Asteroids

163132 2002CU11 help

Last update: 2026-06-04 23:11 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.860

Aphelion (Q)

1.580

Eccentricity (e)

0.295

Inclination (i)

48.8

deg

Orbit period (P)

492.0

Earth MOID

0.00085

U parameter

0.0

Next Earth close approach

Date

2045-08-25

Nominal distance (from Earth center)

0.14998

22436129

Maximum Brightness

17.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

18.6

mag

Diameter

460

Taxonomic type

C/X

Rotation period (T)

Discovery Information

Discovery Date

2002-02-07

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.219723

1-sigma variation

2.693E-9

Unit

Eccentricity (e)

Value

0.295130

1-sigma variation

3.480E-8

Unit

Inclination (i)

Value

48.7822

1-sigma variation

2.570E-6

Unit

Long. of Ascending Node (Ω)

Value

157.7359

1-sigma variation

5.253E-7

Unit

Arg. of Perihelion (ω)

Value

110.5304

1-sigma variation

8.914E-6

Unit

Mean Anomaly (M)

Value

308.17612

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.859746

1-sigma variation

Unit

Aphelion distance

Value

1.579700

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.251988

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.000900

1-sigma variation

Unit

MOID

Value

0.000853

1-sigma variation

Unit

Orbit Period

Value

492.0285

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.25050E-18	7.03467E-17	-1.40218E-15	-3.08419E-16	-8.67105E-15	-2.83342E-14
e	7.03467E-17	1.21078E-15	-3.11873E-14	-8.40297E-15	-1.02691E-13	-3.03483E-13
i	-1.40218E-15	-3.11873E-14	6.60662E-12	4.91317E-13	-4.55986E-12	1.10802E-11
Ω	-3.08419E-16	-8.40297E-15	4.91317E-13	2.75979E-13	-3.15882E-12	3.96254E-12
ω	-8.67105E-15	-1.02691E-13	-4.55986E-12	-3.15882E-12	7.94557E-11	-1.05622E-11
M	-2.83342E-14	-3.03483E-13	1.10802E-11	3.96254E-12	-1.05622E-11	1.42466E-10

Date of computation: 2026-06-04 23:11 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

C/X

Unit

Source

[1]

Taxonomy (all)

Value

C/X

Unit

Source

[1]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

18.568

Unit

mag

Source

[2]

Slope Parameter (G)

Value

0.15**

Unit

Source

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.408

Unit

Source

[3]

Diameter

Value

460

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

Radar R

Visual S

Unit

Source

[4]

[1]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical characterization of Warm Spitzer-observed near-Earth objects)
[2]	ESA Aegis	ESA orbit determination and impact monitoring system
[3]	EARN	1.) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs) 2.) Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (2011) Astrophys. J. 741, A90. See also Grav 2012b and Masiero 2012.
[4]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

8765

Unit

Source

[1]

Unobserved

Value

144

Unit

Source

[1]

Normalized RMS of residuals

Value

0.489009

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2002-02-07.46472

Unit

Source

[2]

Last Observation

Value

2026-02-06.273663

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

520 (11)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2014-08-27

Unit

Source

[3]

Last Observation

Value

2014-08-31

Unit

Source

[3]

Delay (Discarded)

Value

6 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

8 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

14 (0)

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

Filters

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Final Date: *

Normalised Only accepted

Max residual (arcsec):

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Computation parameters

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Initial Date: *

Final Date: *

Output option:

One line per time step

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* - 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 163132 2002CU11 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	1952-08-25 01:11	< 1 min	0.1516586	0.1516542	0.0000015
EARTH	1956-09-04 05:26	< 1 min	0.1134134	0.1134096	0.0000013
EARTH	1983-08-30 10:49	< 1 min	0.0305318	0.0305300	0.0000006
EARTH	2014-08-30 03:12	< 1 s	0.0346790	0.0346790	0.0000000
EARTH	2045-08-25 16:21	< 1 min	0.1499763	0.1499745	0.0000006
EARTH	2049-09-03 14:33	< 1 min	0.0843734	0.0843714	0.0000007
EARTH	2080-08-31 00:29	< 1 min	0.0042531	0.0042511	0.0000007
EARTH	2084-09-04 09:25	1.1	0.1081893	0.1081326	0.0000189

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
54.19799808	234.11632244	0.00085299	MINIMUM
273.57676078	57.16301641	0.22795303	MINIMUM
344.33122190	141.37466890	0.78927690	SADDLE
160.84753203	333.31315241	1.16714092	SADDLE
350.00406005	333.16414751	1.68924704	SADDLE
207.51870597	195.96379358	2.44462413	MAXIMUM

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MOID Plots

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