Asteroids

2025EH1 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.933

Aphelion (Q)

1.911

Eccentricity (e)

0.344

Inclination (i)

3.6

deg

Orbit period (P)

619.3

Earth MOID

0.01081

U parameter

7.1

Next Earth close approach

Date

2047-06-10

Nominal distance (from Earth center)

0.06378

9541387

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.8

mag

Diameter

11 - 25*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-03-03

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

1.421963

1-sigma variation

0.000335

Unit

Eccentricity (e)

Value

0.344015

1-sigma variation

0.000173

Unit

Inclination (i)

Value

3.6295

1-sigma variation

0.0013

Unit

Long. of Ascending Node (Ω)

Value

1.3572

1-sigma variation

0.0012

Unit

Arg. of Perihelion (ω)

Value

209.8885

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

245.32394

1-sigma variation

0.08552

Unit

Perihelion distance

Value

0.932786

1-sigma variation

Unit

Aphelion distance

Value

1.911141

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.782575

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.030399

1-sigma variation

Unit

MOID

Value

0.010811

1-sigma variation

Unit

Orbit Period

Value

619.3427

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.11917E-7	5.77557E-8	4.45603E-7	3.90558E-7	1.23032E-7	-2.86097E-5
e	5.77557E-8	2.98052E-8	2.29958E-7	2.01542E-7	6.35133E-8	-1.47642E-5
i	4.45603E-7	2.29958E-7	1.77443E-6	1.55392E-6	4.91800E-7	-1.13911E-4
Ω	3.90558E-7	2.01542E-7	1.55392E-6	1.36832E-6	4.20702E-7	-9.98380E-5
ω	1.23032E-7	6.35133E-8	4.91800E-7	4.20702E-7	1.52697E-7	-3.14546E-5
M	-2.86097E-5	-1.47642E-5	-1.13911E-4	-9.98380E-5	-3.14546E-5	7.31355E-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

26.842

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 - 25*

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

402

Unit

Source

[1]

Normalized RMS of residuals

Value

0.840112

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-22.47239

Unit

Source

[2]

Last Observation

Value

2025-03-10.12693

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

39 (4)

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 2025EH1 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	1950-06-01 18:13	> 1 mo	0.0604582	0.0602486	0.1025127
EARTH	1962-03-10 08:15	> 1 mo	0.0167945	0.0118123	1.7253737
EARTH	1979-03-13 22:32	> 1 w	0.0125156	0.0115033	0.0253004
EARTH	1996-05-22 10:08	> 1 w	0.0708992	0.0644388	0.0118573
EARTH	2013-06-23 17:57	> 1 d	0.1552932	0.0915089	0.0230965
EARTH	2025-03-10 01:39	< 1 s	0.0182724	0.0182482	0.0000081
EARTH	2047-06-10 13:02	> 1 d	0.0637802	0.0623587	0.0079631
EARTH	2064-04-23 13:45	> 1 mo	0.0800309	0.0724827	0.0156237
EARTH	2081-03-11 14:51	> 1 w	0.0125206	0.0099857	0.0696570
EARTH	2086-06-22 15:17	> 1 mo	0.1251835	0.0628282	0.4873954
EARTH	2108-05-17 14:11	> 1 mo	0.0788261	0.0726620	0.3782516

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
331.71708245	69.37358677	0.01124043	MINIMUM
32.42762957	154.69391252	0.06248387	MINIMUM
6.95886517	118.90929844	0.08284280	SADDLE
181.60751693	291.50561155	0.91759010	SADDLE
2.80283870	292.93839079	1.92693236	SADDLE
181.23205966	111.25042262	2.91759646	MAXIMUM

Download:

MOID Plots

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