Asteroids

2025OD1 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.631

Aphelion (Q)

1.476

Eccentricity (e)

0.401

Inclination (i)

3.5

deg

Orbit period (P)

395.1

Earth MOID

0.02238

U parameter

7.9

Next Earth close approach

Date

2029-03-07

Nominal distance (from Earth center)

0.12205

18258872

Maximum Brightness

23.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.6

mag

Diameter

30 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-07-21

Observatory

MAPS, San Pedro de Atacama

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.053742

1-sigma variation

0.000516

Unit

Eccentricity (e)

Value

0.400961

1-sigma variation

0.000752

Unit

Inclination (i)

Value

3.5313

1-sigma variation

0.0090

Unit

Long. of Ascending Node (Ω)

Value

107.6809

1-sigma variation

0.0117

Unit

Arg. of Perihelion (ω)

Value

309.8864

1-sigma variation

0.0166

Unit

Mean Anomaly (M)

Value

222.88801

1-sigma variation

0.11069

Unit

Perihelion distance

Value

0.631233

1-sigma variation

Unit

Aphelion distance

Value

1.476251

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.280176

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.173899

1-sigma variation

Unit

MOID

Value

0.022382

1-sigma variation

Unit

Orbit Period

Value

395.0933

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.66142E-7	3.87684E-7	4.61819E-6	5.99830E-6	-8.45932E-6	-5.71030E-5
e	3.87684E-7	5.65103E-7	6.72079E-6	8.70727E-6	-1.22675E-5	-8.31616E-5
i	4.61819E-6	6.72079E-6	8.02526E-5	1.04628E-4	-1.47764E-4	-9.91216E-4
Ω	5.99830E-6	8.70727E-6	1.04628E-4	1.37734E-4	-1.95232E-4	-1.28860E-3
ω	-8.45932E-6	-1.22675E-5	-1.47764E-4	-1.95232E-4	2.77142E-4	1.81794E-3
M	-5.71030E-5	-8.31616E-5	-9.91216E-4	-1.28860E-3	1.81794E-3	1.22530E-2

Date of computation: 2026-03-17 23:26 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

24.639

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

30 - 70*

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

265

Unit

Source

[1]

Normalized RMS of residuals

Value

0.536543

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-07-21.21537

Unit

Source

[2]

Last Observation

Value

2025-07-28.601042

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

23 (2)

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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2025OD1 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	1950-08-03 19:42	> 1 mo	0.1500706	0.0219264	12.0612339
VENUS	1961-07-20 23:21	> 1 w	0.0065924	0.0020050	0.1587201
EARTH	1966-02-27 20:50	> 1 mo	0.0671944	0.0486181	1.1329695
EARTH	1975-08-02 20:05	> 1 mo	0.1792526	0.0245295	3.4384962
EARTH	1978-02-25 23:58	> 1 mo	0.1032641	0.0491158	3.4167924
EARTH	1987-08-04 11:11	> 1 w	0.1165769	0.0224858	2.9283034
VENUS	1990-01-12 09:59	> 1 mo	0.0272702	0.0218617	1.2518639
EARTH	1990-02-23 21:14	> 1 d	0.1739106	0.0507590	1.8578111
EARTH	1999-07-31 03:35	> 1 d	0.0312892	0.0219780	0.0612821
VENUS	1999-09-09 05:47	> 1 w	0.0118356	0.0014215	0.0958650
EARTH	2003-03-08 08:29	> 1 d	0.1329406	0.0493721	0.0909098
VENUS	2008-07-02 17:58	> 1 w	0.0385178	0.0215054	0.0993476
EARTH	2012-07-31 00:33	> 1 d	0.0247069	0.0222879	0.0188437
EARTH	2016-03-08 17:35	> 1 d	0.1524754	0.0587050	0.0360508
EARTH	2025-07-31 08:39	< 1 min	0.0250119	0.0248565	0.0000518
EARTH	2029-03-07 20:06	763.4	0.1220530	0.0885887	0.0116036
EARTH	2038-07-28 00:56	> 1 d	0.1043885	0.0224411	0.0401389
EARTH	2042-03-04 10:19	> 1 d	0.0561865	0.0500739	0.0176991
EARTH	2051-07-25 22:27	> 1 d	0.1617116	0.0318052	0.0453912
VENUS	2053-11-02 18:27	> 1 w	0.0275937	0.0006221	0.0468266
EARTH	2055-03-02 13:09	> 1 d	0.0554352	0.0505600	0.0087554
EARTH	2064-07-24 18:07	> 1 d	0.1712843	0.0226754	0.1106159
EARTH	2068-03-02 03:23	> 1 d	0.0529168	0.0502085	0.0468287
VENUS	2076-07-31 17:46	> 1 w	0.0366734	0.0007047	0.3625551
EARTH	2077-07-25 07:27	> 1 w	0.1657217	0.0231576	0.2282603
EARTH	2081-03-01 08:27	> 1 d	0.0685106	0.0630831	0.0018171
EARTH	2094-02-26 06:10	> 1 w	0.1800113	0.0502967	0.5924240
EARTH	2104-08-05 01:55	> 1 d	0.1190272	0.0241071	0.5510278
VENUS	2107-12-17 08:58	> 1 mo	0.0367393	0.0007467	0.5710565
EARTH	2117-07-31 14:58	> 1 mo	0.0439471	0.0236177	0.8322081
VENUS	2121-01-27 14:18	> 1 mo	0.0257752	0.0202615	0.7824953
EARTH	2121-03-06 15:35	> 1 mo	0.0690713	0.0505482	0.7872291

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
274.72370075	207.44269966	0.02230988	MINIMUM
80.86976383	60.34268893	0.05019251	MINIMUM
356.71762812	312.45038696	0.35955555	SADDLE
178.37345291	134.77720283	0.46679186	SADDLE
357.20534537	133.20933059	1.64370683	SADDLE
179.02946218	315.22171800	2.46400312	MAXIMUM

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MOID Plots

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