Asteroids

2026GD1 help

Last update: 2026-05-17 13:15 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Amor

Perihelion (q)

1.030

Aphelion (Q)

2.730

Eccentricity (e)

0.452

Inclination (i)

1.6

deg

Orbit period (P)

941.5

Earth MOID

0.02361

U parameter

7.0

Next Earth close approach

Date

2044-06-21

Nominal distance (from Earth center)

0.10362

15500761

Maximum Brightness

21.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.2

mag

Diameter

40 - 80*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-04-09

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.880013

1-sigma variation

0.000641

Unit

Eccentricity (e)

Value

0.451979

1-sigma variation

0.000183

Unit

Inclination (i)

Value

1.5677

1-sigma variation

0.0005

Unit

Long. of Ascending Node (Ω)

Value

206.7303

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

31.0450

1-sigma variation

0.0012

Unit

Mean Anomaly (M)

Value

9.19095

1-sigma variation

0.00474

Unit

Perihelion distance

Value

1.030286

1-sigma variation

Unit

Aphelion distance

Value

2.729741

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.074485

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.446972

1-sigma variation

Unit

MOID

Value

0.023614

1-sigma variation

Unit

Orbit Period

Value

941.5423

1-sigma variation

Unit

U parameter

Value

7.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.11096E-7	1.17353E-7	3.11296E-7	-4.59134E-8	7.86787E-7	-3.03985E-6
e	1.17353E-7	3.35002E-8	8.88639E-8	-1.31066E-8	2.24600E-7	-8.67768E-7
i	3.11296E-7	8.88639E-8	2.35749E-7	-3.46480E-8	5.95659E-7	-2.30187E-6
Ω	-4.59134E-8	-1.31066E-8	-3.46480E-8	6.46864E-9	-8.92266E-8	3.39512E-7
ω	7.86787E-7	2.24600E-7	5.95659E-7	-8.92266E-8	1.50780E-6	-5.81810E-6
M	-3.03985E-6	-8.67768E-7	-2.30187E-6	3.39512E-7	-5.81810E-6	2.24782E-5

Date of computation: 2026-05-17 13:15 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

24.224

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

40 - 80*

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

0.458123

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-04-09.270448

Unit

Source

[2]

Last Observation

Value

2026-05-16.426711

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

191 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2026GD1 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1951-04-14 03:18	> 1 w	0.1441262	0.0069007	0.1344270
EARTH	1982-06-28 11:21	> 1 d	0.1670854	0.0723054	0.0319572
EARTH	1995-05-02 20:06	> 1 w	0.0381940	0.0144541	0.0528382
EARTH	2026-05-03 23:25	< 1 s	0.0374272	0.0373881	0.0000130
EARTH	2044-06-21 19:54	> 1 d	0.1036162	0.0213102	0.0481337
EARTH	2075-04-21 06:39	> 1 d	0.0936841	0.0261844	0.0228175
EARTH	2093-06-05 13:25	> 1 w	0.0384065	0.0145661	0.0170376
EARTH	2124-05-11 18:05	> 1 mo	0.0264493	0.0185115	0.0384000

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
359.43431884	131.74486009	0.02361406	MINIMUM
180.51270827	313.92898557	1.74129545	SADDLE
1.30097396	314.83236978	2.01873837	SADDLE
180.49295158	133.92270489	3.74127598	MAXIMUM

Download:

MOID Plots

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