Asteroids

2025UL help

Last update: 2025-10-19 13:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.023

Aphelion (Q)

1.658

Eccentricity (e)

0.237

Inclination (i)

21.2

deg

Orbit period (P)

567.1

Earth MOID

0.02729

U parameter

7.5

Next Earth close approach

Date

2039-10-10

Nominal distance (from Earth center)

0.16859

25220569

Maximum Brightness

24.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.8

mag

Diameter

18 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-10-17

Observatory

Kitt Peak-Bok

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

1.340784

1-sigma variation

0.000564

Unit

Eccentricity (e)

Value

0.236686

1-sigma variation

0.000306

Unit

Inclination (i)

Value

21.1728

1-sigma variation

0.0145

Unit

Long. of Ascending Node (Ω)

Value

205.7966

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

177.7566

1-sigma variation

0.0046

Unit

Mean Anomaly (M)

Value

21.95632

1-sigma variation

0.01220

Unit

Perihelion distance

Value

1.023439

1-sigma variation

Unit

Aphelion distance

Value

1.658129

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.652832

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.027347

1-sigma variation

Unit

MOID

Value

0.027290

1-sigma variation

Unit

Orbit Period

Value

567.0701

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.18556E-7	1.72727E-7	8.16862E-6	-9.38526E-8	-1.83831E-6	-6.79758E-6
e	1.72727E-7	9.36559E-8	4.42914E-6	-5.08891E-8	-9.96198E-7	-3.68612E-6
i	8.16862E-6	4.42914E-6	2.09506E-4	-2.40653E-6	-4.76352E-5	-1.74011E-4
Ω	-9.38526E-8	-5.08891E-8	-2.40653E-6	2.76871E-8	5.29831E-7	2.00973E-6
ω	-1.83831E-6	-9.96198E-7	-4.76352E-5	5.29831E-7	2.14402E-5	3.27480E-5
M	-6.79758E-6	-3.68612E-6	-1.74011E-4	2.00973E-6	3.27480E-5	1.48928E-4

Date of computation: 2025-10-19 13:53 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

25.846

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

0.587565

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-10-17.243487

Unit

Source

[2]

Last Observation

Value

2025-10-19.299627

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

75 (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 2025UL 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	1966-10-24 07:37	> 1 w	0.1004353	0.0229650	0.3995455
EARTH	1980-10-17 15:02	> 1 w	0.0331599	0.0271950	0.0773078
EARTH	2025-10-19 06:52	< 1 min	0.0278186	0.0277546	0.0000213
EARTH	2039-10-10 03:46	> 1 d	0.1685891	0.0125413	0.0558167
EARTH	2070-10-25 10:46	> 1 d	0.1153401	0.0209965	0.1318504
EARTH	2084-10-16 20:57	> 1 d	0.0462858	0.0266093	0.0857451
EARTH	2115-10-27 02:33	> 1 w	0.1212303	0.0204214	0.1393605

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
1.56086037	285.18502864	0.02728992	MINIMUM
168.68431570	93.48091894	0.65629726	SADDLE
353.57375246	95.72969456	2.02664039	SADDLE
178.45095083	280.67925076	2.65528221	MAXIMUM

Download:

MOID Plots

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