Asteroids

2025AL2 help

Last update: 2026-08-16 13:01 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.804

Aphelion (Q)

2.285

Eccentricity (e)

0.480

Inclination (i)

2.9

deg

Orbit period (P)

700.8

Earth MOID

0.00451

U parameter

1.0

Next Earth close approach

Date

2044-01-10

Nominal distance (from Earth center)

0.16115

24108313

Maximum Brightness

21.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

22.8

mag

Diameter

70 - 170*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-01-05

Observatory

University of Arizona 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.544110

1-sigma variation

4.769E-8

Unit

Eccentricity (e)

Value

0.479559

1-sigma variation

3.374E-8

Unit

Inclination (i)

Value

2.9375

1-sigma variation

6.221E-6

Unit

Long. of Ascending Node (Ω)

Value

328.8658

1-sigma variation

2.802E-5

Unit

Arg. of Perihelion (ω)

Value

63.7113

1-sigma variation

2.807E-5

Unit

Mean Anomaly (M)

Value

299.59538

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.803619

1-sigma variation

Unit

Aphelion distance

Value

2.284600

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.031191

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.521404

1-sigma variation

Unit

MOID

Value

0.004514

1-sigma variation

Unit

Orbit Period

Value

700.8347

1-sigma variation

Unit

U parameter

Value

1.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.27393E-15	-1.46818E-15	5.60263E-14	-7.99030E-14	-4.38532E-13	2.26525E-13
e	-1.46818E-15	1.13854E-15	-1.65342E-14	-8.30957E-14	4.36047E-13	-1.41430E-13
i	5.60263E-14	-1.65342E-14	3.87056E-11	-1.47961E-10	1.30170E-10	9.43559E-12
Ω	-7.99030E-14	-8.30957E-14	-1.47961E-10	7.84838E-10	-7.20377E-10	-4.05405E-11
ω	-4.38532E-13	4.36047E-13	1.30170E-10	-7.20377E-10	7.87770E-10	-1.65241E-11
M	2.26525E-13	-1.41430E-13	9.43559E-12	-4.05405E-11	-1.65241E-11	2.56366E-11

Date of computation: 2026-08-16 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

22.777

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 - 170*

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

588

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.583645

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-01-05.418008

Unit

Source

[2]

Last Observation

Value

2026-08-16.086933

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

138 (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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

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 2025AL2 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	1953-11-09 17:50	5.3	0.1848700	0.1848620	0.0000027
EARTH	1955-08-13 10:01	2.1	0.0412553	0.0411990	0.0000188
EARTH	1976-12-25 16:12	1.4	0.0492929	0.0492766	0.0000054
EARTH	1978-09-10 14:02	3.8	0.1363776	0.1363580	0.0000065
EARTH	2000-01-08 05:38	< 1 min	0.1479991	0.1479815	0.0000059
EARTH	2001-10-19 14:25	3.2	0.1947038	0.1947027	0.0000004
EARTH	2003-08-05 09:37	< 1 min	0.1669151	0.1668974	0.0000059
EARTH	2024-11-24 15:52	< 1 min	0.1626944	0.1626940	0.0000001
EARTH	2026-08-16 22:04	< 1 s	0.0056297	0.0056297	0.0000000
EARTH	2044-01-10 01:09	< 1 min	0.1611541	0.1611354	0.0000062
EARTH	2045-10-03 23:41	3.3	0.1833971	0.1833917	0.0000018
EARTH	2064-12-06 17:26	2.8	0.1388235	0.1388086	0.0000050
EARTH	2066-08-14 05:39	< 1 min	0.0398647	0.0398440	0.0000069
EARTH	2083-12-26 16:37	4.2	0.0587416	0.0586860	0.0000186
EARTH	2085-08-20 23:31	4.6	0.0344453	0.0343616	0.0000279
EARTH	2103-01-12 14:56	6.6	0.1833729	0.1830969	0.0000920
EARTH	2104-10-09 13:38	52.0	0.1885742	0.1885079	0.0000221
EARTH	2123-12-06 22:55	60.2	0.1438614	0.1435770	0.0000948
EARTH	2125-08-14 17:11	15.7	0.0493736	0.0489333	0.0001468

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
315.90569534	220.13735633	0.00451433	MINIMUM
41.12722837	352.95662883	0.03973704	MINIMUM
358.51585385	286.77382174	0.19571077	SADDLE
179.35456074	107.36000509	1.28135988	SADDLE
357.96325316	105.85744758	1.80808422	SADDLE
179.23918796	287.29533921	3.27884723	MAXIMUM

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MOID Plots

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