Asteroids

2026DX help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.556

Aphelion (Q)

1.019

Eccentricity (e)

0.294

Inclination (i)

6.7

deg

Orbit period (P)

255.4

Earth MOID

0.03101

U parameter

7.3

Next Earth close approach

Date

2033-03-04

Nominal distance (from Earth center)

0.04492

6720608

Maximum Brightness

22.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.8

mag

Diameter

12 - 27*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-19

Observatory

Pan-STARRS 2, 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

0.787768

1-sigma variation

0.000106

Unit

Eccentricity (e)

Value

0.293977

1-sigma variation

0.000204

Unit

Inclination (i)

Value

6.7140

1-sigma variation

0.0061

Unit

Long. of Ascending Node (Ω)

Value

144.9104

1-sigma variation

0.0015

Unit

Arg. of Perihelion (ω)

Value

181.5546

1-sigma variation

0.0025

Unit

Mean Anomaly (M)

Value

60.54419

1-sigma variation

0.02005

Unit

Perihelion distance

Value

0.556183

1-sigma variation

Unit

Aphelion distance

Value

1.019353

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.031020

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.457017

1-sigma variation

Unit

MOID

Value

0.031015

1-sigma variation

Unit

Orbit Period

Value

255.3853

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.11307E-8	-2.15215E-8	-6.45209E-7	-1.63249E-7	2.63875E-7	2.11541E-6
e	-2.15215E-8	4.16123E-8	1.24753E-6	3.15645E-7	-5.10214E-7	-4.09019E-6
i	-6.45209E-7	1.24753E-6	3.74049E-5	9.46552E-6	-1.52882E-5	-1.22640E-4
Ω	-1.63249E-7	3.15645E-7	9.46552E-6	2.39590E-6	-3.86588E-6	-3.10357E-5
ω	2.63875E-7	-5.10214E-7	-1.52882E-5	-3.86588E-6	6.28278E-6	5.00954E-5
M	2.11541E-6	-4.09019E-6	-1.22640E-4	-3.10357E-5	5.00954E-5	4.02149E-4

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

26.753

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

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

[-]

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

0.6

Unit

Source

[1]

Normalized RMS of residuals

Value

0.815546

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-16.620317

Unit

Source

[2]

Last Observation

Value

2026-02-23.21492

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

23 (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 2026DX 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	1952-03-11 10:18	> 1 d	0.1826171	0.0498932	0.1217328
EARTH	1954-01-19 22:55	> 1 d	0.1948536	0.0530842	0.1186647
EARTH	1961-01-20 01:33	> 1 d	0.0951007	0.0456027	0.0882988
EARTH	1968-01-29 02:18	> 1 w	0.0396106	0.0355930	0.0204952
EARTH	1975-02-10 19:05	> 1 w	0.0315703	0.0315387	0.0009958
EARTH	1982-02-25 20:04	> 1 w	0.0319250	0.0315212	0.0034258
EARTH	1989-03-08 15:08	> 1 d	0.0637669	0.0395685	0.0275099
EARTH	1996-03-11 13:20	91.3	0.1617476	0.0791824	0.0292966
EARTH	2005-01-19 13:50	867.2	0.1076586	0.0490202	0.0240590
EARTH	2012-01-27 10:39	> 1 d	0.0419042	0.0355188	0.0073354
EARTH	2019-02-09 07:14	> 1 d	0.0314200	0.0314141	0.0000813
EARTH	2026-02-22 01:33	< 1 min	0.0320573	0.0319854	0.0000240
EARTH	2033-03-04 21:22	> 1 d	0.0449245	0.0373132	0.0035787
EARTH	2040-03-11 02:01	485.6	0.1089468	0.0678275	0.0148274
EARTH	2049-01-19 02:39	378.9	0.1732198	0.0880103	0.0298467
EARTH	2056-01-20 20:38	> 1 d	0.0869452	0.0431592	0.0258650
EARTH	2063-01-28 12:48	> 1 d	0.0372614	0.0338704	0.0061823
EARTH	2070-02-05 08:52	> 1 d	0.0312520	0.0312423	0.0003157
EARTH	2077-02-14 05:18	> 1 w	0.0319044	0.0318643	0.0008752
EARTH	2084-02-21 20:45	> 1 w	0.0332297	0.0331018	0.0024398
EARTH	2091-03-02 02:15	> 1 w	0.0391841	0.0358370	0.0212065
EARTH	2098-03-09 08:54	> 1 w	0.0722599	0.0433463	0.0823917
EARTH	2105-03-12 16:10	676.4	0.1448042	0.0507725	0.1031414
EARTH	2114-01-19 21:56	133.8	0.1490093	0.0468241	0.0923694
EARTH	2121-01-21 17:15	> 1 d	0.0710464	0.0395849	0.0717274

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
177.48926850	42.65160333	0.03101491	MINIMUM
355.79164967	220.66481749	0.45727717	SADDLE
356.15738909	41.13687308	1.54433409	SADDLE
177.83419729	222.88502994	2.03258844	MAXIMUM

Download:

MOID Plots

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