Asteroids

2025YU5 help

Last update: 2025-12-30 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.666

Aphelion (Q)

1.052

Eccentricity (e)

0.225

Inclination (i)

11.1

deg

Orbit period (P)

290.9

Earth MOID

0.00966

U parameter

6.8

Next Earth close approach

Date

2030-01-02

Nominal distance (from Earth center)

0.03808

5696129

Maximum Brightness

23.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.1

mag

Diameter

10 - 23*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-12-25

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.859175

1-sigma variation

0.000067

Unit

Eccentricity (e)

Value

0.224598

1-sigma variation

0.000181

Unit

Inclination (i)

Value

11.0641

1-sigma variation

0.0114

Unit

Long. of Ascending Node (Ω)

Value

277.8168

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

323.7837

1-sigma variation

0.0013

Unit

Mean Anomaly (M)

Value

185.37833

1-sigma variation

0.01211

Unit

Perihelion distance

Value

0.666206

1-sigma variation

Unit

Aphelion distance

Value

1.052145

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.327428

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.012764

1-sigma variation

Unit

MOID

Value

0.009661

1-sigma variation

Unit

Orbit Period

Value

290.8848

1-sigma variation

Unit

U parameter

Value

6.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.45220E-9	-1.20506E-8	-7.62411E-7	2.79828E-8	6.92956E-8	-8.01236E-7
e	-1.20506E-8	3.26403E-8	2.06514E-6	-7.58348E-8	-1.91534E-7	2.17633E-6
i	-7.62411E-7	2.06514E-6	1.30662E-4	-4.79830E-6	-1.21298E-5	1.37714E-4
Ω	2.79828E-8	-7.58348E-8	-4.79830E-6	1.76301E-7	4.51731E-7	-5.06715E-6
ω	6.92956E-8	-1.91534E-7	-1.21298E-5	4.51731E-7	1.76096E-6	-1.37841E-5
M	-8.01236E-7	2.17633E-6	1.37714E-4	-5.06715E-6	-1.37841E-5	1.46722E-4

Date of computation: 2025-12-30 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

27.073

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

10 - 23*

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

0.547922

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-12-25.48119

Unit

Source

[2]

Last Observation

Value

2025-12-29.303731

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

29 (1)

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 2025YU5 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
VENUS	1960-03-06 02:53	> 1 d	0.0383856	0.0383352	0.0018030
EARTH	1962-11-16 02:44	> 1 d	0.1701272	0.1457432	0.0130596
EARTH	1966-12-06 02:57	> 1 d	0.1342315	0.0901058	0.0187598
EARTH	1970-12-20 21:05	> 1 d	0.0867726	0.0317926	0.0246953
EARTH	1974-12-29 06:54	> 1 d	0.0361195	0.0122670	0.0243718
EARTH	1978-12-31 21:06	296.3	0.0103861	0.0099746	0.0010817
EARTH	1983-01-01 15:10	1108.5	0.0150347	0.0105729	0.0121336
EARTH	1987-01-03 03:47	35.1	0.0904851	0.0278978	0.0216344
EARTH	1991-01-01 17:24	577.1	0.1886091	0.1226205	0.0220676
EARTH	2017-11-21 00:35	> 1 d	0.1601705	0.1535225	0.0023038
EARTH	2021-12-17 18:13	697.0	0.0963883	0.0903917	0.0020108
EARTH	2025-12-30 20:11	< 1 min	0.0144797	0.0144397	0.0000133
EARTH	2030-01-02 00:19	96.6	0.0380763	0.0301035	0.0026891
EARTH	2034-01-02 13:13	35.1	0.1115327	0.1026895	0.0029501
EARTH	2038-01-01 03:15	77.5	0.1990789	0.1911248	0.0026518
EARTH	2064-10-28 17:58	315.4	0.1876712	0.1851177	0.0008683
VENUS	2065-05-17 05:19	418.2	0.0395824	0.0395580	0.0000683
EARTH	2068-11-24 06:37	1129.2	0.1539362	0.1484993	0.0018500
EARTH	2072-12-14 13:09	> 1 d	0.1060452	0.0946586	0.0038495
EARTH	2076-12-27 11:41	1051.2	0.0426668	0.0254543	0.0059483
EARTH	2080-12-31 17:40	287.0	0.0143555	0.0105578	0.0029910
EARTH	2085-01-02 00:32	42.8	0.1342554	0.1273564	0.0023006
VENUS	2105-12-26 04:48	> 1 d	0.0438662	0.0423500	0.0030979
EARTH	2107-11-11 19:18	> 1 d	0.1717731	0.1614342	0.0041304
EARTH	2111-12-13 01:56	> 1 d	0.1147927	0.0857086	0.0104739
EARTH	2115-12-30 20:44	> 1 d	0.0282944	0.0119286	0.0171930
EARTH	2120-01-03 19:00	84.9	0.0497725	0.0347176	0.0051207
EARTH	2124-01-03 15:26	149.7	0.1455805	0.1071991	0.0128264

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
226.99351073	358.45097034	0.00966097	MINIMUM
351.30392238	128.73729233	0.36237984	SADDLE
1.36018809	321.59077189	1.65104728	SADDLE
184.43484931	144.86893761	2.06369618	MAXIMUM

Download:

MOID Plots

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