Asteroids

2025CN2 help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.855

Aphelion (Q)

1.452

Eccentricity (e)

0.259

Inclination (i)

6.6

deg

Orbit period (P)

452.4

Earth MOID

0.00847

U parameter

7.3

Next Earth close approach

Date

2041-07-23

Nominal distance (from Earth center)

0.12042

18014051

Maximum Brightness

25.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

8 - 17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-05

Observatory

Kitt Peak-Bok

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

1.153330

1-sigma variation

0.000270

Unit

Eccentricity (e)

Value

0.258795

1-sigma variation

0.000266

Unit

Inclination (i)

Value

6.6001

1-sigma variation

0.0056

Unit

Long. of Ascending Node (Ω)

Value

328.9650

1-sigma variation

0.0007

Unit

Arg. of Perihelion (ω)

Value

245.0976

1-sigma variation

0.0009

Unit

Mean Anomaly (M)

Value

179.76800

1-sigma variation

0.05408

Unit

Perihelion distance

Value

0.854855

1-sigma variation

Unit

Aphelion distance

Value

1.451806

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.195404

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.018726

1-sigma variation

Unit

MOID

Value

0.008472

1-sigma variation

Unit

Orbit Period

Value

452.4067

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.30470E-8	7.20193E-8	1.50246E-6	1.72089E-7	-1.87980E-7	-1.46172E-5
e	7.20193E-8	7.10091E-8	1.48154E-6	1.69382E-7	-1.84417E-7	-1.44118E-5
i	1.50246E-6	1.48154E-6	3.09218E-5	3.51436E-6	-3.79538E-6	-3.00667E-4
Ω	1.72089E-7	1.69382E-7	3.51436E-6	4.40786E-7	-5.36112E-7	-3.44179E-5
ω	-1.87980E-7	-1.84417E-7	-3.79538E-6	-5.36112E-7	7.66143E-7	3.75551E-5
M	-1.46172E-5	-1.44118E-5	-3.00667E-4	-3.44179E-5	3.75551E-5	2.92503E-3

Date of computation: 2025-11-24 16:53 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

27.717

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

8 - 17*

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

Unit

Source

[1]

Unobserved

Value

338

Unit

Source

[1]

Normalized RMS of residuals

Value

0.518619

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-05.408281

Unit

Source

[2]

Last Observation

Value

2025-02-11.532749

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

Close Approaches for 2025CN2 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	1954-04-12 02:40	> 1 mo	0.1693535	0.1132810	0.4482942
EARTH	1959-03-08 14:35	> 1 mo	0.1135960	0.0329474	0.3407815
EARTH	1964-02-16 22:01	> 1 mo	0.0253696	0.0095321	0.7244795
EARTH	1969-02-13 12:35	> 1 d	0.0099007	0.0091915	0.0165059
EARTH	1974-02-04 06:09	> 1 d	0.1539124	0.0128105	0.0523696
EARTH	2000-07-20 15:43	> 1 d	0.0892966	0.0683983	0.0267525
EARTH	2005-07-14 05:38	> 1 d	0.0949421	0.0675830	0.0232524
EARTH	2010-05-24 06:17	> 1 w	0.1744207	0.1545708	0.0068255
EARTH	2015-04-15 20:35	> 1 w	0.1729752	0.1598679	0.0046043
EARTH	2020-03-05 22:25	> 1 d	0.1086178	0.0829022	0.0086828
EARTH	2025-02-13 16:23	< 1 min	0.0098659	0.0098386	0.0000091
EARTH	2041-07-23 19:21	> 1 d	0.1204165	0.0666337	0.0272925
EARTH	2046-06-15 03:04	> 1 w	0.1571767	0.0945425	0.0216333
EARTH	2051-03-24 11:03	> 1 w	0.1452472	0.0836577	0.0230233
EARTH	2056-02-09 07:13	> 1 d	0.0829808	0.0093652	0.0416833
EARTH	2072-07-19 12:03	914.4	0.0675598	0.0671107	0.0018732
EARTH	2077-05-06 04:00	> 1 w	0.1831414	0.1826175	0.0005982
EARTH	2082-02-20 05:19	> 1 w	0.0513226	0.0090443	0.0600836
EARTH	2087-02-04 03:26	> 1 d	0.1761035	0.0636315	0.0376275
EARTH	2103-07-23 08:20	> 1 d	0.0856725	0.0665292	0.0335915
EARTH	2108-06-01 22:49	> 1 mo	0.1699867	0.0946902	0.0273421
EARTH	2113-03-22 20:27	> 1 mo	0.1412455	0.0585796	0.0622189
EARTH	2118-02-12 00:21	> 1 w	0.0540785	0.0071676	0.1218345

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
304.45651892	43.17594428	0.00847175	MINIMUM
67.66768733	195.46312707	0.06763211	MINIMUM
8.56637955	122.83539515	0.18432724	SADDLE
184.29799810	296.53880793	0.47557445	SADDLE
4.32017367	297.24108971	1.84566335	SADDLE
181.91592841	114.71991396	2.45620152	MAXIMUM

Download:

MOID Plots

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