Asteroids

221455 2006BC10 help

Last update: 2026-07-30 09:40 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.692

Aphelion (Q)

3.341

Eccentricity (e)

0.657

Inclination (i)

0.9

deg

Orbit period (P)

1046.0

Earth MOID

0.00575

U parameter

0.0

Next Earth close approach

Date

2026-08-28

Nominal distance (from Earth center)

0.02396

3584830

Maximum Brightness

13.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

19.5

mag

Diameter

300 - 700*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2006-01-23

Observatory

Steward Observatory, Kitt Peak-Spacewatch

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

2.016595

1-sigma variation

5.925E-9

Unit

Eccentricity (e)

Value

0.656754

1-sigma variation

2.679E-8

Unit

Inclination (i)

Value

0.9148

1-sigma variation

8.164E-6

Unit

Long. of Ascending Node (Ω)

Value

20.2479

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

235.2358

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

348.39351

1-sigma variation

0.00002

Unit

Perihelion distance

Value

0.692188

1-sigma variation

Unit

Aphelion distance

Value

3.341001

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.829764

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.166096

1-sigma variation

Unit

MOID

Value

0.005754

1-sigma variation

Unit

Orbit Period

Value

1045.9871

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.51035E-17	-8.37156E-17	-1.83984E-15	8.55669E-14	-8.83029E-14	-9.37164E-14
e	-8.37156E-17	7.17839E-16	-5.57572E-16	2.79743E-14	-5.58098E-14	3.05411E-13
i	-1.83984E-15	-5.57572E-16	6.66581E-11	-2.75233E-9	2.75218E-9	4.53419E-12
Ω	8.55669E-14	2.79743E-14	-2.75233E-9	1.71269E-7	-1.71235E-7	-3.92661E-10
ω	-8.83029E-14	-5.58098E-14	2.75218E-9	-1.71235E-7	1.71237E-7	3.47448E-10
M	-9.37164E-14	3.05411E-13	4.53419E-12	-3.92661E-10	3.47448E-10	3.71326E-10

Date of computation: 2026-07-30 09:40 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

[1]

Taxonomy (all)

Value

Unit

Source

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

19.498

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[4]

Diameter

Value

300 - 700*

Unit

Source

[4]

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.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[2]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

7303

Unit

Source

[1]

Unobserved

Value

202

Unit

Source

[1]

Normalized RMS of residuals

Value

0.548659

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2006-01-23.12261

Unit

Source

[2]

Last Observation

Value

2026-01-21.367605

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

396 (5)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

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Computation parameters

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Final Date: *

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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 221455 2006BC10 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
VENUS	1960-10-21 22:52	< 1 min	0.0121199	0.0121192	0.0000002
EARTH	1966-08-13 03:01	< 1 min	0.1562068	0.1562048	0.0000007
EARTH	1969-03-31 06:09	< 1 min	0.1458183	0.1458151	0.0000011
VENUS	1969-05-03 11:17	< 1 min	0.0349101	0.0349090	0.0000004
EARTH	1986-08-21 00:57	< 1 min	0.0916258	0.0916212	0.0000015
EARTH	1989-04-06 17:19	< 1 min	0.1927362	0.1927323	0.0000013
EARTH	2006-08-11 20:22	< 1 min	0.1671139	0.1671136	0.0000001
EARTH	2009-03-30 05:24	< 1 min	0.1381965	0.1381960	0.0000002
VENUS	2009-05-15 21:11	< 1 min	0.0388191	0.0388188	0.0000001
EARTH	2026-08-28 15:45	< 1 min	0.0239631	0.0239605	0.0000009
EARTH	2052-03-19 04:01	< 1 min	0.0078352	0.0078180	0.0000057
MARS	2058-04-26 14:18	1.2	0.0272795	0.0272791	0.0000002
EARTH	2075-03-12 22:00	8.6	0.1041419	0.1038118	0.0001100
EARTH	2092-08-31 17:34	8.2	0.0511588	0.0508829	0.0000920
VENUS	2112-08-25 04:21	36.1	0.0460018	0.0455157	0.0001625
4 Vesta	2114-12-14 00:16	3.8	0.0021797	0.0021402	0.0000195
EARTH	2121-03-19 01:30	13.6	0.0463184	0.0458665	0.0001507
VENUS	2121-05-17 19:22	35.0	0.0134670	0.0131660	0.0001012

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
320.45619935	73.56365910	0.00575444	MINIMUM
40.60243399	230.01472384	0.01170938	MINIMUM
0.77615941	152.12942429	0.32281488	SADDLE
0.73605096	332.05883422	1.67763843	SADDLE
180.15868706	331.28647303	2.35558269	SADDLE
180.15817469	151.29023891	4.35568375	MAXIMUM

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MOID Plots

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