Asteroids

2025OU2 help

Last update: 2025-07-29 13:15 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Amor

Perihelion (q)

1.047

Aphelion (Q)

1.609

Eccentricity (e)

0.212

Inclination (i)

0.8

deg

Orbit period (P)

559.0

Earth MOID

0.03484

U parameter

7.6

Next Earth close approach

Date

2048-06-26

Nominal distance (from Earth center)

0.143

21392175

Maximum Brightness

24.2

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.9

mag

Diameter

18 - 40*

Taxonomic type

Rotation period (T)

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

1.327967

1-sigma variation

0.000575

Unit

Eccentricity (e)

Value

0.211628

1-sigma variation

0.000312

Unit

Inclination (i)

Value

0.7838

1-sigma variation

0.0010

Unit

Long. of Ascending Node (Ω)

Value

24.5626

1-sigma variation

0.0285

Unit

Arg. of Perihelion (ω)

Value

281.1228

1-sigma variation

0.0322

Unit

Mean Anomaly (M)

Value

305.23377

1-sigma variation

0.03559

Unit

Perihelion distance

Value

1.046933

1-sigma variation

Unit

Aphelion distance

Value

1.609002

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.222159

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.319684

1-sigma variation

Unit

MOID

Value

0.034836

1-sigma variation

Unit

Orbit Period

Value

558.9584

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.31147E-7	1.79721E-7	5.69323E-7	-8.63860E-6	8.67523E-6	2.04189E-5
e	1.79721E-7	9.75389E-8	3.09012E-7	-4.70592E-6	4.72900E-6	1.10798E-5
i	5.69323E-7	3.09012E-7	9.80589E-7	-1.58587E-5	1.60982E-5	3.49931E-5
Ω	-8.63860E-6	-4.70592E-6	-1.58587E-5	8.10246E-4	-9.14388E-4	-4.67139E-4
ω	8.67523E-6	4.72900E-6	1.60982E-5	-9.14388E-4	1.03739E-3	4.57423E-4
M	2.04189E-5	1.10798E-5	3.49931E-5	-4.67139E-4	4.57423E-4	1.26666E-3

Date of computation: 2025-07-29 13:15 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

25.883

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

18 - 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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.371801

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-07-25.0963

Unit

Source

[2]

Last Observation

Value

2025-07-29.14874

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

18 (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 2025OU2 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	1976-08-11 15:24	> 1 w	0.0534595	0.0154387	0.0478815
MARS	1998-08-02 22:30	> 1 w	0.0447820	0.0232529	0.0433067
EARTH	1999-06-29 01:33	> 1 w	0.1186585	0.0146307	0.0872313
EARTH	2025-07-28 23:50	5.9	0.0343090	0.0341789	0.0000434
EARTH	2048-06-26 12:35	> 1 d	0.1429979	0.0147283	0.0811379
EARTH	2074-08-06 20:52	> 1 d	0.0397127	0.0285237	0.0038976
EARTH	2097-08-31 13:12	> 1 d	0.1933846	0.0125998	0.1445470
EARTH	2117-07-13 22:29	> 1 w	0.0536432	0.0140993	0.0706494
MARS	2122-09-29 11:06	> 1 d	0.0437130	0.0214553	0.0090921

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
358.68860313	202.16533971	0.03483580	MINIMUM
178.97774269	22.40571742	0.62432178	SADDLE
358.47986998	21.89248791	2.03176957	SADDLE
178.96462913	202.38860563	2.62394457	MAXIMUM

Download:

MOID Plots

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