Asteroids

2025HX2 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.084

Aphelion (Q)

1.715

Eccentricity (e)

0.226

Inclination (i)

27.0

deg

Orbit period (P)

604.8

Earth MOID

0.10687

U parameter

8.7

Next Earth close approach

Date

2030-05-06

Nominal distance (from Earth center)

0.17299

25879185

Maximum Brightness

22.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.1

mag

Diameter

40 - 90*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-04-23

Observatory

Kitt Peak-Bok

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

1.399599

1-sigma variation

0.003489

Unit

Eccentricity (e)

Value

0.225693

1-sigma variation

0.001675

Unit

Inclination (i)

Value

27.0021

1-sigma variation

0.0905

Unit

Long. of Ascending Node (Ω)

Value

45.3302

1-sigma variation

0.0106

Unit

Arg. of Perihelion (ω)

Value

214.9756

1-sigma variation

0.0975

Unit

Mean Anomaly (M)

Value

94.46473

1-sigma variation

0.28791

Unit

Perihelion distance

Value

1.083719

1-sigma variation

Unit

Aphelion distance

Value

1.715479

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.638697

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.110682

1-sigma variation

Unit

MOID

Value

0.106871

1-sigma variation

Unit

Orbit Period

Value

604.7889

1-sigma variation

Unit

U parameter

Value

8.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.21754E-5	5.84311E-6	3.15647E-4	-3.71156E-5	-3.40063E-4	-1.00459E-3
e	5.84311E-6	2.80445E-6	1.51469E-4	-1.78146E-5	-1.63134E-4	-4.82139E-4
i	3.15647E-4	1.51469E-4	8.18392E-3	-9.62111E-4	-8.81944E-3	-2.60427E-2
Ω	-3.71156E-5	-1.78146E-5	-9.62111E-4	1.13169E-4	1.03605E-3	3.06263E-3
ω	-3.40063E-4	-1.63134E-4	-8.81944E-3	1.03605E-3	9.51486E-3	2.80521E-2
M	-1.00459E-3	-4.82139E-4	-2.60427E-2	3.06263E-3	2.80521E-2	8.28907E-2

Date of computation: 2025-09-10 00:30 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

24.144

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

40 - 90*

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

149

Unit

Source

[1]

Normalized RMS of residuals

Value

0.498674

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-04-23.406251

Unit

Source

[2]

Last Observation

Value

2025-04-30.311629

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

28 (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 2025HX2 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	1977-05-09 15:00	> 1 w	0.1155546	0.1081375	0.3515515
EARTH	1982-05-05 14:35	> 1 w	0.1945781	0.1069297	0.7699764
EARTH	2025-05-10 04:13	1.5	0.1265534	0.1252223	0.0004437
EARTH	2030-05-06 09:13	> 1 d	0.1729917	0.1081271	0.0893209
EARTH	2073-05-10 21:56	> 1 w	0.1502744	0.1085251	0.6923006
EARTH	2078-05-07 10:20	> 1 w	0.1442879	0.1083096	0.7192134
EARTH	2121-05-12 14:59	> 1 w	0.1800760	0.1090186	1.2813346

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
334.51000052	125.26502701	0.10849011	MINIMUM
90.48658063	265.53815243	0.53944474	MINIMUM
61.70475769	234.71851589	0.55025684	SADDLE
212.12371338	0.93977521	0.85757552	SADDLE
13.61704393	351.78190771	2.04179600	SADDLE
172.73707502	149.85471984	2.71099738	MAXIMUM

Download:

MOID Plots

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