Asteroids

2026DO11 help

Last update: 2026-02-27 23:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.011

Aphelion (Q)

1.979

Eccentricity (e)

0.324

Inclination (i)

20.5

deg

Orbit period (P)

667.9

Earth MOID

0.02045

U parameter

8.0

Next Earth close approach

Date

2037-02-22

Nominal distance (from Earth center)

0.08538

12772432

Maximum Brightness

23.3

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

2026-02-26

Observatory

Kitt Peak-Bok

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

1.495278

1-sigma variation

0.001433

Unit

Eccentricity (e)

Value

0.323650

1-sigma variation

0.000631

Unit

Inclination (i)

Value

20.4984

1-sigma variation

0.0229

Unit

Long. of Ascending Node (Ω)

Value

338.8297

1-sigma variation

0.0009

Unit

Arg. of Perihelion (ω)

Value

183.7983

1-sigma variation

0.0030

Unit

Mean Anomaly (M)

Value

304.54500

1-sigma variation

0.07902

Unit

Perihelion distance

Value

1.011331

1-sigma variation

Unit

Aphelion distance

Value

1.979226

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.967217

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.020527

1-sigma variation

Unit

MOID

Value

0.020451

1-sigma variation

Unit

Orbit Period

Value

667.8539

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.05468E-6	9.04520E-7	3.27793E-5	-1.26828E-6	3.29547E-6	1.13256E-4
e	9.04520E-7	3.98192E-7	1.44297E-5	-5.58307E-7	1.45269E-6	4.98569E-5
i	3.27793E-5	1.44297E-5	5.23237E-4	-2.02436E-5	5.16390E-5	1.80727E-3
Ω	-1.26828E-6	-5.58307E-7	-2.02436E-5	7.83249E-7	-2.00388E-6	-6.99227E-5
ω	3.29547E-6	1.45269E-6	5.16390E-5	-2.00388E-6	8.96190E-6	1.79894E-4
M	1.13256E-4	4.98569E-5	1.80727E-3	-6.99227E-5	1.79894E-4	6.24357E-3

Date of computation: 2026-02-27 23:30 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

26.109

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.562679

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-26.236207

Unit

Source

[2]

Last Observation

Value

2026-02-27.937018

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

38 (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 2026DO11 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	1962-03-04 11:31	> 1 w	0.0665996	0.0176790	0.1127217
EARTH	1973-02-22 20:58	> 1 w	0.0721120	0.0176945	0.3443762
EARTH	2015-03-14 21:01	> 1 d	0.1975239	0.0093946	0.0988142
EARTH	2026-02-28 20:58	< 1 min	0.0242221	0.0241285	0.0000312
EARTH	2037-02-22 01:52	> 1 d	0.0853784	0.0163676	0.0976029
EARTH	2090-03-13 16:01	> 1 w	0.1824549	0.0051295	0.1871231
EARTH	2101-03-04 06:06	> 1 w	0.0503656	0.0197044	0.1441284
EARTH	2112-02-29 05:37	> 1 d	0.0226026	0.0213517	0.0182798
EARTH	2123-02-20 07:18	> 1 mo	0.1360829	0.0085495	0.6816161

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
357.48052262	56.96319319	0.02045055	MINIMUM
183.59974306	243.94655893	0.97142324	SADDLE
4.16662960	245.64631893	2.01948836	SADDLE
180.69033226	61.98068430	2.97151369	MAXIMUM

Download:

MOID Plots

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