24 16:53 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

22.549

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

80 - 180*

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

380

Unit

Source

[1]

Normalized RMS of residuals

Value

0.613175

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2024-11-23.584856

Unit

Source

[2]

Last Observation

Value

2025-01-30.270797

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

174 (1)

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 2024WE4 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1956-01-28 10:54	193.3	0.0521717	0.0520922	0.0000809
EARTH	1964-02-04 05:21	303.2	0.0854550	0.0810046	0.0014972
EARTH	1972-02-27 16:20	317.4	0.1902223	0.1844715	0.0019193
EARTH	2017-01-16 15:06	30.2	0.1942529	0.1927240	0.0005097
EARTH	2025-01-24 09:51	< 1 min	0.0754513	0.0754481	0.0000011
EARTH	2033-01-29 13:11	68.9	0.0553464	0.0548948	0.0001564
EARTH	2041-02-08 09:16	334.8	0.1154727	0.1102800	0.0017332
EARTH	2094-01-19 06:02	294.6	0.1616454	0.1485660	0.0043728
EARTH	2102-01-27 11:52	348.8	0.0626915	0.0581802	0.0016895
EARTH	2110-02-01 10:22	512.4	0.0625210	0.0575673	0.0018671
EARTH	2118-02-14 07:09	1330.4	0.1381605	0.1173659	0.0069339

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
342.16028779	26.39492470	0.05270019	MINIMUM
185.60995803	234.47707606	0.72329630	SADDLE
4.38380399	234.59855079	2.02320967	SADDLE
180.67406176	50.67499204	2.71156741	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out