Asteroids

2025EL12 help

Last update: 2026-03-18 10:55 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.828

Aphelion (Q)

1.247

Eccentricity (e)

0.202

Inclination (i)

18.2

deg

Orbit period (P)

386.3

Earth MOID

0.00001

U parameter

1.9

Next Earth close approach

Date

2027-09-16

Nominal distance (from Earth center)

0.00333

498330

Maximum Brightness

13.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

22.9

mag

Diameter

70 - 160*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-03-10

Observatory

ATLAS Chile, Rio Hurtado

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.037973

1-sigma variation

6.782E-8

Unit

Eccentricity (e)

Value

0.201811

1-sigma variation

2.312E-7

Unit

Inclination (i)

Value

18.2068

1-sigma variation

1.947E-5

Unit

Long. of Ascending Node (Ω)

Value

172.8534

1-sigma variation

1.457E-5

Unit

Arg. of Perihelion (ω)

Value

87.0838

1-sigma variation

1.865E-5

Unit

Mean Anomaly (M)

Value

357.17808

1-sigma variation

0.00003

Unit

Perihelion distance

Value

0.828499

1-sigma variation

Unit

Aphelion distance

Value

1.247447

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.008254

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.000006

1-sigma variation

Unit

MOID

Value

0.000007

1-sigma variation

Unit

Orbit Period

Value

386.2579

1-sigma variation

Unit

U parameter

Value

1.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.59986E-15	1.38439E-14	8.97456E-13	1.03772E-13	3.56038E-13	-1.73360E-12
e	1.38439E-14	5.34526E-14	3.65427E-12	5.99278E-13	2.15442E-12	-5.24456E-12
i	8.97456E-13	3.65427E-12	3.79103E-10	1.11984E-11	1.90490E-10	-3.40711E-10
Ω	1.03772E-13	5.99278E-13	1.11984E-11	2.12338E-10	-1.65757E-10	-6.34846E-11
ω	3.56038E-13	2.15442E-12	1.90490E-10	-1.65757E-10	3.47939E-10	-1.34562E-10
M	-1.73360E-12	-5.24456E-12	-3.40711E-10	-6.34846E-11	-1.34562E-10	6.76493E-10

Date of computation: 2026-03-18 10:55 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

22.917

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

70 - 160*

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

310

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.486295

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-03-10.095723

Unit

Source

[2]

Last Observation

Value

2026-01-14.10094

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

23 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2025EL12 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	1965-03-07 15:17	< 1 min	0.1248656	0.1248538	0.0000039
EARTH	1966-03-20 07:59	< 1 min	0.1906325	0.1906203	0.0000041
EARTH	1968-09-19 05:59	< 1 min	0.0736765	0.0736615	0.0000050
EARTH	1986-03-13 08:18	< 1 min	0.0094941	0.0094921	0.0000007
EARTH	1988-09-14 02:24	< 1 min	0.0467621	0.0467491	0.0000043
EARTH	2005-03-04 21:08	< 1 min	0.1909583	0.1909274	0.0000103
EARTH	2006-03-18 20:11	< 1 min	0.1439314	0.1438995	0.0000107
EARTH	2008-09-18 22:03	< 1 min	0.0769785	0.0769441	0.0000115
EARTH	2025-03-13 00:50	< 1 s	0.0081448	0.0081446	0.0000001
EARTH	2027-09-16 03:08	< 1 min	0.0033311	0.0033287	0.0000008
EARTH	2048-03-04 01:23	24.4	0.1560378	0.1548339	0.0004013
EARTH	2049-03-17 05:03	30.5	0.1124944	0.1112548	0.0004133
EARTH	2051-09-12 23:32	15.0	0.1041838	0.1029142	0.0004232
EARTH	2052-09-21 09:11	21.4	0.1574626	0.1562237	0.0004130
EARTH	2073-03-11 15:06	7.1	0.0209471	0.0209205	0.0000096
EARTH	2076-09-17 08:48	12.8	0.0514518	0.0506319	0.0002733
EARTH	2097-03-11 23:35	39.8	0.0207898	0.0202814	0.0001926
EARTH	2099-09-11 12:52	15.9	0.1832041	0.1791523	0.0013507
EARTH	2100-09-19 15:41	77.2	0.0880488	0.0829889	0.0016867
EARTH	2120-03-06 21:50	384.0	0.1230149	0.1040294	0.0063477
EARTH	2121-03-20 18:08	436.4	0.1560087	0.1365950	0.0064846
EARTH	2123-09-16 03:37	297.6	0.0333012	0.0141755	0.0063784

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
81.23458984	249.34585125	0.00000726	MINIMUM
283.79836140	66.89085451	0.00681494	MINIMUM
2.62024706	158.30979682	0.34525352	SADDLE
182.42511247	337.76197178	0.43797176	SADDLE
2.24497347	337.82976380	1.79069347	SADDLE
181.10328062	156.65201979	2.23469494	MAXIMUM

Download:

MOID Plots

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