Asteroids

2025OR5 help

Last update: 2025-07-30 13:15 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

1.003

Aphelion (Q)

1.069

Eccentricity (e)

0.032

Inclination (i)

4.5

deg

Orbit period (P)

385.3

Earth MOID

0.01222

U parameter

5.5

Next Earth close approach

Date

2044-03-16

Nominal distance (from Earth center)

0.10686

15986145

Maximum Brightness

26.3

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

28.5

mag

Diameter

5 - 12*

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.036243

1-sigma variation

0.000015

Unit

Eccentricity (e)

Value

0.031670

1-sigma variation

0.000013

Unit

Inclination (i)

Value

4.5481

1-sigma variation

0.0019

Unit

Long. of Ascending Node (Ω)

Value

128.4664

1-sigma variation

0.0010

Unit

Arg. of Perihelion (ω)

Value

102.5542

1-sigma variation

0.0135

Unit

Mean Anomaly (M)

Value

351.96723

1-sigma variation

0.01183

Unit

Perihelion distance

Value

1.003425

1-sigma variation

Unit

Aphelion distance

Value

1.069061

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.057144

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.013520

1-sigma variation

Unit

MOID

Value

0.012223

1-sigma variation

Unit

Orbit Period

Value

385.2925

1-sigma variation

Unit

U parameter

Value

5.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.29287E-10	1.89072E-10	2.81268E-8	-1.47694E-8	2.02762E-7	-1.78539E-7
e	1.89072E-10	1.64348E-10	2.26725E-8	-1.18957E-8	1.63599E-7	-1.44892E-7
i	2.81268E-8	2.26725E-8	3.49551E-6	-1.83624E-6	2.50532E-5	-2.19973E-5
Ω	-1.47694E-8	-1.18957E-8	-1.83624E-6	9.64646E-7	-1.31596E-5	1.15533E-5
ω	2.02762E-7	1.63599E-7	2.50532E-5	-1.31596E-5	1.80985E-4	-1.59044E-4
M	-1.78539E-7	-1.44892E-7	-2.19973E-5	1.15533E-5	-1.59044E-4	1.39855E-4

Date of computation: 2025-07-30 13:15 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

28.503

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

5 - 12*

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

0.555124

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-07-27.277443

Unit

Source

[2]

Last Observation

Value

2025-07-30.260318

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

35 (3)

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 2025OR5 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	1965-02-22 11:31	> 1 w	0.0559562	0.0557287	0.0024751
EARTH	1965-07-29 15:41	478.9	0.0198386	0.0094747	0.0216639
EARTH	1985-03-20 07:40	45.9	0.1823114	0.1611649	0.0071281
EARTH	1985-12-31 17:43	> 1 w	0.0879788	0.0789546	0.0036418
EARTH	1986-07-31 08:48	231.8	0.1000382	0.0730411	0.0090155
EARTH	2006-01-07 20:48	> 1 d	0.0821332	0.0791023	0.0010593
EARTH	2006-07-30 02:17	59.7	0.0876578	0.0798718	0.0025974
EARTH	2025-02-11 05:30	12.9	0.0513208	0.0512576	0.0000211
EARTH	2025-07-27 16:33	< 1 min	0.0116426	0.0116300	0.0000042
EARTH	2044-03-16 19:30	337.3	0.1069170	0.1011723	0.0019558
EARTH	2044-08-07 07:02	416.9	0.1037313	0.0966764	0.0023561
EARTH	2064-03-18 18:09	570.0	0.1210280	0.1049349	0.0055849
EARTH	2064-11-15 03:24	> 1 w	0.1064077	0.1055828	0.0004280
EARTH	2065-07-30 18:36	120.8	0.1864108	0.1684351	0.0059929
EARTH	2085-02-06 21:27	> 1 d	0.0500175	0.0497556	0.0013251
EARTH	2085-07-26 08:52	116.1	0.0158769	0.0097817	0.0116822
EARTH	2102-02-08 05:59	> 1 mo	0.0649678	0.0641469	0.0298551
EARTH	2102-07-28 08:14	> 1 d	0.0515036	0.0094939	0.2329176
EARTH	2118-01-21 08:47	> 1 mo	0.0810157	0.0760348	0.3869072
EARTH	2118-07-29 21:26	> 1 w	0.1136473	0.0089423	1.4088468

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
72.01793597	202.90838076	0.01222350	MINIMUM
277.52057813	43.82588130	0.05047920	MINIMUM
348.58870576	116.17109449	0.07982271	SADDLE
177.12584785	306.73308286	0.11260064	SADDLE
14.99479704	323.79264004	1.99002978	SADDLE
198.06352541	146.86468721	2.07979260	MAXIMUM

Download:

MOID Plots

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