Asteroids

163132 2002CU11 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

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

0.00113

U parameter

0.0

Next Earth close approach

Date

2045-08-25

Nominal distance (from Earth center)

0.14998

22436105

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.219711

1-sigma variation

2.929E-9

Unit

Eccentricity (e)

Value

0.295169

1-sigma variation

3.758E-8

Unit

Inclination (i)

Value

48.7791

1-sigma variation

2.592E-6

Unit

Long. of Ascending Node (Ω)

Value

157.7397

1-sigma variation

5.270E-7

Unit

Arg. of Perihelion (ω)

Value

110.5237

1-sigma variation

9.529E-6

Unit

Mean Anomaly (M)

Value

161.85027

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.859690

1-sigma variation

Unit

Aphelion distance

Value

1.579732

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.250901

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.001195

1-sigma variation

Unit

MOID

Value

0.001132

1-sigma variation

Unit

Orbit Period

Value

492.0211

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.57703E-18	8.67075E-17	-1.63889E-15	-2.79843E-16	-1.24954E-14	-3.09782E-14
e	8.67075E-17	1.41261E-15	-3.42340E-14	-8.08465E-15	-1.49175E-13	-3.39817E-13
i	-1.63889E-15	-3.42340E-14	6.71616E-12	4.96352E-13	-4.06284E-12	1.16315E-11
Ω	-2.79843E-16	-8.08465E-15	4.96352E-13	2.77769E-13	-3.26161E-12	3.83874E-12
ω	-1.24954E-14	-1.49175E-13	-4.06284E-12	-3.26161E-12	9.08104E-11	-1.03448E-12
M	-3.09782E-14	-3.39817E-13	1.16315E-11	3.83874E-12	-1.03448E-12	1.44449E-10

Date of computation: 2025-09-10 00:30 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

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

18.57

Unit

mag

Source

[2]

Slope Parameter (G)

Value

0.15**

Unit

mag

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

7423

Unit

Source

[1]

Unobserved

Value

1217

Unit

Source

[1]

Normalized RMS of residuals

Value

0.488586

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

2022-06-05.168421

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

517 (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

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 163132 2002CU11 from 1950 to 2125

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	0.1516582	0.1516534	0.0000016
EARTH	1956-09-04 05:26	< 1 min	0.1134137	0.1134096	0.0000014
EARTH	1983-08-30 10:49	< 1 min	0.0305320	0.0305300	0.0000007
EARTH	2014-08-30 03:12	< 1 s	0.0346790	0.0346790	0.0000000
EARTH	2045-08-25 16:21	< 1 min	0.1499761	0.1499741	0.0000007
EARTH	2049-09-03 14:33	< 1 min	0.0843736	0.0843714	0.0000007
EARTH	2080-08-31 00:29	< 1 min	0.0042529	0.0042507	0.0000007
EARTH	2084-09-04 09:25	1.2	0.1081844	0.1081224	0.0000207

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
54.17497467	236.27975064	0.00007138	MINIMUM
273.56637171	59.32359913	0.22749267	MINIMUM
344.30291992	143.55933210	0.78915379	SADDLE
160.84800443	335.45104637	1.16718664	SADDLE
349.93753825	335.26976689	1.68902954	SADDLE
207.43334540	198.04845610	2.44410187	MAXIMUM

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MOID Plots

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