Asteroids

2025DO27 help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.692

Aphelion (Q)

2.198

Eccentricity (e)

0.521

Inclination (i)

2.8

deg

Orbit period (P)

634.4

Earth MOID

0.03830

U parameter

8.3

Next Earth close approach

Date

2030-09-12

Nominal distance (from Earth center)

0.1169

17488240

Maximum Brightness

23.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.8

mag

Diameter

29 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-27

Observatory

Pan-STARRS 1, 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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.444869

1-sigma variation

0.002152

Unit

Eccentricity (e)

Value

0.521331

1-sigma variation

0.000987

Unit

Inclination (i)

Value

2.8201

1-sigma variation

0.0062

Unit

Long. of Ascending Node (Ω)

Value

112.6192

1-sigma variation

0.0440

Unit

Arg. of Perihelion (ω)

Value

145.5832

1-sigma variation

0.0415

Unit

Mean Anomaly (M)

Value

359.11816

1-sigma variation

0.02278

Unit

Perihelion distance

Value

0.691614

1-sigma variation

Unit

Aphelion distance

Value

2.198124

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.863776

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.280527

1-sigma variation

Unit

MOID

Value

0.038303

1-sigma variation

Unit

Orbit Period

Value

634.3677

1-sigma variation

Unit

U parameter

Value

8.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.63089E-6	2.12351E-6	1.33433E-5	9.46546E-5	-8.93687E-5	4.90113E-5
e	2.12351E-6	9.73743E-7	6.11863E-6	4.34042E-5	-4.09803E-5	2.24743E-5
i	1.33433E-5	6.11863E-6	3.84484E-5	2.72763E-4	-2.57531E-4	1.41220E-4
Ω	9.46546E-5	4.34042E-5	2.72763E-4	1.93533E-3	-1.82727E-3	1.00177E-3
ω	-8.93687E-5	-4.09803E-5	-2.57531E-4	-1.82727E-3	1.72525E-3	-9.45832E-4
M	4.90113E-5	2.24743E-5	1.41220E-4	1.00177E-3	-9.45832E-4	5.18714E-4

Date of computation: 2025-07-29 02:36 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

24.834

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

29 - 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

170

Unit

Source

[1]

Normalized RMS of residuals

Value

0.63154

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-27.367363

Unit

Source

[2]

Last Observation

Value

2025-03-13.991714

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

30 (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 2025DO27 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
VENUS	1950-11-27 02:11	> 1 mo	0.0387893	0.0026682	2.9747204
EARTH	1954-03-31 12:01	> 1 mo	0.1756465	0.0419933	12.7663226
EARTH	1959-09-13 20:26	> 1 mo	0.1467959	0.0373192	14.4790960
VENUS	1978-07-19 14:56	> 1 mo	0.0120581	0.0118045	0.0815745
MARS	1979-12-14 23:13	> 1 w	0.0458595	0.0362759	0.1966415
EARTH	1980-03-05 18:25	> 1 w	0.1683761	0.0423855	0.4435841
EARTH	1985-08-19 22:15	> 1 mo	0.1702042	0.0429676	0.3592767
MARS	1994-06-09 05:06	> 1 d	0.0453289	0.0445993	0.0218616
EARTH	1999-03-18 09:27	> 1 d	0.0618281	0.0413091	0.0166599
EARTH	2004-09-09 04:43	> 1 w	0.0742417	0.0377013	0.1754483
VENUS	2006-04-04 03:27	> 1 mo	0.0313995	0.0092403	0.1137185
EARTH	2025-03-15 18:44	< 1 min	0.0441085	0.0438670	0.0000805
VENUS	2025-04-25 07:57	200.8	0.0222648	0.0222144	0.0000168
EARTH	2030-09-12 07:58	> 1 d	0.1169017	0.0386974	0.0674352
VENUS	2044-06-29 13:25	> 1 w	0.0442608	0.0255222	0.1883624
VENUS	2054-11-01 14:46	> 1 w	0.0136461	0.0119865	0.0283867
EARTH	2058-03-19 09:02	> 1 w	0.0695349	0.0446618	0.1674869
EARTH	2065-03-06 14:41	> 1 w	0.1716212	0.0431717	0.4768307
EARTH	2070-09-06 17:48	> 1 w	0.0403250	0.0392789	0.0930533
EARTH	2105-03-16 08:29	> 1 mo	0.0455513	0.0441920	0.1364229
VENUS	2105-05-24 11:47	> 1 mo	0.0306312	0.0244722	0.3268673
EARTH	2112-03-07 04:34	> 1 mo	0.1856615	0.0428857	0.7862174
VENUS	2115-11-09 15:35	> 1 mo	0.0359153	0.0245084	0.6549393
EARTH	2117-09-12 00:49	> 1 mo	0.0883572	0.0413366	0.7344303
EARTH	2124-09-06 15:53	> 1 w	0.0408347	0.0396761	0.0910257

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
54.24459690	241.55871139	0.03830330	MINIMUM
306.59313141	71.28051728	0.04320862	MINIMUM
0.57140469	156.47244925	0.32410066	SADDLE
180.19011723	336.27812769	1.21379170	SADDLE
0.79491736	336.89594715	1.67644461	SADDLE
180.31686562	156.35378954	3.21275304	MAXIMUM

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MOID Plots

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