Asteroids

2025HB5 help

Last update: 2025-09-10 09:18 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.081

Aphelion (Q)

1.899

Eccentricity (e)

0.275

Inclination (i)

15.3

deg

Orbit period (P)

664.2

Earth MOID

0.08376

U parameter

8.1

Next Earth close approach

Date

2045-04-28

Nominal distance (from Earth center)

0.08586

12843992

Maximum Brightness

20.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.8

mag

Diameter

30 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-04-25

Observatory

Pan-STARRS 1, 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.489825

1-sigma variation

0.001693

Unit

Eccentricity (e)

Value

0.274693

1-sigma variation

0.000720

Unit

Inclination (i)

Value

15.2580

1-sigma variation

0.0265

Unit

Long. of Ascending Node (Ω)

Value

41.9201

1-sigma variation

0.0026

Unit

Arg. of Perihelion (ω)

Value

159.7022

1-sigma variation

0.0173

Unit

Mean Anomaly (M)

Value

121.82520

1-sigma variation

0.21648

Unit

Perihelion distance

Value

1.080581

1-sigma variation

Unit

Aphelion distance

Value

1.899069

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.863649

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.085784

1-sigma variation

Unit

MOID

Value

0.083760

1-sigma variation

Unit

Orbit Period

Value

664.2039

1-sigma variation

Unit

U parameter

Value

8.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.86721E-6	1.21875E-6	4.47912E-5	4.43220E-6	2.46719E-5	-3.66476E-4
e	1.21875E-6	5.18182E-7	1.90193E-5	1.88485E-6	1.03810E-5	-1.55721E-4
i	4.47912E-5	1.90193E-5	7.02779E-4	6.91040E-5	4.01509E-4	-5.73339E-3
Ω	4.43220E-6	1.88485E-6	6.91040E-5	6.85922E-6	3.74201E-5	-5.66134E-4
ω	2.46719E-5	1.03810E-5	4.01509E-4	3.74201E-5	2.98871E-4	-3.19849E-3
M	-3.66476E-4	-1.55721E-4	-5.73339E-3	-5.66134E-4	-3.19849E-3	4.68649E-2

Date of computation: 2025-09-10 09:18 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

24.769

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

30 - 70*

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

146

Unit

Source

[1]

Normalized RMS of residuals

Value

0.504888

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-04-25.483981

Unit

Source

[2]

Last Observation

Value

2025-04-28.376849

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

29 (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 2025HB5 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	1954-05-05 05:58	> 1 w	0.1864591	0.0738157	0.4132280
EARTH	2005-04-26 00:02	> 1 w	0.1229537	0.0806709	0.1551138
EARTH	2025-04-28 00:48	4.2	0.0906591	0.0901424	0.0001723
EARTH	2045-04-28 19:01	> 1 w	0.0858568	0.0852375	0.0242653
EARTH	2065-04-29 07:10	> 1 w	0.0848858	0.0848543	0.0121317
EARTH	2085-04-29 22:40	> 1 mo	0.0871253	0.0847947	0.5086151
EARTH	2105-05-02 16:02	> 1 mo	0.1057563	0.0825981	4.0255157
EARTH	2125-05-06 19:51	> 1 mo	0.1894468	0.0715924	10.7713735

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
12.81405202	116.55307505	0.08375997	MINIMUM
176.15000774	278.66724319	0.91123769	SADDLE
0.98964888	281.35418406	2.07590999	SADDLE
183.14534990	103.79654911	2.90106245	MAXIMUM

Download:

MOID Plots

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