Asteroids

2025GD help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.946

Aphelion (Q)

1.539

Eccentricity (e)

0.239

Inclination (i)

19.0

deg

Orbit period (P)

506.1

Earth MOID

0.00291

U parameter

6.2

Next Earth close approach

Date

2043-04-12

Nominal distance (from Earth center)

0.09676

14475246

Maximum Brightness

22.8

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

2025-04-01

Observatory

ATLAS-MLO, Mauna Loa

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

1.242893

1-sigma variation

0.000065

Unit

Eccentricity (e)

Value

0.238522

1-sigma variation

0.000043

Unit

Inclination (i)

Value

19.0469

1-sigma variation

0.0022

Unit

Long. of Ascending Node (Ω)

Value

15.3388

1-sigma variation

2.817E-5

Unit

Arg. of Perihelion (ω)

Value

225.7870

1-sigma variation

0.0018

Unit

Mean Anomaly (M)

Value

134.74827

1-sigma variation

0.00895

Unit

Perihelion distance

Value

0.946435

1-sigma variation

Unit

Aphelion distance

Value

1.539351

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.406686

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.003259

1-sigma variation

Unit

MOID

Value

0.002911

1-sigma variation

Unit

Orbit Period

Value

506.1148

1-sigma variation

Unit

U parameter

Value

6.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.26678E-9	2.80848E-9	1.42270E-7	-1.83955E-9	-1.15927E-7	-5.84524E-7
e	2.80848E-9	1.84860E-9	9.36459E-8	-1.21084E-9	-7.63012E-8	-3.84747E-7
i	1.42270E-7	9.36459E-8	4.74436E-6	-6.13473E-8	-3.86484E-6	-1.94905E-5
Ω	-1.83955E-9	-1.21084E-9	-6.13473E-8	7.93372E-10	4.99717E-8	2.52012E-7
ω	-1.15927E-7	-7.63012E-8	-3.86484E-6	4.99717E-8	3.15144E-6	1.58803E-5
M	-5.84524E-7	-3.84747E-7	-1.94905E-5	2.52012E-7	1.58803E-5	8.00769E-5

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

24.758

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

[-]

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

169

Unit

Source

[1]

Normalized RMS of residuals

Value

0.51261

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-04-01.354934

Unit

Source

[2]

Last Observation

Value

2025-04-05.936042

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

268 (7)

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 2025GD 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	1952-04-05 00:54	94.9	0.0037450	0.0032950	0.0004895
EARTH	1963-04-11 01:58	577.4	0.0763605	0.0592830	0.0056926
EARTH	1974-04-21 11:14	728.3	0.1971045	0.1774810	0.0065502
EARTH	2014-04-01 05:33	430.9	0.0773701	0.0609346	0.0054788
EARTH	2025-04-05 20:39	< 1 s	0.0063481	0.0063458	0.0000008
EARTH	2043-04-12 18:25	885.8	0.0967610	0.0710056	0.0085850
EARTH	2068-03-26 04:10	596.8	0.1816557	0.1540095	0.0092166
MARS	2071-07-14 07:07	162.6	0.0151606	0.0136366	0.0029481
EARTH	2086-04-02 00:33	1393.7	0.0651221	0.0143594	0.0169882
MARS	2097-11-12 19:42	115.4	0.0493673	0.0400788	0.0031658
EARTH	2104-04-02 23:42	189.6	0.0577333	0.0502253	0.0025027
EARTH	2122-03-28 06:00	1102.9	0.1734418	0.1221257	0.0171098

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
323.61055169	92.47387319	0.00402239	MINIMUM
81.70220106	236.74542669	0.29554034	MINIMUM
38.46104110	187.22249528	0.33473609	SADDLE
199.88610951	333.47261974	0.64332469	SADDLE
8.37406636	327.53854658	1.91739023	SADDLE
176.65145540	135.12700815	2.53509991	MAXIMUM

Download:

MOID Plots

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