Asteroids

2025HS1 help

Last update: 2025-05-03 00:31 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Amor

Perihelion (q)

1.027

Aphelion (Q)

1.562

Eccentricity (e)

0.207

Inclination (i)

20.4

deg

Orbit period (P)

537.8

Earth MOID

0.03238

U parameter

7.8

Next Earth close approach

Date

2050-05-05

Nominal distance (from Earth center)

0.17479

26148727

Maximum Brightness

24.2

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

25.3

mag

Diameter

23 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-04-22

Observatory

ESA TBT La Silla Observatory

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

1.294284

1-sigma variation

0.000740

Unit

Eccentricity (e)

Value

0.206621

1-sigma variation

0.000431

Unit

Inclination (i)

Value

20.4353

1-sigma variation

0.0223

Unit

Long. of Ascending Node (Ω)

Value

214.8385

1-sigma variation

0.0012

Unit

Arg. of Perihelion (ω)

Value

21.4564

1-sigma variation

0.0097

Unit

Mean Anomaly (M)

Value

351.97732

1-sigma variation

0.01494

Unit

Perihelion distance

Value

1.026859

1-sigma variation

Unit

Aphelion distance

Value

1.561710

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.033160

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.540571

1-sigma variation

Unit

MOID

Value

0.032383

1-sigma variation

Unit

Orbit Period

Value

537.8275

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.47298E-7	3.19048E-7	1.64976E-5	-8.63135E-7	-7.14250E-6	1.10494E-5
e	3.19048E-7	1.85990E-7	9.61725E-6	-5.03163E-7	-4.16360E-6	6.44120E-6
i	1.64976E-5	9.61725E-6	4.97311E-4	-2.60190E-5	-2.15328E-4	3.33086E-4
Ω	-8.63135E-7	-5.03163E-7	-2.60190E-5	1.36131E-6	1.12664E-5	-1.74272E-5
ω	-7.14250E-6	-4.16360E-6	-2.15328E-4	1.12664E-5	9.33264E-5	-1.44271E-4
M	1.10494E-5	6.44120E-6	3.33086E-4	-1.74272E-5	-1.44271E-4	2.23122E-4

Date of computation: 2025-04-29 13:12 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

25.317

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

23 - 50*

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

0.502125

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-04-22.066053

Unit

Source

[2]

Last Observation

Value

2025-04-29.339979

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

47 (1)

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 2025HS1 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	1972-05-03 02:54	> 1 w	0.1436144	0.0223230	0.4849091
EARTH	2000-04-24 18:58	> 1 d	0.0395042	0.0318930	0.0770399
EARTH	2025-04-27 03:13	< 1 min	0.0371166	0.0369833	0.0000445
EARTH	2050-05-05 12:23	> 1 d	0.1747934	0.0178216	0.1294475
EARTH	2053-04-18 01:17	> 1 d	0.1769973	0.0221454	0.1398779
EARTH	2078-04-25 17:58	> 1 w	0.0371886	0.0325611	0.0809866
EARTH	2103-04-28 14:27	> 1 mo	0.0355230	0.0328363	0.2879055

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
343.43317398	112.79970440	0.03238302	MINIMUM
211.98437796	338.59939444	0.62368060	SADDLE
10.17151944	324.35441707	2.00796506	SADDLE
177.86722612	131.63684607	2.56795234	MAXIMUM

Download:

MOID Plots

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