Asteroids

138127 2000EE14 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.309

Aphelion (Q)

1.015

Eccentricity (e)

0.533

Inclination (i)

26.5

deg

Orbit period (P)

196.7

Earth MOID

0.02392

U parameter

0.2

Next Earth close approach

Date

2028-03-06

Nominal distance (from Earth center)

0.17102

25583585

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

17.1

mag

Diameter

460

Taxonomic type

Rotation period (T)

2.586

Discovery Information

Discovery Date

2000-03-04

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.661834

1-sigma variation

8.051E-10

Unit

Eccentricity (e)

Value

0.533055

1-sigma variation

6.845E-8

Unit

Inclination (i)

Value

26.4584

1-sigma variation

2.089E-5

Unit

Long. of Ascending Node (Ω)

Value

155.7454

1-sigma variation

1.012E-5

Unit

Arg. of Perihelion (ω)

Value

197.8538

1-sigma variation

1.257E-5

Unit

Mean Anomaly (M)

Value

88.53157

1-sigma variation

0.00003

Unit

Perihelion distance

Value

0.309040

1-sigma variation

Unit

Aphelion distance

Value

1.014628

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.028845

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.696417

1-sigma variation

Unit

MOID

Value

0.023919

1-sigma variation

Unit

Orbit Period

Value

196.6627

1-sigma variation

Unit

U parameter

Value

0.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.48142E-19	1.17235E-17	4.18195E-15	2.71832E-16	-1.06873E-16	-9.75955E-15
e	1.17235E-17	4.68542E-15	5.40359E-13	2.25911E-13	1.36767E-13	-6.57329E-13
i	4.18195E-15	5.40359E-13	4.36528E-10	1.65130E-10	-6.41142E-11	-8.31031E-11
Ω	2.71832E-16	2.25911E-13	1.65130E-10	1.02368E-10	-6.23768E-11	-1.92411E-12
ω	-1.06873E-16	1.36767E-13	-6.41142E-11	-6.23768E-11	1.58111E-10	-2.58805E-10
M	-9.75955E-15	-6.57329E-13	-8.31031E-11	-1.92411E-12	-2.58805E-10	8.45887E-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

2.586

Unit

Source

[2]

Quality

Value

Unit

Source

[2]

Amplitude

Value

0.26

Unit

mag

Source

[2]

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

[1]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

17.052

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.497

Unit

Source

[4]

Diameter

Value

460

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

Radar R

Unit

Source

[5]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Whiteley, R.J. (2001) PhD. Thesis, University of Hawaii. (A Compositional and Dynamical Survey of the Near-Earth Asteroids)
[2]	EARN	1.) Warner, B.D. et al. (2014) MPB 41, 157-168. (NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 JANUARY-MARCH) (1943,4055,4954,25916,35107,40267,53435, 68031,85990,86039,138127,143409,243566,275677,277570,294739, 357622,377097,1995CR,2006DP14,2009CT,2009QF31,2011BT15, 2012AU10,2013XV8,2013YZ13,2013PD21,2013XF22,2013YZ37, 2013WT44,2014CR,2014EM,2014BR8,2014CG13,2014CU13,2014EY24, 2014AY28,2014EL45,2014BR57,2014DX110)
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	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) 3.) Usui, F. et al. (2011) Pub. Astron. Soc. Japan 63, 1117-1138. (Asteroid Catalog Using AKARI: AKARI/IRC Mid-Infrared Asteroid Survey)
[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

8470

Unit

Source

[1]

Unobserved

Value

901

Unit

Source

[1]

Normalized RMS of residuals

Value

0.466732

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2000-03-04.46981

Unit

Source

[2]

Last Observation

Value

2023-05-13.294442

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

770 (7)

