Asteroids

111253 2001XU10 help

Last update: 2026-10-06 13:16 UTC

Orbital Properties

Epoch

61400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.982

Aphelion (Q)

2.525

Eccentricity (e)

0.440

Inclination (i)

42.0

deg

Orbit period (P)

848.1

Earth MOID

0.02879

U parameter

0.0

Next Earth close approach

Date

2047-08-08

Nominal distance (from Earth center)

0.10279

15377161

Maximum Brightness

14.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

15.3

mag

Diameter

3000

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2001-12-09

Observatory

Lincoln Laboratory ETS, New Mexico

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

61400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.753431

1-sigma variation

4.864E-9

Unit

Eccentricity (e)

Value

0.439879

1-sigma variation

4.115E-8

Unit

Inclination (i)

Value

42.0392

1-sigma variation

5.705E-6

Unit

Long. of Ascending Node (Ω)

Value

310.1391

1-sigma variation

4.664E-6

Unit

Arg. of Perihelion (ω)

Value

6.9709

1-sigma variation

6.778E-6

Unit

Mean Anomaly (M)

Value

41.80494

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.982133

1-sigma variation

Unit

Aphelion distance

Value

2.524728

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.028818

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.525165

1-sigma variation

Unit

MOID

Value

0.028792

1-sigma variation

Unit

Orbit Period

Value

848.0693

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.36580E-17	-3.04740E-17	1.73086E-15	4.50419E-16	-1.01379E-14	-4.07788E-15
e	-3.04740E-17	1.69294E-15	1.67088E-14	3.70337E-15	-2.74928E-14	-5.24027E-15
i	1.73086E-15	1.67088E-14	3.25466E-11	-6.33313E-12	3.94090E-12	-1.60800E-12
Ω	4.50419E-16	3.70337E-15	-6.33313E-12	2.17526E-11	-1.91976E-11	4.94320E-12
ω	-1.01379E-14	-2.74928E-14	3.94090E-12	-1.91976E-11	4.59393E-11	-2.94908E-11
M	-4.07788E-15	-5.24027E-15	-1.60800E-12	4.94320E-12	-2.94908E-11	4.46114E-11

Date of computation: 2026-10-06 13:16 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

[1]

Taxonomy (all)

Value

Unit

Source

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

15.264

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.178

Unit

Source

[4]

Diameter

Value

3000

Unit

Source

[4]

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]	EARN	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[2]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	EARN	1.) Mainzer, A.; Grav, T.; Masiero, J.; Bauer, J.; et al. (2012) Astrophys. J. Let. 760, L12.

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

9736

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.489564

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2000-02-08.34874

Unit

Source

[2]

Last Observation

Value

2026-10-05.737788

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

2310 (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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

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Time step:*

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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 111253 2001XU10 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	1975-08-05 22:43	< 1 min	0.0634903	0.0634875	0.0000009
EARTH	1982-07-27 13:48	< 1 min	0.1140109	0.1140079	0.0000010
EARTH	2047-08-08 10:13	< 1 min	0.1027900	0.1027883	0.0000006
EARTH	2054-07-29 17:17	< 1 min	0.0797794	0.0797775	0.0000006
EARTH	2119-08-11 22:41	< 1 min	0.1438830	0.1438815	0.0000005
EARTH	2126-08-01 12:30	< 1 min	0.0542721	0.0542709	0.0000004

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
355.57731439	207.52566428	0.02879151	MINIMUM
185.81267224	34.88437168	1.54691862	SADDLE
7.25627500	41.81451763	1.96412888	SADDLE
178.18697425	211.33226311	3.53528621	MAXIMUM

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MOID Plots

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