Asteroids

2025DO1 help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.748

Aphelion (Q)

1.068

Eccentricity (e)

0.176

Inclination (i)

1.7

deg

Orbit period (P)

315.9

Earth MOID

0.00484

U parameter

6.6

Next Earth close approach

Date

2037-12-05

Nominal distance (from Earth center)

0.18348

27447547

Maximum Brightness

30.5

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

2025-02-20

Observatory

Mt. Lemmon Survey

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

0.907715

1-sigma variation

0.000059

Unit

Eccentricity (e)

Value

0.176135

1-sigma variation

0.000141

Unit

Inclination (i)

Value

1.6821

1-sigma variation

0.0015

Unit

Long. of Ascending Node (Ω)

Value

326.5840

1-sigma variation

0.0010

Unit

Arg. of Perihelion (ω)

Value

42.1985

1-sigma variation

0.0064

Unit

Mean Anomaly (M)

Value

81.53604

1-sigma variation

0.02561

Unit

Perihelion distance

Value

0.747835

1-sigma variation

Unit

Aphelion distance

Value

1.067595

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.234903

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.023124

1-sigma variation

Unit

MOID

Value

0.004844

1-sigma variation

Unit

Orbit Period

Value

315.8805

1-sigma variation

Unit

U parameter

Value

6.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.43775E-9	-8.23702E-9	-8.78308E-8	-5.75456E-8	3.71966E-7	-1.50023E-6
e	-8.23702E-9	1.97408E-8	2.10496E-7	1.38111E-7	-8.90119E-7	3.59250E-6
i	-8.78308E-8	2.10496E-7	2.24466E-6	1.47358E-6	-9.49200E-6	3.83062E-5
Ω	-5.75456E-8	1.38111E-7	1.47358E-6	9.81656E-7	-6.17368E-6	2.50014E-5
ω	3.71966E-7	-8.90119E-7	-9.49200E-6	-6.17368E-6	4.05448E-5	-1.62876E-4
M	-1.50023E-6	3.59250E-6	3.83062E-5	2.50014E-5	-1.62876E-4	6.55740E-4

Date of computation: 2025-11-24 16:53 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

27.062

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

349

Unit

Source

[1]

Normalized RMS of residuals

Value

0.515332

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-20.322355

Unit

Source

[2]

Last Observation

Value

2025-03-03.163658

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

42 (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 2025DO1 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
EARTH	1951-02-05 18:31	> 1 mo	0.0197946	0.0073948	3.7542707
EARTH	1958-02-10 12:01	> 1 mo	0.0227530	0.0072621	1.0105243
EARTH	1964-12-05 01:40	> 1 mo	0.1805022	0.0029373	0.1106586
EARTH	1965-04-16 11:35	> 1 mo	0.0683485	0.0428117	0.0450124
EARTH	1972-05-17 06:25	> 1 w	0.0454424	0.0296114	0.5966573
EARTH	1985-02-05 01:41	> 1 w	0.1090262	0.0072568	0.5329384
EARTH	1992-02-10 09:02	> 1 w	0.0222220	0.0068181	0.1100106
EARTH	1999-05-14 16:08	> 1 d	0.0302860	0.0296277	0.0048465
EARTH	2012-02-12 11:37	> 1 d	0.0294739	0.0171680	0.0041729
EARTH	2019-05-14 10:54	108.4	0.1543436	0.1436466	0.0035711
EARTH	2025-02-11 18:37	< 1 min	0.0293817	0.0293088	0.0000243
EARTH	2037-12-05 06:15	> 1 w	0.1834755	0.1728612	0.0035382
EARTH	2038-04-17 12:48	> 1 d	0.0638596	0.0571175	0.0023315
EARTH	2044-02-05 23:07	272.7	0.1549707	0.1328478	0.0073752
EARTH	2051-05-15 03:52	14.7	0.0831898	0.0709673	0.0041225
EARTH	2057-02-11 16:52	396.3	0.0293429	0.0279140	0.0004773
EARTH	2070-05-13 17:21	191.2	0.1059135	0.0804838	0.0085961
EARTH	2075-12-26 07:10	> 1 w	0.1543883	0.1356518	0.0062493
EARTH	2076-03-26 23:26	> 1 d	0.0714268	0.0708042	0.0002524
EARTH	2082-02-03 19:04	82.3	0.0899081	0.0740306	0.0052943
EARTH	2095-05-09 03:28	> 1 d	0.0329025	0.0293055	0.0029630
EARTH	2101-02-08 22:57	> 1 d	0.0152524	0.0031540	0.0212781
EARTH	2107-02-06 19:21	> 1 w	0.0029454	0.0028077	0.0665439
EARTH	2114-05-16 03:45	> 1 mo	0.0907737	0.0416549	80.4505144
EARTH	2120-02-05 17:28	> 1 mo	0.1107244	0.0040642	147.5648197

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
120.00609896	35.32907997	0.00484394	MINIMUM
229.32182068	128.74544109	0.02960288	MINIMUM
176.85269668	83.90717732	0.07102374	SADDLE
353.15956414	260.60590957	0.25515676	SADDLE
352.78363053	80.14791847	1.74660101	SADDLE
174.76846379	262.16118764	2.06977694	MAXIMUM

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MOID Plots

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