Asteroids

2025JR help

Last update: 2025-05-06 01:01 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.977

Aphelion (Q)

3.255

Eccentricity (e)

0.538

Inclination (i)

9.8

deg

Orbit period (P)

1124.4

Earth MOID

0.01640

U parameter

8.2

Next Earth close approach

Date

2025-05-28

Nominal distance (from Earth center)

0.03095

4629894

Maximum Brightness

17.8

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

23.4

mag

Diameter

60 - 130*

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.116125

1-sigma variation

0.004442

Unit

Eccentricity (e)

Value

0.538285

1-sigma variation

0.000984

Unit

Inclination (i)

Value

9.7522

1-sigma variation

0.0112

Unit

Long. of Ascending Node (Ω)

Value

66.3974

1-sigma variation

0.0083

Unit

Arg. of Perihelion (ω)

Value

213.9176

1-sigma variation

0.0155

Unit

Mean Anomaly (M)

Value

344.11982

1-sigma variation

0.05298

Unit

Perihelion distance

Value

0.977046

1-sigma variation

Unit

Aphelion distance

Value

3.255204

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.729126

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.025870

1-sigma variation

Unit

MOID

Value

0.016404

1-sigma variation

Unit

Orbit Period

Value

1124.3732

1-sigma variation

Unit

U parameter

Value

8.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.97270E-5	4.36654E-6	4.95080E-5	1.66664E-5	-1.28799E-5	2.35281E-4
e	4.36654E-6	9.67873E-7	1.10130E-5	3.41613E-6	-2.29338E-6	5.20510E-5
i	4.95080E-5	1.10130E-5	1.26478E-4	3.07263E-5	-9.70039E-6	5.89339E-4
Ω	1.66664E-5	3.41613E-6	3.07263E-5	6.95738E-5	-1.23927E-4	2.04417E-4
ω	-1.28799E-5	-2.29338E-6	-9.70039E-6	-1.23927E-4	2.39197E-4	-1.65200E-4
M	2.35281E-4	5.20510E-5	5.89339E-4	2.04417E-4	-1.65200E-4	2.80675E-3

Date of computation: 2025-05-04 12:45 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

23.363

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

60 - 130*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.412917

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-04-25.365036

Unit

Source

[2]

Last Observation

Value

2025-05-04.360049

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

23 (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 2025JR 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	1985-06-13 18:46	> 1 mo	0.0658526	0.0056208	0.4719153
EARTH	2025-05-28 03:09	13.2	0.0309489	0.0307992	0.0000499
EARTH	2068-05-17 03:11	> 1 mo	0.1176041	0.0023173	0.7168738
EARTH	2071-07-27 14:09	> 1 mo	0.1507517	0.1334119	0.2348760
EARTH	2114-06-04 20:14	> 1 mo	0.0247483	0.0205771	0.1335547

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
343.39009769	147.69103371	0.01640398	MINIMUM
0.64189705	358.84146992	1.95842902	SADDLE
180.53527798	357.99687598	2.27791092	SADDLE
179.73451713	177.56320036	4.26803701	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out