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

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 138127 2000EE14 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	1951-03-07 00:06	< 1 min	0.1672089	0.1672084	0.0000002
EARTH	1952-02-27 02:59	< 1 s	0.1845280	0.1845273	0.0000002
EARTH	1958-03-06 17:50	< 1 min	0.1670056	0.1670050	0.0000002
EARTH	1959-02-26 22:12	< 1 min	0.1848171	0.1848163	0.0000003
EARTH	1965-03-06 11:53	< 1 min	0.1664709	0.1664703	0.0000002
EARTH	1966-02-26 17:38	< 1 min	0.1858251	0.1858242	0.0000003
EARTH	1972-03-06 04:58	< 1 min	0.1657737	0.1657730	0.0000002
EARTH	1973-02-26 12:38	< 1 min	0.1869363	0.1869355	0.0000003
EARTH	1979-03-06 21:53	< 1 min	0.1648387	0.1648381	0.0000002
EARTH	1980-02-27 08:34	< 1 s	0.1881161	0.1881152	0.0000003
EARTH	1986-03-06 15:41	< 1 min	0.1641820	0.1641814	0.0000002
EARTH	1987-02-27 03:42	< 1 s	0.1892640	0.1892633	0.0000003
EARTH	1993-03-06 09:07	< 1 s	0.1637470	0.1637465	0.0000002
EARTH	1994-02-26 23:20	< 1 s	0.1897439	0.1897433	0.0000002
EARTH	2000-03-06 04:29	< 1 s	0.1638394	0.1638390	0.0000001
EARTH	2001-02-26 18:02	< 1 s	0.1897609	0.1897604	0.0000002
EARTH	2007-03-07 00:15	< 1 s	0.1646393	0.1646389	0.0000001
EARTH	2008-02-27 11:58	< 1 s	0.1886119	0.1886115	0.0000002
EARTH	2014-03-06 21:39	< 1 s	0.1659388	0.1659384	0.0000001
EARTH	2015-02-27 05:55	< 1 s	0.1863978	0.1863974	0.0000001
EARTH	2021-03-06 20:32	< 1 s	0.1681005	0.1681001	0.0000001
EARTH	2022-02-26 22:54	< 1 s	0.1833360	0.1833355	0.0000001
EARTH	2028-03-06 20:42	< 1 min	0.1710157	0.1710153	0.0000001
EARTH	2029-02-26 16:00	< 1 s	0.1791598	0.1791593	0.0000002
EARTH	2035-03-07 22:28	< 1 min	0.1744225	0.1744220	0.0000002
EARTH	2036-02-27 08:07	< 1 s	0.1742951	0.1742944	0.0000002
EARTH	2042-03-08 00:25	< 1 min	0.1784295	0.1784290	0.0000002
EARTH	2043-02-27 00:16	< 1 s	0.1688331	0.1688324	0.0000002
EARTH	2049-03-08 03:37	< 1 min	0.1826457	0.1826452	0.0000002
EARTH	2050-02-26 16:11	< 1 s	0.1625636	0.1625627	0.0000003
EARTH	2056-03-08 06:46	< 1 min	0.1870866	0.1870859	0.0000002
EARTH	2057-02-26 08:05	< 1 s	0.1562577	0.1562567	0.0000003
EARTH	2063-03-09 10:28	< 1 min	0.1917257	0.1917251	0.0000002
EARTH	2064-02-27 00:21	< 1 s	0.1498562	0.1498552	0.0000003
EARTH	2070-03-09 13:50	< 1 min	0.1960154	0.1960147	0.0000002
EARTH	2071-02-26 16:39	< 1 min	0.1436962	0.1436953	0.0000003
EARTH	2078-02-26 09:36	< 1 min	0.1384448	0.1384439	0.0000003
EARTH	2085-02-26 02:28	< 1 min	0.1336042	0.1336033	0.0000003
EARTH	2092-02-26 20:02	< 1 min	0.1300049	0.1300041	0.0000003
EARTH	2099-02-26 14:08	< 1 s	0.1276647	0.1276640	0.0000002
EARTH	2106-02-27 08:44	< 1 s	0.1264632	0.1264626	0.0000002
EARTH	2113-02-27 03:59	< 1 s	0.1272523	0.1272518	0.0000002
EARTH	2120-02-27 23:10	< 1 s	0.1292209	0.1292204	0.0000002

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
151.10293910	54.22620172	0.02349294	MINIMUM
7.98891391	266.07906020	0.70184832	SADDLE
359.85120883	72.24724001	1.30138484	SADDLE
176.37549573	246.91279693	2.01631688	MAXIMUM

Download:

MOID Plots

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