Asteroids

248590 2006CS help

Last update: 2026-07-30 13:55 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.884

Aphelion (Q)

4.949

Eccentricity (e)

0.697

Inclination (i)

52.3

deg

Orbit period (P)

1818.9

Earth MOID

0.09924

U parameter

0.0

Next Earth close approach

Date

2031-03-15

Nominal distance (from Earth center)

0.10232

15306517

Maximum Brightness

22.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

16.4

mag

Diameter

6990

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2006-02-01

Observatory

Siding Spring 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

2.916181

1-sigma variation

4.673E-9

Unit

Eccentricity (e)

Value

0.697008

1-sigma variation

2.003E-8

Unit

Inclination (i)

Value

52.3104

1-sigma variation

6.374E-6

Unit

Long. of Ascending Node (Ω)

Value

172.4123

1-sigma variation

1.089E-5

Unit

Arg. of Perihelion (ω)

Value

346.4076

1-sigma variation

9.823E-6

Unit

Mean Anomaly (M)

Value

17.64708

1-sigma variation

1.760E-6

Unit

Perihelion distance

Value

0.883581

1-sigma variation

Unit

Aphelion distance

Value

4.948781

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.099828

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

3.642962

1-sigma variation

Unit

MOID

Value

0.099239

1-sigma variation

Unit

Orbit Period

Value

1818.9472

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.18352E-17	-1.99955E-17	7.55880E-16	1.88100E-14	-1.00650E-16	-4.85704E-15
e	-1.99955E-17	4.01269E-16	-2.12617E-15	-4.27687E-15	-3.19558E-14	-9.82946E-16
i	7.55880E-16	-2.12617E-15	4.06236E-11	2.36850E-11	-2.41837E-11	1.88372E-12
Ω	1.88100E-14	-4.27687E-15	2.36850E-11	1.18493E-10	-7.10172E-11	-2.19150E-12
ω	-1.00650E-16	-3.19558E-14	-2.41837E-11	-7.10172E-11	9.64823E-11	-8.45801E-12
M	-4.85704E-15	-9.82946E-16	1.88372E-12	-2.19150E-12	-8.45801E-12	3.09813E-12

Date of computation: 2026-07-30 13:55 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

16.391

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.02

0.009

Unit

Source

[5]

[4]

Diameter

Value

6990

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.) N. G. Simion et al, Spectral properties of near-Earth objects with low-Jovian Tisserand invariant (2021)
[2]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	EARN	1.) Joseph R. Masiero et al 2021 Planet. Sci. J. 2 162
[5]	EARN	1.) Masiero, J.R. et al. (2015) Astrophys. J. 809, 179(8p). (THE EUPHROSYNE FAMILY'S CONTRIBUTION TO THE LOW ALBEDO NEAR-EARTH ASTEROIDS) (...) 2.) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs) 3.) Mommert, M. et al. (2015) Astron. J. 150, 106(9pp). (ExploreNEOs VIII: Dormant Short-Period Comets in the Near-Earth Asteroid Population) (23 NEOs) 4.) Nugent, C.R. et al. (2016) Astron. J. 152_63 (12pp) (NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos) (207 NEOs) 5.) Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (2011) Astrophys. J. 741, A90. See also Grav 2012b and Masiero 2012. 6.) Mainzer, A.; Grav, T.; Masiero, J.; Bauer, J.; et al. (2012) Astrophys. J. Let. 760, L12. 7.) Licandro, J. et al. (2016) Astron. Astrophys. 585, A9. (Size and albedo distributions of asteroids in cometary orbits using WISE data)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

10996

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.508914

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1996-06-20.27683

Unit

Source

[2]

Last Observation

Value

2026-07-29.479331

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

950 (8)

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):

* - these fields are required

Plot

Computation parameters

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Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

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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 248590 2006CS 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
JUPITER	1974-11-26 13:23	< 1 min	0.5192235	0.5192226	0.0000003
EARTH	2026-03-20 19:44	< 1 s	0.1577021	0.1577018	0.0000001
EARTH	2031-03-15 19:23	< 1 s	0.1023177	0.1023175	0.0000001
JUPITER	2034-04-06 13:28	< 1 min	0.3642638	0.3642623	0.0000005
JUPITER	2069-10-22 12:47	< 1 min	0.4053915	0.4053874	0.0000014
EARTH	2116-03-13 09:39	< 1 min	0.0179067	0.0179059	0.0000003

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
6.12879166	67.54387273	0.09923926	MINIMUM
348.53053355	219.78932053	1.86759188	SADDLE
177.77457183	239.16805805	3.96376411	SADDLE
181.48001051	60.15882426	5.92671349	MAXIMUM

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MOID Plots

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