Asteroids

2025CL3 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.678

Aphelion (Q)

1.590

Eccentricity (e)

0.402

Inclination (i)

4.8

deg

Orbit period (P)

441.0

Earth MOID

0.00083

U parameter

8.0

Next Earth close approach

Date

2026-09-01

Nominal distance (from Earth center)

0.02286

3419675

Maximum Brightness

20.5

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

25.4

mag

Diameter

22 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-07

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

1.133864

1-sigma variation

0.000754

Unit

Eccentricity (e)

Value

0.402485

1-sigma variation

0.000808

Unit

Inclination (i)

Value

4.8148

1-sigma variation

0.0088

Unit

Long. of Ascending Node (Ω)

Value

337.9212

1-sigma variation

0.0012

Unit

Arg. of Perihelion (ω)

Value

260.9340

1-sigma variation

0.0021

Unit

Mean Anomaly (M)

Value

179.90600

1-sigma variation

0.14324

Unit

Perihelion distance

Value

0.677501

1-sigma variation

Unit

Aphelion distance

Value

1.590228

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.004428

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.097657

1-sigma variation

Unit

MOID

Value

0.000831

1-sigma variation

Unit

Orbit Period

Value

441.0015

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.68545E-7	6.09563E-7	6.59963E-6	8.42135E-7	1.55143E-6	-1.08010E-4
e	6.09563E-7	6.53556E-7	7.07550E-6	9.04682E-7	1.66355E-6	-1.15802E-4
i	6.59963E-6	7.07550E-6	7.66149E-5	9.73624E-6	1.80201E-5	-1.25377E-3
Ω	8.42135E-7	9.04682E-7	9.73624E-6	1.48819E-6	2.26253E-6	-1.59961E-4
ω	1.55143E-6	1.66355E-6	1.80201E-5	2.26253E-6	4.29188E-6	-2.94731E-4
M	-1.08010E-4	-1.15802E-4	-1.25377E-3	-1.59961E-4	-2.94731E-4	2.05192E-2

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

25.389

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

22 - 50*

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

[-]

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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

221

Unit

Source

[1]

Normalized RMS of residuals

Value

0.543037

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-07.270964

Unit

Source

[2]

Last Observation

Value

2025-02-13.81597

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

28 (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 2025CL3 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	1956-06-26 11:51	> 1 mo	0.0425523	0.0316092	0.8521943
EARTH	1961-02-10 03:56	> 1 mo	0.0606229	0.0200527	0.5864684
EARTH	1962-08-29 08:44	> 1 mo	0.0282897	0.0023030	1.1449275
EARTH	1990-02-10 05:02	> 1 d	0.0642020	0.0203270	0.1218991
VENUS	1990-05-04 22:34	> 1 w	0.0431572	0.0315200	0.1076271
EARTH	1991-08-29 05:12	> 1 w	0.0400545	0.0016872	0.1844386
EARTH	1996-02-27 05:09	> 1 w	0.1743341	0.0298729	0.1778474
EARTH	1997-09-07 19:13	> 1 w	0.1751869	0.0003977	0.1770855
EARTH	2020-08-13 04:31	> 1 d	0.1994503	0.0980063	0.0338740
VENUS	2022-12-06 01:54	> 1 d	0.0393263	0.0312200	0.0102544
EARTH	2025-02-13 13:34	< 1 min	0.0237827	0.0236406	0.0000474
EARTH	2026-09-01 02:31	399.6	0.0228591	0.0054584	0.0058164
EARTH	2048-02-11 06:32	> 1 d	0.0624324	0.0198835	0.0608051
EARTH	2049-08-29 08:14	> 1 d	0.0344984	0.0002785	0.0562878
EARTH	2054-03-03 18:59	> 1 d	0.1913944	0.1609626	0.0102330
VENUS	2057-12-31 09:57	> 1 w	0.0346120	0.0318572	0.0291172
EARTH	2077-02-07 14:11	> 1 w	0.1235119	0.0197157	0.5869237
EARTH	2078-08-25 15:03	> 1 mo	0.1096150	0.0015922	0.6056935
EARTH	2083-02-19 03:33	> 1 mo	0.0986012	0.0203983	0.6010514
EARTH	2084-09-04 19:27	> 1 w	0.1041478	0.0005832	0.5727120
VENUS	2090-08-11 03:39	> 1 mo	0.0315907	0.0315773	0.0077387
EARTH	2107-08-20 06:47	> 1 mo	0.1804428	0.0082297	1.3604464
EARTH	2112-02-17 15:56	> 1 mo	0.0491027	0.0185926	1.4766614
EARTH	2113-09-04 06:54	> 1 mo	0.0646480	0.0008381	1.3968069
VENUS	2124-06-15 18:14	> 1 mo	0.0452755	0.0303122	0.6309003

