Asteroids

2025UT5 help

Last update: 2025-11-09 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.740

Aphelion (Q)

0.996

Eccentricity (e)

0.148

Inclination (i)

2.1

deg

Orbit period (P)

295.3

Earth MOID

0.00220

U parameter

4.9

Next Earth close approach

Date

2042-10-04

Nominal distance (from Earth center)

0.04068

6084977

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

10 - 23*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-10-24

Observatory

ATLAS-MLO, Mauna Loa

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

0.867929

1-sigma variation

0.000004

Unit

Eccentricity (e)

Value

0.147961

1-sigma variation

0.000005

Unit

Inclination (i)

Value

2.0649

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

216.7868

1-sigma variation

1.418E-5

Unit

Arg. of Perihelion (ω)

Value

353.9388

1-sigma variation

0.0003

Unit

Mean Anomaly (M)

Value

213.74523

1-sigma variation

0.00012

Unit

Perihelion distance

Value

0.739509

1-sigma variation

Unit

Aphelion distance

Value

0.996349

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.268016

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.002213

1-sigma variation

Unit

MOID

Value

0.002201

1-sigma variation

Unit

Orbit Period

Value

295.3417

1-sigma variation

Unit

U parameter

Value

4.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.44204E-11	-1.91724E-11	-2.46900E-10	3.95019E-11	-9.97434E-10	4.25633E-10
e	-1.91724E-11	2.54903E-11	3.28280E-10	-5.25311E-11	1.32609E-9	-5.65838E-10
i	-2.46900E-10	3.28280E-10	4.26668E-9	-7.23720E-10	1.70781E-8	-7.22570E-9
Ω	3.95019E-11	-5.25311E-11	-7.23720E-10	2.01092E-10	-2.78761E-9	1.11637E-9
ω	-9.97434E-10	1.32609E-9	1.70781E-8	-2.78761E-9	6.94430E-8	-2.99680E-8
M	4.25633E-10	-5.65838E-10	-7.22570E-9	1.11637E-9	-2.99680E-8	1.33303E-8

Date of computation: 2025-11-09 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

27.018

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

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

0.737281

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-10-24.298946

Unit

Source

[2]

Last Observation

Value

2025-11-09.10787

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

100 (3)

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 2025UT5 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	1952-07-15 18:59	> 1 d	0.1912404	0.1858700	0.0017907
EARTH	1952-11-26 01:12	293.3	0.1362440	0.1301034	0.0020469
EARTH	1956-09-27 23:45	30.4	0.1173372	0.0924596	0.0083098
EARTH	1957-02-04 22:31	> 1 w	0.1822830	0.1726859	0.0032007
EARTH	1969-09-28 16:59	130.6	0.0744533	0.0733713	0.0003607
EARTH	1970-01-22 15:00	> 1 d	0.1593985	0.1535489	0.0019501
EARTH	1978-11-26 13:02	888.4	0.1843974	0.1350154	0.0164682
EARTH	1982-09-28 08:01	181.8	0.1407934	0.0884182	0.0175081
EARTH	1983-02-14 08:57	> 1 w	0.1946128	0.1686634	0.0086665
EARTH	1991-11-27 07:22	1234.3	0.0509731	0.0141741	0.0124000
EARTH	2004-07-18 19:04	> 1 w	0.1883872	0.1757074	0.0042338
EARTH	2004-11-27 22:17	9.3	0.1239536	0.0980470	0.0086379
VENUS	2006-11-06 04:07	> 1 d	0.0363954	0.0245109	0.0049449
EARTH	2008-09-29 12:28	52.1	0.1303231	0.1132166	0.0057073
EARTH	2009-02-09 16:01	> 1 w	0.1883905	0.1804105	0.0026617
EARTH	2021-11-17 23:54	73.3	0.0107063	0.0104141	0.0000975
EARTH	2025-10-24 14:59	< 1 min	0.0039761	0.0039758	0.0000001
EARTH	2042-10-04 06:59	7.1	0.0406756	0.0404773	0.0000661
EARTH	2055-09-30 11:15	23.4	0.0851901	0.0827065	0.0008283
EARTH	2056-01-29 21:52	> 1 d	0.1677970	0.1663899	0.0004692
EARTH	2064-07-24 15:08	> 1 d	0.1798028	0.1781255	0.0005593
EARTH	2064-11-27 11:39	15.4	0.1130508	0.1096075	0.0011482
EARTH	2077-11-26 01:29	257.8	0.0546542	0.0473528	0.0024463
VENUS	2080-09-03 08:48	149.6	0.0264038	0.0257044	0.0002575
EARTH	2090-11-27 13:19	58.0	0.1682335	0.1678117	0.0001406
EARTH	2094-10-02 04:51	5.5	0.0962877	0.0941357	0.0007174
EARTH	2095-01-31 05:34	906.8	0.1708076	0.1702292	0.0001928
EARTH	2107-10-04 03:51	36.5	0.0728585	0.0726842	0.0000581
EARTH	2108-01-24 04:35	> 1 d	0.1573022	0.1563952	0.0003024
EARTH	2116-11-28 12:09	89.6	0.1865197	0.1833504	0.0010566
EARTH	2120-10-02 10:41	8.5	0.1472514	0.1447674	0.0008281
EARTH	2121-02-18 04:14	> 1 d	0.1959355	0.1943305	0.0005355

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
187.60212810	296.85755204	0.00220129	MINIMUM
8.12276847	117.64886526	0.26814075	SADDLE
7.91819032	297.42845092	1.73334077	SADDLE
186.06458803	115.55573440	2.00370690	MAXIMUM

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MOID Plots

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