Asteroids

481394 2006SF6 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.684

Aphelion (Q)

1.217

Eccentricity (e)

0.281

Inclination (i)

5.8

deg

Orbit period (P)

338.3

Earth MOID

0.01893

U parameter

0.0

Next Earth close approach

Date

2030-07-09

Nominal distance (from Earth center)

0.13128

19639699

Maximum Brightness

18.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

19.9

mag

Diameter

270 - 600*

Taxonomic type

Rotation period (T)

11.52

Discovery Information

Discovery Date

2006-09-17

Observatory

University of Arizona 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

0.950142

1-sigma variation

9.614E-10

Unit

Eccentricity (e)

Value

0.280576

1-sigma variation

3.252E-8

Unit

Inclination (i)

Value

5.8399

1-sigma variation

2.536E-6

Unit

Long. of Ascending Node (Ω)

Value

227.9543

1-sigma variation

6.493E-6

Unit

Arg. of Perihelion (ω)

Value

305.5709

1-sigma variation

6.457E-6

Unit

Mean Anomaly (M)

Value

300.43117

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.683555

1-sigma variation

Unit

Aphelion distance

Value

1.216729

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.256589

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.055139

1-sigma variation

Unit

MOID

Value

0.018934

1-sigma variation

Unit

Orbit Period

Value

338.2836

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.24356E-19	-8.29145E-18	-1.21819E-15	3.26797E-15	-3.37280E-15	-4.67529E-15
e	-8.29145E-18	1.05752E-15	1.43763E-14	1.72051E-15	-1.53214E-14	1.70476E-13
i	-1.21819E-15	1.43763E-14	6.43265E-12	-2.76213E-12	2.67282E-12	6.66518E-12
Ω	3.26797E-15	1.72051E-15	-2.76213E-12	4.21568E-11	-4.14487E-11	-1.36750E-11
ω	-3.37280E-15	-1.53214E-14	2.67282E-12	-4.14487E-11	4.16900E-11	1.20708E-11
M	-4.67529E-15	1.70476E-13	6.66518E-12	-1.36750E-11	1.20708E-11	4.05568E-11

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

11.52

Unit

Source

[2]

Quality

Value

Unit

Source

[-]

Amplitude

Value

0.97

1.07

Unit

mag

Source

[2]

[1]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[1]

Spinvector B

Value

Unit

Source

[1]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[3]

[4]

Taxonomy (all)

Value

Unit

Source

[5]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

19.942

Unit

mag

Source

[6]

Slope Parameter (G)

Value

0.15**

Unit

Source

[6]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[7]

Diameter

Value

270 - 600*

Unit

Source

[7]

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.) Near-Earth Asteroid Lightcurve Analysis at the Center for Solar System Studies: 2019 September-2020 January, B.D. Warner
[2]	EARN	1.) Near-Earth Asteroid Lightcurve Analysis at the Center for Solar System Studies: 2018 July-September, B.D. Warner
[3]	EARN	1.) Michaël Marsset et al 2022 AJ 163 165
[4]	EARN	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[5]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[6]	ESA Aegis	ESA orbit determination and impact monitoring system
[7]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

5146

Unit

Source

[1]

Unobserved

Value

2179

Unit

Source

[1]

Normalized RMS of residuals

Value

0.435304

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2006-09-17.26607

Unit

Source

[2]

Last Observation

Value

2020-10-19.629263

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1109 (4)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2019-11-11

Unit

Source

[3]

Last Observation

Value

2019-11-13

Unit

Source

[3]

Delay (Discarded)

Value

2 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

2 (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

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

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 481394 2006SF6 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	1957-07-21 01:01	< 1 min	0.1590215	0.1590213	0.0000001
EARTH	1958-10-29 20:15	< 1 min	0.1567537	0.1567535	0.0000001
EARTH	1970-11-15 03:04	< 1 min	0.0952593	0.0952591	0.0000001
EARTH	1982-11-12 08:54	< 1 min	0.1105596	0.1105592	0.0000001
EARTH	1993-07-18 06:38	< 1 min	0.1573470	0.1573466	0.0000001
EARTH	1994-10-23 17:35	< 1 min	0.1763934	0.1763931	0.0000001
EARTH	2005-07-11 18:18	< 1 s	0.0926215	0.0926214	0.0000000
EARTH	2007-11-18 15:29	< 1 s	0.1183199	0.1183196	0.0000001
EARTH	2017-07-17 15:12	< 1 s	0.1616273	0.1616270	0.0000001
EARTH	2019-11-21 00:00	< 1 s	0.0288613	0.0288612	0.0000000
EARTH	2030-07-09 10:11	< 1 s	0.1312833	0.1312829	0.0000001
EARTH	2031-10-14 21:42	< 1 min	0.1986704	0.1986702	0.0000000
EARTH	2032-11-15 07:06	< 1 s	0.1925624	0.1925620	0.0000001
EARTH	2042-07-17 12:41	< 1 s	0.1593897	0.1593892	0.0000002
EARTH	2044-11-19 23:08	< 1 s	0.0397468	0.0397463	0.0000002
EARTH	2055-07-10 15:49	< 1 s	0.0986674	0.0986672	0.0000001
EARTH	2057-11-17 18:39	< 1 s	0.1294743	0.1294742	0.0000000
EARTH	2067-07-19 05:22	< 1 s	0.1831159	0.1831155	0.0000001
EARTH	2069-11-19 22:58	< 1 s	0.0393008	0.0393004	0.0000002
EARTH	2080-08-14 15:30	< 1 min	0.1981754	0.1981752	0.0000001
VENUS	2081-04-09 13:34	< 1 min	0.0450303	0.0450299	0.0000001
EARTH	2081-11-10 17:46	< 1 min	0.1126831	0.1126827	0.0000001
VENUS	2083-02-13 02:27	< 1 min	0.0418291	0.0418288	0.0000001
VENUS	2084-12-18 09:14	< 1 min	0.0405243	0.0405241	0.0000001
VENUS	2086-10-23 10:00	< 1 min	0.0409095	0.0409091	0.0000001
VENUS	2088-08-27 03:08	< 1 min	0.0433852	0.0433846	0.0000002
VENUS	2090-07-01 06:50	< 1 min	0.0499296	0.0499285	0.0000004
EARTH	2093-11-17 16:21	< 1 min	0.0607903	0.0607885	0.0000006
EARTH	2103-07-17 03:09	< 1 min	0.1355436	0.1355420	0.0000005
EARTH	2105-11-18 03:57	< 1 min	0.1042200	0.1042179	0.0000007
EARTH	2115-08-15 17:44	< 1 min	0.1931198	0.1931193	0.0000002
EARTH	2116-11-16 14:44	< 1 min	0.0736994	0.0736985	0.0000003
EARTH	2126-07-12 01:57	< 1 s	0.0991995	0.0991991	0.0000001

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
260.35888020	314.41333543	0.01893422	MINIMUM
100.21084966	184.93699331	0.09210522	MINIMUM
177.98213951	248.48092613	0.23009419	SADDLE
1.37129002	69.78314410	0.31792346	SADDLE
4.00561374	253.26077817	1.68766094	SADDLE
182.99345297	72.25282561	2.20945938	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out