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
74.16325912	235.77614040	0.00107807	MINIMUM
289.21973452	41.20159764	0.02035126	MINIMUM
2.38237956	139.34854830	0.34164433	SADDLE
181.09631051	317.71085275	0.61140043	SADDLE
2.10227650	318.93279957	1.66388894	SADDLE
180.86352732	137.56907802	2.60013946	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2025CL3

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2057-02-26.452	72420.452	0.559	0.06 ± 8.488	1.03E8	8.57E-10	1.42E0	-8.94
2064-08-30.956	75162.956	0.545	0.92 ± 0.010	4.16E6	2.16E-7	1.42E0	-6.62
2065-08-31.243	75528.243	-3.828	0.90 ± 0.143	5.03E6	1.00E-10	1.39E0	-9.97
2066-08-31.406	75893.406	2.453	1.17 ± 0.021	1.20E3	2.08E-5	1.43E0	-4.66
2068-08-30.904	76623.904	0.521	1.17 ± 0.020	9.40E5	4.63E-7	1.42E0	-6.33
2071-08-31.471	77719.471	-4.504	1.14 ± 0.015	7.52E5	3.06E-11	1.39E0	-10.55
2071-08-31.482	77719.482	-4.068	0.88 ± 0.016	4.35E6	4.66E-11	1.39E0	-10.37
2071-08-31.778	77719.778	4.528	0.63 ± 0.019	8.86E4	3.73E-10	1.45E0	-9.45
2074-08-31.303	78815.303	-2.587	0.59 ± 0.021	1.35E7	2.47E-9	1.40E0	-8.67
2074-08-31.387	78815.387	4.348	0.93 ± 0.020	1.35E6	4.34E-11	1.45E0	-10.41
2076-08-30.969	79545.969	0.594	1.03 ± 0.012	1.28E6	5.94E-7	1.42E0	-6.30
2084-08-30.709	82467.709	-4.439	0.16 ± 0.178	1.33E6	4.13E-11	1.39E0	-10.53
2084-08-30.721	82467.721	-4.078	1.28 ± 0.017	4.72E6	2.05E-11	1.39E0	-10.83
2087-08-31.585	83563.585	0.599	0.72 ± 0.010	7.06E6	1.14E-7	1.42E0	-7.10
2087-08-31.639	83563.639	0.606	1.29 ± 0.020	2.75E6	6.90E-8	1.42E0	-7.31
2088-08-30.771	83928.771	-4.885	0.71 ± 0.023	1.58E5	3.76E-11	1.38E0	-10.60
2092-08-30.709	85389.709	-4.278	0.41 ± 0.016	7.43E5	1.44E-10	1.40E0	-10.04
2092-08-30.728	85389.728	0.471	0.41 ± 0.055	1.67E8	5.40E-9	1.42E0	-8.45
2103-09-01.598	89407.598	0.599	0.89 ± 0.014	4.82E6	1.48E-7	1.43E0	-7.08


Based on 28 optical observations (of which 0 are rejected as outliers) from 2025/02/07.271 to 2025/02/13.816.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.33 and 1.33 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250805 130500.123 UTC.

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