Asteroids

486739 2014EW24 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.789

Aphelion (Q)

1.931

Eccentricity (e)

0.420

Inclination (i)

8.6

deg

Orbit period (P)

579.3

Earth MOID

0.11056

U parameter

0.0

Next Earth close approach

Date

2032-07-31

Nominal distance (from Earth center)

0.18557

27761254

Maximum Brightness

18.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

19.5

mag

Diameter

300 - 700*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2014-03-08

Observatory

Mt. Lemmon Survey

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

1.360004

1-sigma variation

5.130E-9

Unit

Eccentricity (e)

Value

0.419859

1-sigma variation

6.731E-8

Unit

Inclination (i)

Value

8.5775

1-sigma variation

3.847E-6

Unit

Long. of Ascending Node (Ω)

Value

48.1651

1-sigma variation

4.737E-5

Unit

Arg. of Perihelion (ω)

Value

342.1801

1-sigma variation

4.739E-5

Unit

Mean Anomaly (M)

Value

247.23073

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.788994

1-sigma variation

Unit

Aphelion distance

Value

1.931014

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.189960

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.855303

1-sigma variation

Unit

MOID

Value

0.110565

1-sigma variation

Unit

Orbit Period

Value

579.3071

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.63139E-17	1.61481E-17	-4.10255E-15	1.45181E-15	2.20894E-14	-6.70266E-14
e	1.61481E-17	4.53052E-15	5.50179E-14	-5.71611E-13	2.56080E-13	-1.44747E-13
i	-4.10255E-15	5.50179E-14	1.48028E-11	-5.47369E-11	4.63183E-11	8.14321E-12
Ω	1.45181E-15	-5.71611E-13	-5.47369E-11	2.24405E-9	-2.20601E-9	4.19040E-11
ω	2.20894E-14	2.56080E-13	4.63183E-11	-2.20601E-9	2.24602E-9	-1.14371E-10
M	-6.70266E-14	-1.44747E-13	8.14321E-12	4.19040E-11	-1.14371E-10	1.89373E-10

Date of computation: 2025-09-10 00:30 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

19.522

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

300 - 700*

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

Radar R

Unit

Source

[3]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude
[3]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

5898

Unit

Source

[1]

Unobserved

Value

208

Unit

Source

[1]

Normalized RMS of residuals

Value

0.424338

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2009-02-05.16966

Unit

Source

[2]

Last Observation

Value

2025-03-31.293433

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

261 (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

2016-12-20

Unit

Source

[3]

Last Observation

Value

2016-12-20

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

1 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

1 (0)

Unit

Source

[1]

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
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 486739 2014EW24 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	1959-08-10 04:57	< 1 min	0.1517016	0.1517008	0.0000003
EARTH	1970-12-17 14:55	< 1 min	0.1199766	0.1199743	0.0000008
EARTH	1997-11-16 21:56	< 1 min	0.1824273	0.1824268	0.0000002
EARTH	2005-08-24 00:21	< 1 min	0.1732938	0.1732933	0.0000002
EARTH	2016-12-27 00:14	< 1 min	0.1114529	0.1114526	0.0000001
EARTH	2032-07-31 01:32	< 1 min	0.1855725	0.1855715	0.0000003
EARTH	2043-11-20 09:04	< 1 min	0.1781909	0.1781901	0.0000003
EARTH	2051-08-23 20:46	< 1 min	0.1711377	0.1711367	0.0000003
EARTH	2062-12-21 06:06	< 1 min	0.1156591	0.1156585	0.0000002
EARTH	2082-01-09 03:31	< 1 min	0.1971574	0.1971564	0.0000003
EARTH	2089-11-07 04:52	< 1 min	0.1978057	0.1978054	0.0000001
EARTH	2097-08-13 00:26	< 1 min	0.1533337	0.1533335	0.0000001
EARTH	2108-12-18 19:29	< 1 min	0.1226312	0.1226304	0.0000003

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
43.22252905	351.51899773	0.11069371	MINIMUM
308.63224684	214.71648903	0.15115491	MINIMUM
351.22866115	275.88756934	0.21438116	SADDLE
178.08221361	106.62023349	0.92858734	SADDLE
356.98332912	104.77684896	1.79277841	SADDLE
179.29388431	287.39435976	2.92516867	MAXIMUM

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MOID Plots

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