Asteroids

2025CM help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.658

Aphelion (Q)

1.066

Eccentricity (e)

0.236

Inclination (i)

2.0

deg

Orbit period (P)

292.4

Earth MOID

0.00219

U parameter

5.7

Next Earth close approach

Date

2029-02-04

Nominal distance (from Earth center)

0.01353

2023957

Maximum Brightness

19.9

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

10 - 23*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-02

Observatory

ATLAS-HKO, 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.862144

1-sigma variation

0.000011

Unit

Eccentricity (e)

Value

0.236443

1-sigma variation

0.000048

Unit

Inclination (i)

Value

1.9513

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

140.3985

1-sigma variation

0.0006

Unit

Arg. of Perihelion (ω)

Value

133.7480

1-sigma variation

0.0018

Unit

Mean Anomaly (M)

Value

124.87651

1-sigma variation

0.01845

Unit

Perihelion distance

Value

0.658296

1-sigma variation

Unit

Aphelion distance

Value

1.065991

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.013535

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.314009

1-sigma variation

Unit

MOID

Value

0.002193

1-sigma variation

Unit

Orbit Period

Value

292.3937

1-sigma variation

Unit

U parameter

Value

5.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.32227E-10	-5.49271E-10	-4.01764E-10	-6.67115E-9	1.95896E-8	-2.11978E-7
e	-5.49271E-10	2.29194E-9	1.47013E-9	2.85746E-8	-8.32507E-8	8.82986E-7
i	-4.01764E-10	1.47013E-9	5.65894E-9	1.60866E-9	-2.13866E-8	5.97216E-7
Ω	-6.67115E-9	2.85746E-8	1.60866E-9	4.15811E-7	-1.15212E-6	1.08982E-5
ω	1.95896E-8	-8.32507E-8	-2.13866E-8	-1.15212E-6	3.25047E-6	-3.18479E-5
M	-2.11978E-7	8.82986E-7	5.97216E-7	1.08982E-5	-3.18479E-5	3.40404E-4

Date of computation: 2026-03-17 23:26 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

27.032

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

10 - 23*

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

430

Unit

Source

[1]

Normalized RMS of residuals

Value

0.422657

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-02.577588

Unit

Source

[2]

Last Observation

Value

2025-02-04.990088

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

61 (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 2025CM 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	1959-02-05 10:03	1065.7	0.0132555	0.0047180	0.0096034
EARTH	1962-11-09 07:32	1081.2	0.1759739	0.1161903	0.0200015
VENUS	1965-01-08 14:15	> 1 w	0.0341776	0.0148522	0.0193243
VENUS	1967-06-17 01:35	> 1 d	0.0127274	0.0112282	0.0077893
EARTH	1968-02-07 10:26	118.4	0.0350067	0.0029922	0.0230852
EARTH	1971-11-08 11:09	774.7	0.0401267	0.0207642	0.0297050
EARTH	1980-12-26 11:08	> 1 d	0.0927912	0.0907106	0.0006947
EARTH	1990-02-07 10:10	264.8	0.0483447	0.0032218	0.0239144
VENUS	1992-11-15 02:13	> 1 d	0.0455151	0.0405808	0.0109272
EARTH	1993-11-08 03:51	305.2	0.0394350	0.0209850	0.0158791
VENUS	1997-08-21 23:21	532.7	0.0423686	0.0404022	0.0006590
VENUS	2000-01-22 04:25	> 1 d	0.0268267	0.0108077	0.0119568
EARTH	2002-12-05 18:17	> 1 d	0.0827606	0.0746582	0.0027184
EARTH	2012-02-07 18:50	222.3	0.0314901	0.0156391	0.0053171
EARTH	2015-11-11 07:56	143.2	0.0217771	0.0214520	0.0002015
VENUS	2020-07-23 14:02	108.4	0.0472179	0.0460700	0.0003943
EARTH	2025-02-05 21:58	< 1 min	0.0021586	0.0021572	0.0000005
VENUS	2025-04-09 16:54	18.4	0.0412551	0.0411217	0.0000445
EARTH	2029-02-04 04:45	77.2	0.0135293	0.0122462	0.0004283
EARTH	2033-01-05 10:59	> 1 d	0.0834712	0.0815952	0.0006262
EARTH	2036-11-28 01:41	> 1 d	0.0680600	0.0617016	0.0021708
EARTH	2040-11-11 13:56	263.1	0.0468163	0.0370075	0.0040489
EARTH	2044-11-13 00:55	184.7	0.1800414	0.1621293	0.0059829
EARTH	2062-02-07 11:41	38.7	0.0595537	0.0532919	0.0020873
EARTH	2066-01-27 20:19	1057.6	0.0475161	0.0410360	0.0021602
EARTH	2069-12-18 18:11	1179.5	0.0871130	0.0864374	0.0002260
EARTH	2073-11-14 05:13	45.8	0.0362685	0.0356307	0.0002293
EARTH	2077-11-11 14:15	59.8	0.1225396	0.1222461	0.0000979
EARTH	2095-02-05 06:24	31.0	0.1770877	0.1701690	0.0023063
EARTH	2099-02-07 00:50	90.7	0.0478096	0.0410755	0.0022451
EARTH	2103-02-01 15:11	124.8	0.0326176	0.0320225	0.0001990
EARTH	2106-12-26 02:11	1167.4	0.0880329	0.0878321	0.0000673
EARTH	2110-11-17 00:26	725.2	0.0424862	0.0381457	0.0016810
EARTH	2114-11-12 01:15	142.0	0.1013960	0.0844573	0.0057298

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
232.50731919	34.64835751	0.00227219	MINIMUM
128.47256232	312.04198253	0.03361269	MINIMUM
178.89370586	352.11504127	0.08612442	SADDLE
0.36753059	173.14344140	0.36027023	SADDLE
0.61089836	353.46759140	1.64187076	SADDLE
180.51544866	173.37310438	2.08389480	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2025CM

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2112-02-06.776	92487.776	3.707	0.000	1.41 ± 0.006	1.96E5	6.26E-9	8.35E-2	-9.48	0


Based on 61 optical observations (of which 0 are rejected as outliers) from 2025/02/02.578 to 2025/02/04.990.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 2.03 and 2.03 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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Download Impactor Table as: