Asteroids

2025JO help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.797

Aphelion (Q)

3.336

Eccentricity (e)

0.614

Inclination (i)

1.5

deg

Orbit period (P)

1085.1

Earth MOID

0.00748

U parameter

8.1

Next Earth close approach

Date

2028-04-29

Nominal distance (from Earth center)

0.17703

26482773

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.9

mag

Diameter

11 - 24*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-05-02

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

2.066549

1-sigma variation

0.003953

Unit

Eccentricity (e)

Value

0.614309

1-sigma variation

0.000823

Unit

Inclination (i)

Value

1.5460

1-sigma variation

0.0020

Unit

Long. of Ascending Node (Ω)

Value

34.4815

1-sigma variation

0.0022

Unit

Arg. of Perihelion (ω)

Value

259.2937

1-sigma variation

0.0023

Unit

Mean Anomaly (M)

Value

116.72288

1-sigma variation

0.32874

Unit

Perihelion distance

Value

0.797050

1-sigma variation

Unit

Aphelion distance

Value

3.336048

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.455970

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.150684

1-sigma variation

Unit

MOID

Value

0.007476

1-sigma variation

Unit

Orbit Period

Value

1085.0930

1-sigma variation

Unit

U parameter

Value

8.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.56226E-5	3.25161E-6	7.79059E-6	8.01253E-6	-6.66271E-6	-1.29936E-3
e	3.25161E-6	6.76781E-7	1.62095E-6	1.66524E-6	-1.38203E-6	-2.70442E-4
i	7.79059E-6	1.62095E-6	3.91607E-6	4.13823E-6	-3.58976E-6	-6.47950E-4
Ω	8.01253E-6	1.66524E-6	4.13823E-6	4.76628E-6	-4.64165E-6	-6.66383E-4
ω	-6.66271E-6	-1.38203E-6	-3.58976E-6	-4.64165E-6	5.16441E-6	5.54084E-4
M	-1.29936E-3	-2.70442E-4	-6.47950E-4	-6.66383E-4	5.54084E-4	1.08070E-1

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

26.932

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

11 - 24*

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

378

Unit

Source

[1]

Normalized RMS of residuals

Value

0.425996

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-05-02.433571

Unit

Source

[2]

Last Observation

Value

2025-05-07.32958

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

15 (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 2025JO 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	2001-10-03 02:40	> 1 d	0.1882010	0.0168713	0.0877362
EARTH	2004-09-21 19:04	> 1 w	0.0307296	0.0173080	0.1959425
EARTH	2007-09-07 09:52	> 1 mo	0.1093534	0.0166276	0.2072223
EARTH	2010-08-14 17:55	> 1 mo	0.1903801	0.0160962	0.0969092
EARTH	2019-06-09 05:51	> 1 w	0.1680990	0.0013202	0.0559984
EARTH	2022-05-22 00:30	> 1 w	0.0929206	0.0065587	0.0459280
EARTH	2025-05-10 07:29	< 1 min	0.0095697	0.0095361	0.0000112
EARTH	2028-04-29 01:40	> 1 d	0.1770264	0.0184939	0.0532188
MARS	2031-02-09 03:54	> 1 d	0.0337918	0.0154073	0.0685368

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
326.11995775	127.77697967	0.00729174	MINIMUM
33.36826664	256.45858159	0.01660576	MINIMUM
359.70563334	192.09507724	0.22275277	SADDLE
359.67798054	12.02824134	1.78007381	SADDLE
179.92396633	12.33252167	2.35195598	SADDLE
179.91480794	192.32593249	4.35288724	MAXIMUM

Download:

MOID Plots

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