Asteroids

276049 2002CE26 help

Last update: 2025-02-10 19:08 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.980

Aphelion (Q)

3.486

Eccentricity (e)

0.561

Inclination (i)

47.3

deg

Orbit period (P)

1218.9

Earth MOID

0.09677

U parameter

0.0

Next Earth close approach

Date

Nominal distance (from Earth center)

Maximum Brightness

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

16.6

mag

Diameter

3331

Taxonomic type

Rotation period (T)

3.293

Discovery Information

Discovery Date

2002-02-10

Observatory

Lincoln Laboratory ETS, New Mexico

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.233114

1-sigma variation

3.697E-10

Unit

Eccentricity (e)

Value

0.561181

1-sigma variation

1.007E-8

Unit

Inclination (i)

Value

47.2889

1-sigma variation

7.429E-6

Unit

Long. of Ascending Node (Ω)

Value

161.8692

1-sigma variation

1.208E-6

Unit

Arg. of Perihelion (ω)

Value

228.0646

1-sigma variation

4.259E-6

Unit

Mean Anomaly (M)

Value

57.10455

1-sigma variation

7.678E-7

Unit

Perihelion distance

Value

0.979933

1-sigma variation

Unit

Aphelion distance

Value

3.486296

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.456286

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.104583

1-sigma variation

Unit

MOID

Value

0.096774

1-sigma variation

Unit

Orbit Period

Value

1218.8909

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.36665E-19	-1.68085E-19	8.47518E-16	-9.32143E-18	1.52669E-16	-1.25630E-16
e	-1.68085E-19	1.01381E-16	-1.86059E-14	2.80819E-16	3.95034E-14	-6.60247E-15
i	8.47518E-16	-1.86059E-14	5.51886E-11	-7.91202E-12	2.96570E-12	-1.54907E-13
Ω	-9.32143E-18	2.80819E-16	-7.91202E-12	1.45942E-12	-1.65904E-12	1.20010E-13
ω	1.52669E-16	3.95034E-14	2.96570E-12	-1.65904E-12	1.81423E-11	-2.99913E-12
M	-1.25630E-16	-6.60247E-15	-1.54907E-13	1.20010E-13	-2.99913E-12	5.89472E-13

Date of computation: 2025-02-09 11:58 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

3.293

Unit

Source

[4]

Quality

Value

3,B,R

Unit

Source

[4]

Amplitude

Value

0.06

Unit

mag

Source

[4]

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]

[2]

Taxonomy (all)

Value

Unit

Source

[3]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

16.568

Unit

mag

Source

[5]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[5]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.03

Unit

Source

[6]

Diameter

Value

3331

Unit

Source

[6]

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

[7]

Satellites

Satellites

Value

Unit

Source

Satellites

Value

Binary Child 1

Unit

Source

[3]

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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	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[3]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[4]	EARN	1.) Pravec, P. et al. (2006) Icarus 181, 63-93. (Photometric survey of binary near-Earth asteroids) 2.) Petr Pravec's Ondrejov NEO Photometric Program Webpage "Prepublished Periods" 3.) Warner, B.D. (2015) MPB 42, 79-83. (A QUARTET OF NEAR-EARTH ASTEROID BINARY CANDIDATES)(2102,68348,190208,276049) 4.) Pravec, P. et al (2016) Icarus 267,267-295. (Binary asteroid population. 3. Secondary rotations and elongations) (..,..)
[5]	ESA Aegis	ESA orbit determination and impact monitoring system
[6]	EARN	1.) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 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) 3.) Nugent, C.R. et al. (2016) Astron. J. 152_63 (12pp) (NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos) (207 NEOs) 4.) Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (2011) Astrophys. J. 741, A90. See also Grav 2012b and Masiero 2012.
[7]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage 2.) Shepard, M.K. et al. (2004) I.A.U. Circ. HREF="http://www.cbat.eps.harvard.edu/iauc/08300/08397.html"> 8397. (2002 CE26) (radar detection, binary system) 3.) Shepard, M.K. et al. (2006) Icarus 184, 198-210. (Radar and infrared observations of binary near-Earth Asteroid 2002 CE26)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

8445

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.387164

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2001-12-26.63552

Unit

Source

[2]

Last Observation

Value

2025-02-08.907

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

2063 (6)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2004-08-27

Unit

Source

[3]

Last Observation

Value

2014-09-05

Unit

Source

[3]

Delay (Discarded)

Value

7 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

7 (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 276049 2002CE26 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au
EARTH	1994-09-03 14:55	< 1 s	0.1288952	0.1288952
EARTH	2004-09-05 11:00	< 1 s	0.1018877	0.1018877
EARTH	2014-09-09 04:25	< 1 s	0.1230404	0.1230404
EARTH	2024-09-11 14:06	< 1 s	0.1792780	0.1792780

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
334.98136087	242.18860186	0.09677373	MINIMUM
50.06298523	21.20079603	0.81985752	MINIMUM
30.42564196	347.80087277	0.84677650	SADDLE
10.90668832	120.58129743	1.86993990	SADDLE
189.98666170	101.68495752	2.72210882	SADDLE
173.51274300	273.12345991	4.36440494	MAXIMUM

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MOID Plots

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