Asteroids

2006WB help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.703

Aphelion (Q)

1.005

Eccentricity (e)

0.177

Inclination (i)

4.9

deg

Orbit period (P)

288.3

Earth MOID

0.00325

U parameter

0.8

A₂

-69.0

10^-15au/days²

Next Earth close approach

Date

2039-11-04

Nominal distance (from Earth center)

0.04205

6290748

Maximum Brightness

18.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.1

mag

Diameter

60 - 140*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2006-11-16

Observatory

Catalina Sky 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.854077

1-sigma variation

8.090E-9

Unit

Eccentricity (e)

Value

0.176536

1-sigma variation

1.553E-8

Unit

Inclination (i)

Value

4.8976

1-sigma variation

1.349E-6

Unit

Long. of Ascending Node (Ω)

Value

64.7006

1-sigma variation

1.301E-6

Unit

Arg. of Perihelion (ω)

Value

159.4373

1-sigma variation

8.440E-6

Unit

Mean Anomaly (M)

Value

186.59998

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.703302

1-sigma variation

Unit

Aphelion distance

Value

1.004852

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.004124

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.302817

1-sigma variation

Unit

MOID

Value

0.003253

1-sigma variation

Unit

Orbit Period

Value

288.2994

1-sigma variation

Unit

U parameter

Value

0.8

1-sigma variation

Unit

A₂

Value

-68.99783

1-sigma variation

4.15910

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	6.54435E-17	-6.96328E-17	2.07077E-15	7.60805E-16	-2.18972E-14	-5.54202E-14	-4.73701E-9
e	-6.96328E-17	2.41146E-16	-1.80217E-14	-7.16619E-15	-7.66585E-14	2.10652E-13	-4.58365E-8
i	2.07077E-15	-1.80217E-14	1.81901E-12	7.44410E-13	8.47656E-12	-1.58502E-11	4.53996E-6
Ω	7.60805E-16	-7.16619E-15	7.44410E-13	1.69366E-12	1.17240E-12	-5.24334E-12	1.54400E-6
ω	-2.18972E-14	-7.66585E-14	8.47656E-12	1.17240E-12	7.12309E-11	-7.44052E-11	3.27590E-5
M	-5.54202E-14	2.10652E-13	-1.58502E-11	-5.24334E-12	-7.44052E-11	1.85986E-10	-4.26547E-5
A₂	-4.73701E-9	-4.58365E-8	4.53996E-6	1.54400E-6	3.27590E-5	-4.26547E-5	1.72981E1

Date of computation: 2026-03-17 23:26 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

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

23.091

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

60 - 140*

Unit

Source

[2]

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

[3]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude
[3]	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

6600

Unit

Source

[1]

Unobserved

Value

522

Unit

Source

[1]

Normalized RMS of residuals

Value

0.576309

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2006-11-16.40836

Unit

Source

[2]

Last Observation

Value

2024-12-11.08986

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

321 (7)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2006-12-14

Unit

Source

[3]

Last Observation

Value

2024-12-06

Unit

Source

[3]

Delay (Discarded)

Value

7 (2)

Unit

Source

[1]

Doppler (Discarded)

Value

7 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

14 (2)

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

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 2006WB 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	1951-12-12 06:11	1.4	0.0467743	0.0467422	0.0000107
EARTH	1958-10-19 08:38	< 1 min	0.1548827	0.1548482	0.0000115
EARTH	1969-11-29 08:37	< 1 min	0.0084448	0.0084428	0.0000007
VENUS	1977-05-17 10:23	< 1 min	0.0165831	0.0165829	0.0000001
EARTH	1980-11-20 07:48	< 1 min	0.0215246	0.0215242	0.0000002
EARTH	1991-10-18 06:58	< 1 min	0.1078810	0.1078797	0.0000004
EARTH	1995-12-13 03:57	< 1 s	0.1554245	0.1554234	0.0000004
VENUS	1997-01-16 00:38	< 1 min	0.0188804	0.0188800	0.0000001
EARTH	2006-12-05 04:06	< 1 min	0.0180662	0.0180661	0.0000000
VENUS	2011-03-12 13:58	< 1 min	0.0235233	0.0235230	0.0000001
EARTH	2013-10-16 15:35	< 1 s	0.1824251	0.1824244	0.0000003
VENUS	2019-10-11 04:21	< 1 min	0.0278409	0.0278408	0.0000000
EARTH	2024-11-26 18:00	< 1 s	0.0059576	0.0059576	0.0000000
EARTH	2039-11-04 01:45	< 1 min	0.0420511	0.0420508	0.0000001
EARTH	2043-12-11 02:15	< 1 s	0.1148431	0.1148420	0.0000004
EARTH	2058-10-12 05:24	< 1 s	0.1768386	0.1768342	0.0000015
EARTH	2062-11-13 04:25	< 1 min	0.0308510	0.0308487	0.0000007
VENUS	2063-12-25 01:14	< 1 min	0.0423931	0.0423878	0.0000018
EARTH	2066-12-09 22:25	< 1 s	0.1514902	0.1514864	0.0000013
VENUS	2069-07-28 20:36	3.3	0.0158284	0.0158257	0.0000009
EARTH	2085-10-16 05:33	< 1 min	0.0770222	0.0770117	0.0000035
VENUS	2088-08-03 06:54	< 1 min	0.0405850	0.0405672	0.0000059
EARTH	2089-11-30 12:15	< 1 min	0.0099919	0.0099888	0.0000010
EARTH	2100-10-16 07:48	3.8	0.0881664	0.0880783	0.0000294
EARTH	2104-12-09 21:02	< 1 min	0.1797027	0.1795863	0.0000388
VENUS	2108-06-06 18:11	7.8	0.0338395	0.0337342	0.0000351
VENUS	2113-12-12 03:38	32.1	0.0164895	0.0164781	0.0000041
EARTH	2115-10-16 09:48	31.4	0.0783448	0.0779088	0.0001456
VENUS	2119-07-04 19:15	104.5	0.0406391	0.0389345	0.0005711
EARTH	2119-12-12 02:42	37.0	0.0672126	0.0658744	0.0004464

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
206.21356438	325.43858495	0.00353642	MINIMUM
4.38673038	126.99564978	0.30812717	SADDLE
5.74677388	308.66412078	1.69383007	SADDLE
184.71964333	127.63511688	2.01542037	MAXIMUM

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MOID Plots

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