Asteroids

304330 2006SX217 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.974

Aphelion (Q)

1.850

Eccentricity (e)

0.310

Inclination (i)

21.0

deg

Orbit period (P)

612.7

Earth MOID

0.03237

U parameter

0.0

Next Earth close approach

Date

2061-04-03

Nominal distance (from Earth center)

0.19585

29298218

Maximum Brightness

18.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

600

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2006-09-30

Observatory

Mt. Lemmon 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.411783

1-sigma variation

3.838E-9

Unit

Eccentricity (e)

Value

0.310088

1-sigma variation

1.053E-8

Unit

Inclination (i)

Value

21.0402

1-sigma variation

1.965E-6

Unit

Long. of Ascending Node (Ω)

Value

32.5964

1-sigma variation

6.232E-6

Unit

Arg. of Perihelion (ω)

Value

176.2371

1-sigma variation

1.060E-5

Unit

Mean Anomaly (M)

Value

327.76437

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.974006

1-sigma variation

Unit

Aphelion distance

Value

1.849559

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.853461

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.032371

1-sigma variation

Unit

MOID

Value

0.032372

1-sigma variation

Unit

Orbit Period

Value

612.7032

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.47305E-17	-6.21505E-18	6.75000E-16	-5.78322E-15	2.01058E-14	-5.02389E-14
e	-6.21505E-18	1.10831E-16	-7.52816E-15	6.46408E-14	-9.44184E-14	5.32712E-14
i	6.75000E-16	-7.52816E-15	3.86192E-12	-4.02452E-12	5.97065E-12	-4.32235E-12
Ω	-5.78322E-15	6.46408E-14	-4.02452E-12	3.88356E-11	-5.41193E-11	3.63135E-11
ω	2.01058E-14	-9.44184E-14	5.97065E-12	-5.41193E-11	1.12277E-10	-1.03275E-10
M	-5.02389E-14	5.32712E-14	-4.32235E-12	3.63135E-11	-1.03275E-10	1.86021E-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

Unit

Source

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

18.974

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.033

0.135

Unit

Source

[3]

[2]

Diameter

Value

600

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

0.41

Unit

V-R

Source

[4]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Radar R

Unit

Source

[5]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	EARN	1.) Joseph R. Masiero et al 2021 Planet. Sci. J. 2 162
[3]	EARN	1.) Mainzer, A. et al. (2014) Astrophys. J. 792, 30. (Initial Performance of the NEOWISE Reactivation Mission) (prel.diameters & albedos for 61 NEOs) 2.) Nugent, C.R. et al. (2015) Astrophys. J. 814_117 (13pp) (NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos)(201 NEOs)
[4]	EARN	1.) Erasmus, N.; Mommert, M.; Trilling, D.E.; Sicafoose, A.A.; et al. (2017) Astron. J. 154, A162.
[5]	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

8060

Unit

Source

[1]

Unobserved

Value

715

Unit

Source

[1]

Normalized RMS of residuals

Value

0.624733

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2001-10-19.48069

Unit

Source

[2]

Last Observation

Value

2023-11-13.35866

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

345 (3)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2014-04-19

Unit

Source

[3]

Last Observation

Value

2014-04-26

Unit

Source

[3]

Delay (Discarded)

Value

13 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

3 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

16 (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 304330 2006SX217 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	1957-04-18 04:30	< 1 min	0.0544951	0.0544921	0.0000010
EARTH	1962-05-04 12:37	< 1 min	0.1178876	0.1178839	0.0000012
EARTH	2009-04-06 21:18	< 1 min	0.1622902	0.1622896	0.0000002
EARTH	2014-04-23 17:20	< 1 s	0.0315597	0.0315597	0.0000000
EARTH	2019-05-11 18:29	< 1 s	0.1845733	0.1845728	0.0000002
EARTH	2061-04-03 16:43	< 1 min	0.1958465	0.1958433	0.0000011
EARTH	2066-04-21 11:35	< 1 min	0.0351044	0.0351028	0.0000005
EARTH	2071-05-07 09:51	< 1 min	0.1410988	0.1410929	0.0000020
EARTH	2123-04-20 02:49	1.1	0.0529642	0.0529456	0.0000062

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
2.73739268	109.46652092	0.03112061	MINIMUM
179.47714317	286.98326595	0.85521074	SADDLE
2.52560225	289.20247531	1.96859104	SADDLE
181.72863407	108.50945131	2.85434823	MAXIMUM

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MOID Plots

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