Asteroids

2025OL1 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.803

Aphelion (Q)

1.088

Eccentricity (e)

0.151

Inclination (i)

13.3

deg

Orbit period (P)

336.0

Earth MOID

0.01424

U parameter

4.6

Next Earth close approach

Date

2036-02-08

Nominal distance (from Earth center)

0.13725

20532933

Maximum Brightness

30.3

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.1

mag

Diameter

25 - 60*

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

0.945827

1-sigma variation

0.000003

Unit

Eccentricity (e)

Value

0.150602

1-sigma variation

0.000058

Unit

Inclination (i)

Value

13.2619

1-sigma variation

0.0081

Unit

Long. of Ascending Node (Ω)

Value

125.9025

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

313.3061

1-sigma variation

0.0097

Unit

Mean Anomaly (M)

Value

149.35977

1-sigma variation

0.01780

Unit

Perihelion distance

Value

0.803383

1-sigma variation

Unit

Aphelion distance

Value

1.088271

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.147166

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.016009

1-sigma variation

Unit

MOID

Value

0.014235

1-sigma variation

Unit

Orbit Period

Value

335.9820

1-sigma variation

Unit

U parameter

Value

4.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.47386E-12	1.56838E-10	2.18638E-8	2.71540E-10	-2.62368E-8	4.79890E-8
e	1.56838E-10	3.40110E-9	4.73058E-7	5.85999E-9	-5.67147E-7	1.03773E-6
i	2.18638E-8	4.73058E-7	6.58111E-5	8.15418E-7	-7.88982E-5	1.44362E-4
Ω	2.71540E-10	5.85999E-9	8.15418E-7	1.01207E-8	-9.77528E-7	1.78858E-6
ω	-2.62368E-8	-5.67147E-7	-7.88982E-5	-9.77528E-7	9.46056E-5	-1.73096E-4
M	4.79890E-8	1.03773E-6	1.44362E-4	1.78858E-6	-1.73096E-4	3.16708E-4

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

25.119

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

25 - 60*

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

0.631252

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-07-21.281505

Unit

Source

[2]

Last Observation

Value

2025-07-29.338582

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

98 (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 2025OL1 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	1952-01-22 19:25	> 1 d	0.1525011	0.1420328	0.0053879
EARTH	1952-07-26 18:12	1432.6	0.0880585	0.0511683	0.0127276
EARTH	1965-01-03 12:37	938.1	0.1947305	0.1921620	0.0008818
EARTH	1965-07-31 05:27	25.3	0.0172085	0.0164068	0.0003518
EARTH	1977-02-12 10:31	119.7	0.1314762	0.1314589	0.0000067
EARTH	1977-07-08 22:30	48.4	0.1961373	0.1960076	0.0000433
EARTH	1990-07-31 15:28	10.2	0.0373055	0.0348879	0.0008126
EARTH	2002-01-03 23:28	284.9	0.1964521	0.1954116	0.0003488
EARTH	2002-07-31 10:18	5.5	0.0262744	0.0251012	0.0003953
EARTH	2013-02-20 22:59	156.8	0.1454914	0.1451676	0.0001106
EARTH	2025-01-10 03:10	80.2	0.1837185	0.1833258	0.0001312
EARTH	2025-07-30 16:28	< 1 s	0.0138875	0.0138631	0.0000081
EARTH	2036-02-08 06:31	43.0	0.1372542	0.1372030	0.0000172
EARTH	2036-07-18 12:34	35.5	0.1499331	0.1489698	0.0003212
EARTH	2047-03-07 11:52	53.4	0.1872686	0.1863556	0.0003053
EARTH	2048-07-29 17:15	12.7	0.1481070	0.1461286	0.0006596
EARTH	2059-01-15 05:58	255.9	0.1747123	0.1741842	0.0001779
EARTH	2059-07-30 11:01	30.7	0.0288123	0.0269809	0.0006169
EARTH	2070-03-05 08:52	242.2	0.1808210	0.1789258	0.0006422
EARTH	2071-07-30 17:44	29.8	0.1368710	0.1330703	0.0012672
EARTH	2082-02-11 18:03	875.5	0.1347295	0.1347131	0.0000214
EARTH	2082-07-12 08:55	510.3	0.1813102	0.1751912	0.0020491
EARTH	2094-01-30 00:14	1357.0	0.1441132	0.1416218	0.0009471
EARTH	2094-07-23 03:52	479.5	0.1209560	0.1120853	0.0029703
EARTH	2106-02-01 16:05	1113.4	0.1416150	0.1397492	0.0007064
EARTH	2106-07-22 06:11	435.1	0.1338193	0.1267420	0.0023688
EARTH	2118-02-16 03:01	407.0	0.1358557	0.1355649	0.0001157

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
235.09483137	205.60935146	0.01423519	MINIMUM
55.12164279	38.45459940	0.13582349	MINIMUM
138.59314303	120.40292655	0.24005894	SADDLE
329.74066675	303.23619153	0.26617944	SADDLE
350.59584038	147.39251704	1.81042353	SADDLE
182.88552028	339.93510154	2.06603339	MAXIMUM

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MOID Plots

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