Asteroids

2025GX help

Last update: 2025-04-15 07:30 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.662

Aphelion (Q)

1.023

Eccentricity (e)

0.214

Inclination (i)

3.3

deg

Orbit period (P)

282.4

Earth MOID

0.01441

U parameter

7.0

Next Earth close approach

Date

2032-05-16

Nominal distance (from Earth center)

0.13962

20886338

Maximum Brightness

mag

Risk

Object is in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

26.7

mag

Diameter

12 - 27*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-04-07

Observatory

Mt. Lemmon Survey

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

0.842396

1-sigma variation

0.000080

Unit

Eccentricity (e)

Value

0.214317

1-sigma variation

0.000129

Unit

Inclination (i)

Value

3.3301

1-sigma variation

0.0025

Unit

Long. of Ascending Node (Ω)

Value

30.3741

1-sigma variation

0.0015

Unit

Arg. of Perihelion (ω)

Value

358.8420

1-sigma variation

0.0015

Unit

Mean Anomaly (M)

Value

197.77286

1-sigma variation

0.00540

Unit

Perihelion distance

Value

0.661856

1-sigma variation

Unit

Aphelion distance

Value

1.022935

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.332773

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.018070

1-sigma variation

Unit

MOID

Value

0.014412

1-sigma variation

Unit

Orbit Period

Value

282.4051

1-sigma variation

Unit

U parameter

Value

7.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.32196E-9	-1.02364E-8	-1.96685E-7	1.02229E-7	1.14383E-7	-4.02609E-7
e	-1.02364E-8	1.65767E-8	3.18170E-7	-1.64404E-7	-1.84638E-7	6.49314E-7
i	-1.96685E-7	3.18170E-7	6.17014E-6	-3.36753E-6	-3.63923E-6	1.29345E-5
Ω	1.02229E-7	-1.64404E-7	-3.36753E-6	2.34463E-6	2.15137E-6	-8.02759E-6
ω	1.14383E-7	-1.84638E-7	-3.63923E-6	2.15137E-6	2.26429E-6	-8.04307E-6
M	-4.02609E-7	6.49314E-7	1.29345E-5	-8.02759E-6	-8.04307E-6	2.91167E-5

Date of computation: 2025-04-11 12:27 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

26.741

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

12 - 27*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.517615

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-04-07.274266

Unit

Source

[2]

Last Observation

Value

2025-04-10.235549

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

47 (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 2025GX 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	1953-03-21 03:02	> 1 mo	0.1908861	0.0320693	19.5633706
VENUS	1955-12-18 01:38	> 1 mo	0.0035962	0.0034765	0.0712371
EARTH	1960-04-16 06:25	> 1 mo	0.0205633	0.0200316	0.0262628
EARTH	1967-05-18 18:46	464.7	0.0923070	0.0282788	0.0440710
EARTH	1977-03-19 15:18	> 1 d	0.1825942	0.0327112	0.3823571
VENUS	1983-03-25 13:43	> 1 w	0.0287876	0.0257734	0.0503408
EARTH	1984-04-08 13:29	> 1 mo	0.0211572	0.0210956	0.0032161
EARTH	1991-05-18 02:07	> 1 d	0.0973518	0.0281424	0.0249574
EARTH	2001-03-18 16:45	701.7	0.1397149	0.0329478	0.0599261
VENUS	2007-03-18 15:19	> 1 w	0.0397148	0.0260523	0.0170579
EARTH	2008-05-01 21:13	> 1 d	0.0135899	0.0135782	0.0002330
EARTH	2018-03-18 18:27	151.6	0.1962017	0.1791475	0.0056917
EARTH	2025-04-09 05:29	< 1 min	0.0204793	0.0204396	0.0000132
VENUS	2031-01-08 19:07	> 1 d	0.0236309	0.0095384	0.0047370
EARTH	2032-05-16 07:04	51.5	0.1396165	0.1369446	0.0008909
EARTH	2042-03-16 08:05	135.7	0.1246881	0.0799679	0.0151817
EARTH	2049-04-05 06:26	> 1 w	0.0218318	0.0217749	0.0007504
VENUS	2051-12-05 07:45	> 1 d	0.0033657	0.0030335	0.0162613
VENUS	2054-12-29 23:19	> 1 mo	0.0313969	0.0027031	2.8580396
EARTH	2059-04-17 08:47	> 1 mo	0.0120316	0.0120000	0.0073497
EARTH	2069-05-13 13:21	> 1 mo	0.0903354	0.0171922	3.3570000
EARTH	2082-03-28 09:34	> 1 mo	0.0319449	0.0208270	1.9764665
EARTH	2092-04-08 08:06	> 1 mo	0.0165952	0.0143121	0.4924993
EARTH	2102-03-21 02:12	> 1 mo	0.0985131	0.0296621	9.2556707
EARTH	2109-05-15 02:36	> 1 mo	0.1507336	0.0230559	9.7021118
EARTH	2119-05-10 10:45	> 1 mo	0.0351233	0.0129726	3.8865492

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
195.13348758	118.34766951	0.01441151	MINIMUM
353.24428309	279.99106699	0.33418878	SADDLE
353.56543076	100.39551857	1.66557389	SADDLE
175.98443409	282.87075513	2.01857475	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2025GX

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS	TS
2103-04-22.612	89275.612	-0.012	0.000	2.60 ± 1.825	8.12E7	1.57E-8	1.40E-9	-9.02	0
2117-04-22.244	94389.244	-0.008	0.000	0.81 ± 28.053	2.27E9	8.08E-11	7.20E-12	-11.38	0


Based on 44 optical observations (of which 0 are rejected as outliers) from 2025/04/07.274 to 2025/04/10.236.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 3.25 and 3.25 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20250410 144134.899 UTC.

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Download Impactor Table as: