Asteroids

2025KC1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.885

Aphelion (Q)

1.534

Eccentricity (e)

0.268

Inclination (i)

7.9

deg

Orbit period (P)

486.1

Earth MOID

0.00619

U parameter

7.4

Next Earth close approach

Date

2029-05-27

Nominal distance (from Earth center)

0.06075

9087427

Maximum Brightness

22.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

16 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-05-21

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

1.209856

1-sigma variation

0.000395

Unit

Eccentricity (e)

Value

0.268221

1-sigma variation

0.000313

Unit

Inclination (i)

Value

7.9402

1-sigma variation

0.0077

Unit

Long. of Ascending Node (Ω)

Value

68.0585

1-sigma variation

0.0006

Unit

Arg. of Perihelion (ω)

Value

249.7624

1-sigma variation

0.0081

Unit

Mean Anomaly (M)

Value

87.31324

1-sigma variation

0.02941

Unit

Perihelion distance

Value

0.885347

1-sigma variation

Unit

Aphelion distance

Value

1.534365

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.251220

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.012343

1-sigma variation

Unit

MOID

Value

0.006187

1-sigma variation

Unit

Orbit Period

Value

486.0701

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.55812E-7	1.23465E-7	3.02084E-6	2.51800E-7	-3.19731E-6	-1.16101E-5
e	1.23465E-7	9.78391E-8	2.39385E-6	1.99492E-7	-2.53219E-6	-9.20017E-6
i	3.02084E-6	2.39385E-6	5.85714E-5	4.88081E-6	-6.19556E-5	-2.25103E-4
Ω	2.51800E-7	1.99492E-7	4.88081E-6	4.07317E-7	-5.17423E-6	-1.87603E-5
ω	-3.19731E-6	-2.53219E-6	-6.19556E-5	-5.17423E-6	6.58962E-5	2.38152E-4
M	-1.16101E-5	-9.20017E-6	-2.25103E-4	-1.87603E-5	2.38152E-4	8.65131E-4

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

26.047

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

16 - 40*

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

200

Unit

Source

[1]

Normalized RMS of residuals

Value

0.610344

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-05-20.376817

Unit

Source

[2]

Last Observation

Value

2025-05-28.44868

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

40 (2)

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 2025KC1 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
EARTH	1950-06-19 09:11	> 1 w	0.1078314	0.0162700	0.0803913
EARTH	1954-07-17 22:44	> 1 mo	0.1595072	0.0915818	0.0391057
EARTH	1958-08-16 16:36	> 1 mo	0.1775751	0.1775662	0.0000584
EARTH	1962-10-12 04:39	> 1 d	0.1517687	0.0927306	0.0627961
EARTH	1966-10-19 01:27	> 1 d	0.1037225	0.0995272	0.0210571
EARTH	1970-10-23 03:28	> 1 d	0.1176791	0.0992442	0.0421895
EARTH	1974-10-27 13:26	> 1 d	0.1930894	0.0976790	0.0692990
EARTH	2017-05-19 16:48	1330.3	0.1940306	0.1307404	0.0210967
EARTH	2021-05-25 10:14	1013.2	0.0921787	0.0560875	0.0120397
EARTH	2025-05-31 02:23	< 1 min	0.0135930	0.0135520	0.0000137
EARTH	2029-05-27 12:44	1134.9	0.0607457	0.0249356	0.0120211
EARTH	2033-05-22 12:47	1247.2	0.1436379	0.0910981	0.0175149
EARTH	2082-10-28 11:35	> 1 d	0.1589675	0.0966600	0.0278708
EARTH	2086-10-24 18:33	> 1 d	0.1020863	0.0943382	0.0121977
EARTH	2090-10-21 11:01	> 1 d	0.1012996	0.0941637	0.0114577
EARTH	2094-10-16 21:56	> 1 d	0.1459173	0.0899923	0.0269291
EARTH	2098-08-25 02:33	> 1 w	0.1788821	0.1701404	0.0037032
EARTH	2102-07-29 13:28	> 1 w	0.1713631	0.1404324	0.0116979
EARTH	2106-07-02 14:59	> 1 w	0.1359641	0.0581490	0.0279919
EARTH	2110-06-12 19:26	> 1 d	0.0801893	0.0014478	0.0348982
EARTH	2114-06-05 13:59	> 1 d	0.0311596	0.0081666	0.0234881
EARTH	2118-06-05 06:40	> 1 d	0.0280953	0.0085443	0.0225765
EARTH	2122-06-12 02:43	> 1 d	0.0759926	0.0026449	0.0298354

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
306.08449282	148.37216940	0.00618702	MINIMUM
56.33852038	288.06924304	0.09613281	MINIMUM
4.75444121	223.42404038	0.17984738	SADDLE
180.89367707	36.63216125	0.57044223	SADDLE
358.44768078	34.91133702	1.86818962	SADDLE
178.11543388	214.51547894	2.54416599	MAXIMUM

Download:

MOID Plots

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