Asteroids

2025OC5 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Amor

Perihelion (q)

1.047

Aphelion (Q)

1.400

Eccentricity (e)

0.144

Inclination (i)

5.5

deg

Orbit period (P)

494.3

Earth MOID

0.03186

U parameter

7.2

Next Earth close approach

Date

2048-08-10

Nominal distance (from Earth center)

0.07027

10511502

Maximum Brightness

24.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

7 - 15*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-07-28

Observatory

Pan-STARRS 2, 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.223532

1-sigma variation

0.000302

Unit

Eccentricity (e)

Value

0.144236

1-sigma variation

0.000179

Unit

Inclination (i)

Value

5.4711

1-sigma variation

0.0044

Unit

Long. of Ascending Node (Ω)

Value

129.8259

1-sigma variation

0.0021

Unit

Arg. of Perihelion (ω)

Value

181.0025

1-sigma variation

0.0833

Unit

Mean Anomaly (M)

Value

225.77310

1-sigma variation

0.06643

Unit

Perihelion distance

Value

1.047055

1-sigma variation

Unit

Aphelion distance

Value

1.400008

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.414907

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.031894

1-sigma variation

Unit

MOID

Value

0.031864

1-sigma variation

Unit

Orbit Period

Value

494.3348

1-sigma variation

Unit

U parameter

Value

7.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.09065E-8	5.38203E-8	1.16179E-6	4.65838E-7	-1.54560E-5	-1.40225E-5
e	5.38203E-8	3.19280E-8	7.05348E-7	2.64164E-7	-8.62566E-6	-8.68149E-6
i	1.16179E-6	7.05348E-7	1.96658E-5	2.76342E-6	-5.36696E-5	-2.83236E-4
Ω	4.65838E-7	2.64164E-7	2.76342E-6	4.50170E-6	-1.74543E-4	-2.91344E-6
ω	-1.54560E-5	-8.62566E-6	-5.36696E-5	-1.74543E-4	6.93122E-3	-7.27834E-4
M	-1.40225E-5	-8.68149E-6	-2.83236E-4	-2.91344E-6	-7.27834E-4	4.41339E-3

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

27.979

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

7 - 15*

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

263

Unit

Source

[1]

Normalized RMS of residuals

Value

0.574821

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-07-28.418576

Unit

Source

[2]

Last Observation

Value

2025-07-29.523105

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

14 (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

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 2025OC5 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	1956-07-12 04:01	> 1 d	0.1461356	0.0068210	0.0574689
EARTH	1960-08-20 08:48	> 1 d	0.1811113	0.0259865	0.0517825
EARTH	1983-08-06 20:17	> 1 d	0.0475553	0.0272376	0.0205868
EARTH	2002-07-12 14:02	> 1 d	0.1491806	0.0125359	0.0460735
EARTH	2025-07-31 18:50	36.6	0.0321371	0.0320274	0.0000366
EARTH	2048-08-10 01:00	> 1 d	0.0702651	0.0192855	0.0436008
EARTH	2067-07-30 06:55	> 1 w	0.0367492	0.0303513	0.0295635
EARTH	2090-08-01 12:09	> 1 mo	0.0319691	0.0318345	0.0531555
EARTH	2113-07-27 02:28	> 1 mo	0.0548427	0.0241934	13.6041496

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
358.48409357	208.17909403	0.03099915	MINIMUM
177.67131099	27.14667253	0.41436531	SADDLE
357.08160724	26.52740478	2.03255851	SADDLE
177.77586520	207.22585155	2.41600974	MAXIMUM

Download:

MOID Plots

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