Asteroids

2025OY12 help

Last update: 2025-08-16 13:22 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.689

Aphelion (Q)

1.592

Eccentricity (e)

0.396

Inclination (i)

6.4

deg

Orbit period (P)

444.9

Earth MOID

0.00993

U parameter

9.0

Next Earth close approach

Date

2038-02-15

Nominal distance (from Earth center)

0.01738

2599428

Maximum Brightness

18.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

26 - 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.140529

1-sigma variation

0.003293

Unit

Eccentricity (e)

Value

0.396050

1-sigma variation

0.003273

Unit

Inclination (i)

Value

6.3997

1-sigma variation

0.0520

Unit

Long. of Ascending Node (Ω)

Value

321.7587

1-sigma variation

0.0052

Unit

Arg. of Perihelion (ω)

Value

92.3994

1-sigma variation

0.0387

Unit

Mean Anomaly (M)

Value

32.11225

1-sigma variation

0.03705

Unit

Perihelion distance

Value

0.688823

1-sigma variation

Unit

Aphelion distance

Value

1.592235

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.036148

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.041521

1-sigma variation

Unit

MOID

Value

0.009931

1-sigma variation

Unit

Orbit Period

Value

444.8954

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.08449E-5	1.07778E-5	1.71313E-4	1.15933E-5	-1.25842E-4	1.21861E-4
e	1.07778E-5	1.07122E-5	1.70295E-4	1.13951E-5	-1.24865E-4	1.21167E-4
i	1.71313E-4	1.70295E-4	2.70780E-3	1.78246E-4	-1.98026E-3	1.92734E-3
Ω	1.15933E-5	1.13951E-5	1.78246E-4	2.69971E-5	-1.57243E-4	1.23265E-4
ω	-1.25842E-4	-1.24865E-4	-1.98026E-3	-1.57243E-4	1.49561E-3	-1.40314E-3
M	1.21861E-4	1.21167E-4	1.92734E-3	1.23265E-4	-1.40314E-3	1.37268E-3

Date of computation: 2025-08-16 13:22 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

25.026

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

26 - 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

0.172366

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-07-28.489028

Unit

Source

[2]

Last Observation

Value

2025-08-01.510634

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

10 (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 2025OY12 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	1955-02-08 17:31	> 1 mo	0.1192215	0.0126990	10.2513626
EARTH	1966-02-13 16:05	> 1 mo	0.0442477	0.0098230	6.3951677
EARTH	1977-02-15 18:26	> 1 w	0.0107593	0.0102749	0.0696468
EARTH	1988-02-09 21:57	> 1 w	0.1104733	0.0125172	0.3940970
EARTH	2003-08-24 00:18	> 1 mo	0.1668556	0.0210881	0.3531031
EARTH	2014-08-13 17:44	> 1 w	0.0657946	0.0104106	0.2855335
EARTH	2025-08-09 13:40	2.6	0.0105832	0.0103122	0.0000903
EARTH	2038-02-15 22:06	> 1 w	0.0173761	0.0116039	0.2302650
EARTH	2053-08-06 20:36	> 1 w	0.0532176	0.0097076	0.3770678
EARTH	2055-02-23 20:25	> 1 w	0.1376815	0.0126785	0.2950531
EARTH	2070-08-10 09:11	> 1 w	0.0124104	0.0091850	0.2964081
EARTH	2083-02-15 16:29	> 1 mo	0.0243436	0.0120923	2.1711775
VENUS	2092-09-30 16:37	> 1 mo	0.0498995	0.0493062	0.3158282
EARTH	2098-08-07 02:48	> 1 mo	0.0535286	0.0088356	5.6841664
EARTH	2100-02-24 02:41	> 1 mo	0.1395223	0.0135042	5.8234595
EARTH	2115-08-11 14:48	> 1 mo	0.0113727	0.0086188	1.5685868

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
286.51341137	216.22797806	0.00993079	MINIMUM
69.92507069	45.60479208	0.01175548	MINIMUM
357.50773054	310.15433428	0.31431363	SADDLE
178.84993785	131.63679481	0.59688833	SADDLE
357.42346198	130.05180132	1.69849847	SADDLE
178.94778774	311.71289139	2.57755699	MAXIMUM

Download:

MOID Plots

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