Asteroids

2025GS help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.832

Aphelion (Q)

1.669

Eccentricity (e)

0.334

Inclination (i)

3.0

deg

Orbit period (P)

510.8

Earth MOID

0.00115

U parameter

6.4

Next Earth close approach

Date

2032-04-01

Nominal distance (from Earth center)

0.05119

7658141

Maximum Brightness

24.8

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

28.4

mag

Diameter

6 - 13*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-04-02

Observatory

MAPS, San Pedro de Atacama

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

1.250474

1-sigma variation

0.000095

Unit

Eccentricity (e)

Value

0.334499

1-sigma variation

0.000066

Unit

Inclination (i)

Value

2.9758

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

197.0021

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

69.8154

1-sigma variation

0.0015

Unit

Mean Anomaly (M)

Value

123.56388

1-sigma variation

0.01171

Unit

Perihelion distance

Value

0.832192

1-sigma variation

Unit

Aphelion distance

Value

1.668756

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.006763

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.256831

1-sigma variation

Unit

MOID

Value

0.001154

1-sigma variation

Unit

Orbit Period

Value

510.7524

1-sigma variation

Unit

U parameter

Value

6.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.99287E-9	6.22996E-9	1.00572E-8	1.61281E-8	-1.44295E-7	-1.11056E-6
e	6.22996E-9	4.31621E-9	6.98075E-9	1.11513E-8	-9.98848E-8	-7.69368E-7
i	1.00572E-8	6.98075E-9	1.19649E-8	1.69351E-8	-1.57826E-7	-1.24247E-6
Ω	1.61281E-8	1.11513E-8	1.69351E-8	3.07469E-8	-2.64489E-7	-1.99097E-6
ω	-1.44295E-7	-9.98848E-8	-1.57826E-7	-2.64489E-7	2.33518E-6	1.78165E-5
M	-1.11056E-6	-7.69368E-7	-1.24247E-6	-1.99097E-6	1.78165E-5	1.37147E-4

Date of computation: 2025-11-24 16:53 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

28.373

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

6 - 13*

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

247

Unit

Source

[1]

Normalized RMS of residuals

Value

0.628567

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-03-28.45196

Unit

Source

[2]

Last Observation

Value

2025-04-05.226741

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

48 (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 2025GS 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	1961-07-15 01:34	> 1 mo	0.1543827	0.0360028	0.2812463
EARTH	1964-04-04 06:18	> 1 w	0.0117362	0.0018041	0.0970324
EARTH	1977-08-11 05:52	252.5	0.1016736	0.0975846	0.0013664
EARTH	1980-04-02 07:14	> 1 d	0.0374195	0.0016343	0.0206471
EARTH	1993-06-13 15:28	> 1 w	0.1777730	0.1758166	0.0006659
EARTH	2006-08-29 08:21	922.3	0.0335367	0.0275950	0.0047138
EARTH	2009-04-15 05:03	> 1 d	0.0701518	0.0461210	0.0080129
EARTH	2022-08-22 12:02	360.0	0.0547317	0.0499736	0.0016118
EARTH	2025-04-05 21:27	< 1 min	0.0011420	0.0011414	0.0000002
EARTH	2032-04-01 22:16	467.6	0.0511915	0.0363130	0.0049600
EARTH	2039-03-26 22:48	219.8	0.1694590	0.1595752	0.0032946
EARTH	2057-09-08 15:27	221.3	0.0856432	0.0771464	0.0028555
EARTH	2064-09-02 20:40	486.2	0.0313003	0.0312770	0.0001680
EARTH	2071-08-26 23:46	> 1 d	0.0764147	0.0350953	0.0160775
EARTH	2078-08-01 06:59	> 1 w	0.1489280	0.0963572	0.0176840
EARTH	2085-07-05 07:23	> 1 w	0.1843907	0.1629845	0.0072064
EARTH	2092-06-09 03:07	> 1 w	0.1861518	0.1671199	0.0064815
EARTH	2099-05-15 10:28	> 1 w	0.1551008	0.0864387	0.0232137
EARTH	2106-04-18 20:58	> 1 w	0.0840953	0.0027406	0.0379010
EARTH	2113-04-09 07:14	> 1 d	0.0186357	0.0002984	0.0182630
EARTH	2120-04-19 22:42	> 1 mo	0.0906199	0.0034419	0.1389418

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
306.49289540	93.48124659	0.00115406	MINIMUM
55.47109254	239.73957577	0.03170816	MINIMUM
1.47076356	167.30712589	0.19088909	SADDLE
180.59428437	346.05031150	0.68753362	SADDLE
0.84896040	346.41693062	1.81570612	SADDLE
180.36252530	165.89292443	2.68562710	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2025GS

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2092-04-06.154	85243.154	5.009	0.000	0.85 ± 0.000	6.35E4	5.68E-11	1.50E-2	-12.01	0


Based on 48 optical observations (of which 1 are rejected as outliers) from 2025/03/28.452 to 2025/04/05.227.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.53 and 1.53 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20250805 130500.123 UTC.

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Download Impactor Table as: