Asteroids

2025KX2 help

Last update: 2025-05-28 13:00 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.964

Aphelion (Q)

1.187

Eccentricity (e)

0.104

Inclination (i)

2.3

deg

Orbit period (P)

407.4

Earth MOID

0.00071

U parameter

5.7

Next Earth close approach

Date

2031-02-27

Nominal distance (from Earth center)

0.07847

11739184

Maximum Brightness

27.1

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

29.9

mag

Diameter

2.8 - 6*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-05-24

Observatory

Pan-STARRS 2, 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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.075457

1-sigma variation

0.000024

Unit

Eccentricity (e)

Value

0.103672

1-sigma variation

0.000017

Unit

Inclination (i)

Value

2.3466

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

239.5202

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

300.7968

1-sigma variation

0.0070

Unit

Mean Anomaly (M)

Value

35.39581

1-sigma variation

0.00717

Unit

Perihelion distance

Value

0.963962

1-sigma variation

Unit

Aphelion distance

Value

1.186952

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.001470

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.135548

1-sigma variation

Unit

MOID

Value

0.000712

1-sigma variation

Unit

Orbit Period

Value

407.3690

1-sigma variation

Unit

U parameter

Value

5.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.66671E-10	4.11402E-10	2.36783E-9	-4.75016E-9	1.66942E-7	-1.70535E-7
e	4.11402E-10	2.99085E-10	1.73715E-9	-3.40368E-9	1.20992E-7	-1.23700E-7
i	2.36783E-9	1.73715E-9	1.07044E-8	-1.78343E-8	6.88353E-7	-7.07815E-7
Ω	-4.75016E-9	-3.40368E-9	-1.78343E-8	4.48832E-8	-1.42229E-6	1.44131E-6
ω	1.66942E-7	1.20992E-7	6.88353E-7	-1.42229E-6	4.92864E-5	-5.02942E-5
M	-1.70535E-7	-1.23700E-7	-7.07815E-7	1.44131E-6	-5.02942E-5	5.13493E-5

Date of computation: 2025-05-28 13:00 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

29.882

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

2.8 - 6*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.717215

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-05-24.522462

Unit

Source

[2]

Last Observation

Value

2025-05-28.38177

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

61 (4)

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 2025KX2 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	1960-02-15 19:43	> 1 mo	0.0411149	0.0385808	0.4673250
EARTH	1960-07-20 09:35	> 1 mo	0.1313458	0.0219861	0.7842424
EARTH	1968-12-08 02:09	> 1 mo	0.1461097	0.0807077	0.1938735
EARTH	1969-06-03 19:47	> 1 mo	0.0544207	0.0031033	0.4660649
EARTH	1986-01-03 09:46	> 1 w	0.1124119	0.1093649	0.0011688
EARTH	1986-05-19 21:27	> 1 d	0.0099430	0.0014693	0.0028754
EARTH	1995-10-15 13:54	> 1 d	0.1839538	0.1826737	0.0004349
EARTH	2005-01-28 15:02	211.8	0.0963991	0.0840366	0.0041807
EARTH	2005-08-17 22:18	> 1 d	0.1609675	0.1570548	0.0013047
EARTH	2015-01-09 01:50	> 1 d	0.0885938	0.0842319	0.0014740
EARTH	2015-04-18 23:32	> 1 d	0.0396953	0.0369776	0.0009208
EARTH	2024-12-08 15:07	90.3	0.1215221	0.1214775	0.0000149
EARTH	2025-05-22 05:23	< 1 min	0.0024569	0.0024561	0.0000003
EARTH	2031-02-27 03:48	90.8	0.0784716	0.0762963	0.0007267
EARTH	2031-07-25 05:12	> 1 d	0.1651146	0.1638469	0.0004226
EARTH	2056-05-24 01:00	155.7	0.0082085	0.0073534	0.0002857
EARTH	2067-05-22 23:47	> 1 w	0.0057980	0.0011611	0.0399876
EARTH	2091-03-20 13:37	> 1 mo	0.0412332	0.0166967	19.3877647
EARTH	2096-06-02 06:38	> 1 mo	0.0347903	0.0045693	45.3667427
EARTH	2115-03-08 09:03	> 1 mo	0.1861141	0.0191633	652.8145901
EARTH	2120-06-06 22:07	> 1 mo	0.0534141	0.0051303	668.1510327

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
55.11835524	137.60464792	0.00071164	MINIMUM
319.49356940	33.02664934	0.03950334	MINIMUM
357.07783169	73.92810141	0.04739754	SADDLE
185.14567146	263.52723289	0.18825206	SADDLE
9.10588271	267.23535545	1.96562383	SADDLE
187.77143094	85.89684122	2.18420650	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2025KX2

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2101-02-07.041	88471.041	-0.180	3.58 ± 0.957	4.68E7	3.78E-8	4.27E-11	-10.14
2118-05-12.562	94774.562	-0.174	3.88 ± 0.000	1.32E8	1.36E-8	1.54E-11	-10.67
2124-04-11.821	96935.821	0.983	4.29 ± 1.912	9.39E4	1.13E-5	1.28E-8	-7.78


Based on 61 optical observations (of which 4 are rejected as outliers) from 2025/05/24.522 to 2025/05/28.382.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 4.28 and 4.28 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20250528 133435.604 UTC.

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Download Impactor Table as: