Asteroids

141432 2002CQ11 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.559

Aphelion (Q)

1.394

Eccentricity (e)

0.428

Inclination (i)

2.5

deg

Orbit period (P)

352.3

Earth MOID

0.01973

U parameter

1.9

Next Earth close approach

Date

2032-01-13

Nominal distance (from Earth center)

0.06573

9832953

Maximum Brightness

17.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

239

Taxonomic type

Rotation period (T)

2.610

Discovery Information

Discovery Date

2002-02-06

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

0.976206

1-sigma variation

5.706E-8

Unit

Eccentricity (e)

Value

0.427543

1-sigma variation

7.161E-8

Unit

Inclination (i)

Value

2.4672

1-sigma variation

2.336E-6

Unit

Long. of Ascending Node (Ω)

Value

81.3364

1-sigma variation

3.925E-5

Unit

Arg. of Perihelion (ω)

Value

272.6394

1-sigma variation

3.992E-5

Unit

Mean Anomaly (M)

Value

290.44522

1-sigma variation

0.00014

Unit

Perihelion distance

Value

0.558836

1-sigma variation

Unit

Aphelion distance

Value

1.393576

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.202619

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.202838

1-sigma variation

Unit

MOID

Value

0.019728

1-sigma variation

Unit

Orbit Period

Value

352.2983

1-sigma variation

Unit

U parameter

Value

1.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.25560E-15	4.05514E-15	-4.83810E-15	-2.20777E-13	3.60940E-13	-7.96866E-12
e	4.05514E-15	5.12832E-15	-2.41132E-15	-3.93115E-13	5.68139E-13	-9.93084E-12
i	-4.83810E-15	-2.41132E-15	5.45621E-12	1.61919E-11	-1.52223E-11	1.06382E-11
Ω	-2.20777E-13	-3.93115E-13	1.61919E-11	1.54066E-9	-1.56373E-9	5.52710E-10
ω	3.60940E-13	5.68139E-13	-1.52223E-11	-1.56373E-9	1.59354E-9	-8.96267E-10
M	-7.96866E-12	-9.93084E-12	1.06382E-11	5.52710E-10	-8.96267E-10	1.95053E-8

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

2.600

2.610

Unit

Source

[6]

[1]

Quality

Value

Unit

Source

[6]

Amplitude

Value

0.2

0.12

Unit

mag

Source

[6]

[1]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

212

Unit

Source

[1]

Spinvector B

Value

Unit

Source

[1]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

S/Sr

Unit

Source

[2]

[3]

Taxonomy (all)

Value

Unit

Source

[4]

[5]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

20.018

Unit

mag

Source

[7]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[7]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.34

Unit

Source

[8]

Diameter

Value

239

Unit

Source

[8]

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

Unit

Source

[9]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Lowell Observatory Near-Earth Asteroid Photometric Survey (NEAPS): Paper 4. Skiff, Brian A et al.
[2]	EARN	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[3]	EARN	1.) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)
[4]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[5]	EARN	1.) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical characterization of Warm Spitzer-observed near-Earth objects) 2.) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)
[6]	EARN	1.) Polishook, D. (2012) MPB 39, 187-192. (LIGHTCURVES AND SPIN PERIODS OF NEAR-EARTH ASTEROIDS, THE WISE OBSERVATORY, 2005 - 2010) (1862,3361,5143,10115,40267,66251,68216,86829, 105140,138893,141432,141495,152931,185851,2009UN3) 2.) Polishook, D. et al. (2005) ACM2005-Abstr, p. 60-61. (photometry of Atens) ((86450) 2000 CK33, (86667)2000 FO10, (85989) 1999JD6,2002CQ11 )
[7]	ESA Aegis	ESA orbit determination and impact monitoring system
[8]	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.
[9]	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

3746

Unit

Source

[1]

Unobserved

Value

4927

Unit

Source

[1]

Normalized RMS of residuals

Value

0.612697

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2002-02-06.11182

Unit

Source

[2]

Last Observation

Value

2012-05-10.09002

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

471 (2)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2003-01-11

Unit

Source

[3]

Last Observation

Value

2003-01-13

Unit

Source

[3]

Delay (Discarded)

Value

3 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

1 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

4 (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 141432 2002CQ11 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	1950-05-11 20:57	1.4	0.1181550	0.1180751	0.0000266
VENUS	1966-12-10 16:44	< 1 min	0.0081220	0.0081197	0.0000008
VENUS	1969-01-21 00:27	< 1 min	0.0393913	0.0393835	0.0000026
EARTH	1972-01-15 18:06	< 1 min	0.1490063	0.1489990	0.0000024
EARTH	1973-01-08 21:10	< 1 min	0.0505463	0.0505393	0.0000023
EARTH	1980-05-13 05:36	< 1 min	0.1786543	0.1786517	0.0000009
EARTH	1981-05-15 13:04	< 1 min	0.0207111	0.0207104	0.0000002
EARTH	1982-05-08 19:41	< 1 min	0.1998608	0.1998587	0.0000007
EARTH	2003-01-11 19:27	< 1 s	0.0454977	0.0454977	0.0000000
EARTH	2004-01-11 04:27	< 1 s	0.1516395	0.1516394	0.0000000
EARTH	2011-05-18 01:32	< 1 s	0.0891283	0.0891281	0.0000001
EARTH	2012-05-12 09:23	< 1 s	0.1022042	0.1022040	0.0000001
VENUS	2021-05-04 12:20	< 1 min	0.0115311	0.0115301	0.0000003
EARTH	2032-01-13 00:50	< 1 min	0.0657292	0.0657151	0.0000047
EARTH	2033-01-11 06:04	< 1 min	0.1561751	0.1561608	0.0000048
EARTH	2039-05-17 15:02	< 1 min	0.0996090	0.0995930	0.0000053
EARTH	2040-05-11 13:53	< 1 min	0.1161775	0.1161616	0.0000053
VENUS	2054-12-02 19:21	< 1 min	0.0271750	0.0271715	0.0000012
VENUS	2057-01-11 08:25	< 1 min	0.0442056	0.0442036	0.0000007
EARTH	2059-01-16 00:18	< 1 min	0.1526487	0.1526434	0.0000018
EARTH	2060-01-09 21:36	< 1 min	0.0574565	0.0574499	0.0000022
VENUS	2061-09-07 02:35	< 1 min	0.0097269	0.0097195	0.0000025
EARTH	2067-05-15 06:03	< 1 min	0.1682881	0.1682839	0.0000014
EARTH	2068-05-15 05:21	< 1 min	0.0249198	0.0249170	0.0000009
EARTH	2090-01-13 09:19	< 1 min	0.0919457	0.0919295	0.0000054
EARTH	2091-01-09 07:54	< 1 min	0.1053706	0.1053544	0.0000054
EARTH	2098-05-17 11:57	< 1 min	0.1266975	0.1266833	0.0000047
EARTH	2099-05-14 12:49	< 1 min	0.0664214	0.0664084	0.0000043
VENUS	2109-04-23 05:58	< 1 min	0.0400680	0.0400575	0.0000035
EARTH	2119-01-18 05:28	< 1 min	0.1772436	0.1772289	0.0000049
EARTH	2120-01-11 10:04	< 1 min	0.0429554	0.0429425	0.0000043

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
265.47756520	131.74087020	0.01954829	MINIMUM
90.78622394	7.61853757	0.02045753	MINIMUM
178.65813130	70.26727403	0.40223086	SADDLE
356.70363383	248.10175362	0.44778036	SADDLE
356.73703430	68.13597687	1.55277556	SADDLE
178.65787492	250.26015879	2.39819721	MAXIMUM

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MOID Plots

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