Asteroids

511137 2013XM24 help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.959

Aphelion (Q)

2.375

Eccentricity (e)

0.425

Inclination (i)

38.4

deg

Orbit period (P)

786.3

Earth MOID

0.10654

U parameter

1.2

Next Earth close approach

Date

2042-06-26

Nominal distance (from Earth center)

0.11693

17492643

Maximum Brightness

15.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

400 - 900*

Taxonomic type

Rotation period (T)

37.90

Discovery Information

Discovery Date

2013-12-13

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.667180

1-sigma variation

5.459E-8

Unit

Eccentricity (e)

Value

0.424604

1-sigma variation

2.818E-8

Unit

Inclination (i)

Value

38.3650

1-sigma variation

1.982E-5

Unit

Long. of Ascending Node (Ω)

Value

99.4131

1-sigma variation

6.046E-6

Unit

Arg. of Perihelion (ω)

Value

118.2482

1-sigma variation

1.042E-5

Unit

Mean Anomaly (M)

Value

128.70140

1-sigma variation

0.00010

Unit

Perihelion distance

Value

0.959290

1-sigma variation

Unit

Aphelion distance

Value

2.375071

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.726829

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.119745

1-sigma variation

Unit

MOID

Value

0.106539

1-sigma variation

Unit

Orbit Period

Value

786.2711

1-sigma variation

Unit

U parameter

Value

1.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.98057E-15	5.31412E-16	3.14179E-14	1.52120E-14	2.29092E-13	-5.28214E-12
e	5.31412E-16	7.94313E-16	1.52171E-14	3.96630E-14	-1.52557E-13	-9.04899E-13
i	3.14179E-14	1.52171E-14	3.92974E-10	-6.67166E-11	8.08114E-11	-7.37919E-11
Ω	1.52120E-14	3.96630E-14	-6.67166E-11	3.65534E-11	-1.72319E-11	-3.21552E-11
ω	2.29092E-13	-1.52557E-13	8.08114E-11	-1.72319E-11	1.08543E-10	-4.36999E-10
M	-5.28214E-12	-9.04899E-13	-7.37919E-11	-3.21552E-11	-4.36999E-10	9.37925E-9

Date of computation: 2025-11-24 16:53 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

37.90

Unit

Source

[1]

Quality

Value

Unit

Source

[1]

Amplitude

Value

0.8

Unit

mag

Source

[1]

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

18.984

Unit

mag

Source

[2]

Slope Parameter (G)

Value

0.15**

Unit

Source

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[3]

Diameter

Value

400 - 900*

Unit

Source

[3]

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.) Warner, B.D. (2015) MPB 42, 41-53. (NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 JUNE-OCTOBER) (45 NEAs)
[2]	ESA Aegis	ESA orbit determination and impact monitoring system
[3]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

4296

Unit

Source

[1]

Unobserved

Value

116

Unit

Source

[1]

Normalized RMS of residuals

Value

0.530338

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2013-12-13.34795

Unit

Source

[2]

Last Observation

Value

2025-09-17.32747

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

249 (3)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2014-06-27

Unit

Source

[3]

Last Observation

Value

2014-06-27

Unit

Source

[3]

Delay (Discarded)

Value

1 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

1 (1)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

2 (1)

Unit

Source

[1]

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
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 511137 2013XM24 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	1986-07-02 19:43	< 1 min	0.1713952	0.1713756	0.0000065
EARTH	2014-06-29 06:56	< 1 s	0.1130836	0.1130835	0.0000000
EARTH	2042-06-26 17:35	< 1 min	0.1169311	0.1169217	0.0000031
EARTH	2070-06-24 01:02	< 1 min	0.1713997	0.1713581	0.0000139

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
38.54374302	174.79672792	0.10653931	MINIMUM
296.85268192	22.31838778	0.51373067	MINIMUM
339.33857619	82.07542303	0.65665344	SADDLE
168.22252484	294.36633047	1.65474332	SADDLE
353.09553406	288.69959206	1.86187503	SADDLE
188.68051122	128.95740487	3.27539663	MAXIMUM

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MOID Plots

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