Asteroids

2026DG1 help

Last update: 2026-02-23 13:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.836

Aphelion (Q)

2.743

Eccentricity (e)

0.533

Inclination (i)

0.6

deg

Orbit period (P)

874.2

Earth MOID

0.00115

U parameter

8.2

Next Earth close approach

Date

2026-02-28

Nominal distance (from Earth center)

0.01838

2749892

Maximum Brightness

21.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.1

mag

Diameter

16 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-19

Observatory

Pan-STARRS 1, Haleakala

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

1.789273

1-sigma variation

0.002723

Unit

Eccentricity (e)

Value

0.532984

1-sigma variation

0.000816

Unit

Inclination (i)

Value

0.6108

1-sigma variation

0.0010

Unit

Long. of Ascending Node (Ω)

Value

89.7931

1-sigma variation

0.0314

Unit

Arg. of Perihelion (ω)

Value

124.7897

1-sigma variation

0.0266

Unit

Mean Anomaly (M)

Value

302.85054

1-sigma variation

0.13579

Unit

Perihelion distance

Value

0.835620

1-sigma variation

Unit

Aphelion distance

Value

2.742927

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.862832

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.037192

1-sigma variation

Unit

MOID

Value

0.001152

1-sigma variation

Unit

Orbit Period

Value

874.2052

1-sigma variation

Unit

U parameter

Value

8.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.41391E-6	2.22056E-6	2.65252E-6	6.52500E-5	-5.07249E-5	3.69734E-4
e	2.22056E-6	6.65100E-7	7.95069E-7	1.96169E-5	-1.52610E-5	1.10739E-4
i	2.65252E-6	7.95069E-7	9.76049E-7	2.66813E-5	-2.12545E-5	1.32223E-4
Ω	6.52500E-5	1.96169E-5	2.66813E-5	9.87362E-4	-8.31457E-4	3.24677E-3
ω	-5.07249E-5	-1.52610E-5	-2.12545E-5	-8.31457E-4	7.06070E-4	-2.52293E-3
M	3.69734E-4	1.10739E-4	1.32223E-4	3.24677E-3	-2.52293E-3	1.84389E-2

Date of computation: 2026-02-23 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

26.124

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

16 - 40*

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

0.7

Unit

Source

[1]

Normalized RMS of residuals

Value

0.687369

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-19.418649

Unit

Source

[2]

Last Observation

Value

2026-02-23.13046

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

21 (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 2026DG1 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	1952-04-23 17:16	> 1 mo	0.1732317	0.0831834	1.3856821
MARS	1959-02-16 17:56	> 1 mo	0.0495669	0.0369497	10.9100498
EARTH	1971-06-05 13:52	> 1 mo	0.1175254	0.0031672	11.3642707
MARS	1971-08-04 23:14	> 1 mo	0.0474156	0.0341441	10.6957133
EARTH	1983-02-13 00:43	> 1 mo	0.1863185	0.0100500	7.4929305
EARTH	1990-06-28 02:09	> 1 mo	0.0115128	0.0011031	0.3131930
EARTH	2002-05-25 09:00	> 1 mo	0.1426120	0.0063554	0.1277449
EARTH	2014-04-09 11:51	> 1 mo	0.1576955	0.0230497	0.0468474
EARTH	2026-02-28 15:36	< 1 min	0.0183819	0.0183031	0.0000263
EARTH	2038-02-27 21:06	> 1 w	0.0137802	0.0097637	0.1152307
EARTH	2050-04-12 12:38	> 1 mo	0.1638444	0.0119520	0.1111270
EARTH	2062-05-27 05:27	> 1 mo	0.1438420	0.0027074	0.3173816
EARTH	2074-06-25 10:15	> 1 mo	0.0263988	0.0016568	0.6485141
EARTH	2086-06-19 13:41	> 1 mo	0.0689472	0.0025253	3.4565816
EARTH	2098-05-26 04:11	> 1 mo	0.1502842	0.0082659	2.0653760
EARTH	2110-04-26 03:40	> 1 mo	0.1769911	0.0825863	0.2103656
EARTH	2122-03-30 13:01	> 1 mo	0.1437824	0.0119575	1.7864134

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
36.03003472	174.19123808	0.00115246	MINIMUM
326.81319995	55.72553043	0.00981415	MINIMUM
1.68786443	115.25884529	0.17240691	SADDLE
180.51842086	293.89665601	1.74918224	SADDLE
1.68845924	295.27592177	1.82921621	SADDLE
180.52984476	113.90756935	3.75055762	MAXIMUM

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MOID Plots

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