Asteroids

2025KC1 help

Last update: 2025-05-23 12:45 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.887

Aphelion (Q)

1.540

Eccentricity (e)

0.269

Inclination (i)

8.0

deg

Orbit period (P)

488.3

Earth MOID

0.00714

U parameter

7.5

Next Earth close approach

Date

2025-05-31

Nominal distance (from Earth center)

0.01356

2028433

Maximum Brightness

18.8

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

26.1

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.213499

1-sigma variation

0.000421

Unit

Eccentricity (e)

Value

0.269045

1-sigma variation

0.000336

Unit

Inclination (i)

Value

7.9567

1-sigma variation

0.0082

Unit

Long. of Ascending Node (Ω)

Value

68.0901

1-sigma variation

0.0012

Unit

Arg. of Perihelion (ω)

Value

249.1883

1-sigma variation

0.0119

Unit

Mean Anomaly (M)

Value

299.74094

1-sigma variation

0.04494

Unit

Perihelion distance

Value

0.887013

1-sigma variation

Unit

Aphelion distance

Value

1.539984

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.258094

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.014156

1-sigma variation

Unit

MOID

Value

0.007141

1-sigma variation

Unit

Orbit Period

Value

488.2670

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.77547E-7	1.40486E-7	3.41850E-6	2.78265E-7	-3.21706E-6	1.89146E-5
e	1.40486E-7	1.13078E-7	2.75438E-6	1.74382E-7	-2.14347E-6	1.48720E-5
i	3.41850E-6	2.75438E-6	6.71052E-5	4.17079E-6	-5.15565E-5	3.61745E-4
Ω	2.78265E-7	1.74382E-7	4.17079E-6	1.54012E-6	-1.46544E-5	3.18948E-5
ω	-3.21706E-6	-2.14347E-6	-5.15565E-5	-1.46544E-5	1.42675E-4	-3.62536E-4
M	1.89146E-5	1.48720E-5	3.61745E-4	3.18948E-5	-3.62536E-4	2.01969E-3

Date of computation: 2025-05-23 12:45 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

26.149

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

0.3

Unit

Source

[1]

Normalized RMS of residuals

Value

0.636279

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

2025-05-23.44673

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

31 (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 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	1950-08-03 03:14	> 1 mo	0.1737613	0.1469761	0.0147036
EARTH	1954-08-30 23:15	> 1 mo	0.1741262	0.1423891	0.0151728
EARTH	1958-10-15 19:47	> 1 d	0.1323749	0.0973328	0.0438038
EARTH	1962-10-19 20:45	> 1 d	0.1002929	0.0994959	0.0072937
EARTH	1966-10-23 10:52	> 1 d	0.1218575	0.0990491	0.0374898
EARTH	1970-10-27 12:41	> 1 d	0.1940060	0.0976559	0.0577588
EARTH	2017-05-21 06:28	1431.9	0.1647615	0.1011863	0.0211922
EARTH	2021-05-26 12:23	1166.4	0.0749359	0.0360194	0.0130061
EARTH	2025-05-31 02:12	2.3	0.0135592	0.0135131	0.0000154
EARTH	2029-05-26 09:26	1150.1	0.0780087	0.0389013	0.0130666
EARTH	2033-05-21 00:53	> 1 d	0.1707794	0.1055817	0.0217330
EARTH	2078-10-29 10:33	> 1 d	0.1791846	0.0927393	0.0580191
EARTH	2082-10-25 11:36	> 1 d	0.1104373	0.0940913	0.0336540
EARTH	2086-10-21 19:47	> 1 d	0.0983031	0.0942193	0.0173342
EARTH	2090-10-17 09:41	> 1 d	0.1427713	0.0898839	0.0523350
EARTH	2094-08-24 08:46	> 1 mo	0.1787976	0.1682097	0.0067260
EARTH	2098-07-26 06:25	> 1 mo	0.1694538	0.1149373	0.0254222
EARTH	2102-06-28 08:31	> 1 w	0.1273904	0.0297884	0.0592658
EARTH	2106-06-10 02:16	> 1 w	0.0647922	0.0047321	0.0684246
EARTH	2110-06-04 02:56	> 1 d	0.0178591	0.0085457	0.0325563
EARTH	2114-06-07 02:51	> 1 w	0.0440810	0.0073659	0.0959276
EARTH	2118-06-18 10:04	> 1 mo	0.1017133	0.0074778	0.1385468
EARTH	2122-07-14 15:02	> 1 mo	0.1537931	0.0723318	0.0947042

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
306.90697679	147.81399516	0.00714075	MINIMUM
55.87828141	286.08420971	0.09830357	MINIMUM
5.20915104	222.49696383	0.17778254	SADDLE
181.03711559	35.29889293	0.57617310	SADDLE
358.66223648	33.66214370	1.86955915	SADDLE
178.23586732	213.16730009	2.54835476	MAXIMUM

Download:

MOID Plots

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