Asteroids

138175 2000EE104 help

Last update: 2025-11-04 13:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.709

Aphelion (Q)

1.298

Eccentricity (e)

0.293

Inclination (i)

5.2

deg

Orbit period (P)

367.2

Earth MOID

0.00936

U parameter

0.0

A₂

-91.5

10^-15au/days²

Next Earth close approach

Date

2025-11-06

Nominal distance (from Earth center)

0.12222

18284491

Maximum Brightness

18.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

20.5

mag

Diameter

210 - 500*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2000-03-11

Observatory

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.003596

1-sigma variation

1.453E-9

Unit

Eccentricity (e)

Value

0.293294

1-sigma variation

7.944E-8

Unit

Inclination (i)

Value

5.2341

1-sigma variation

1.275E-6

Unit

Long. of Ascending Node (Ω)

Value

25.4683

1-sigma variation

1.267E-5

Unit

Arg. of Perihelion (ω)

Value

280.8184

1-sigma variation

1.187E-5

Unit

Mean Anomaly (M)

Value

84.76333

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.709247

1-sigma variation

Unit

Aphelion distance

Value

1.297945

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.127020

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.033996

1-sigma variation

Unit

MOID

Value

0.009364

1-sigma variation

Unit

Orbit Period

Value

367.2290

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

A₂

Value

-91.48114

1-sigma variation

4.27737

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	2.11143E-18	4.62615E-17	4.55966E-16	-2.46814E-15	4.71715E-16	-4.90963E-15	6.75778E-10
e	4.62615E-17	6.31049E-15	5.94306E-14	-1.61462E-14	5.32811E-14	-7.50014E-13	-2.93576E-7
i	4.55966E-16	5.94306E-14	1.62473E-12	2.40360E-12	-2.50571E-12	-6.05634E-12	-2.86474E-6
Ω	-2.46814E-15	-1.61462E-14	2.40360E-12	1.60653E-10	-1.43587E-10	-2.51436E-11	-1.97292E-6
ω	4.71715E-16	5.32811E-14	-2.50571E-12	-1.43587E-10	1.40948E-10	1.10569E-12	-2.78805E-6
M	-4.90963E-15	-7.50014E-13	-6.05634E-12	-2.51436E-11	1.10569E-12	1.24545E-10	3.47732E-5
A₂	6.75778E-10	-2.93576E-7	-2.86474E-6	-1.97292E-6	-2.78805E-6	3.47732E-5	1.82959E1

Date of computation: 2025-11-04 13:15 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

20.477

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

210 - 500*

Unit

Source

[2]

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

[3]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude
[3]	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

9705

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.589698

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1999-04-09.2258

Unit

Source

[2]

Last Observation

Value

2025-11-03.468524

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1460 (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

2000-04-09

Unit

Source

[3]

Last Observation

Value

2000-04-10

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

3 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

3 (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 138175 2000EE104 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
VENUS	1965-03-07 01:53	< 1 min	0.0228519	0.0228494	0.0000008
VENUS	1979-04-28 23:19	< 1 min	0.0263682	0.0263670	0.0000004
EARTH	1994-04-03 17:45	< 1 s	0.1919564	0.1919558	0.0000002
EARTH	1995-04-06 02:06	< 1 s	0.1405383	0.1405377	0.0000002
EARTH	1996-04-07 06:44	< 1 s	0.0913294	0.0913289	0.0000002
EARTH	1997-04-09 06:32	< 1 s	0.0462139	0.0462135	0.0000001
EARTH	1998-04-10 21:07	< 1 s	0.0114637	0.0114635	0.0000001
EARTH	1999-04-11 15:10	< 1 s	0.0121257	0.0121256	0.0000000
EARTH	2000-04-11 19:57	< 1 s	0.0427234	0.0427233	0.0000000
EARTH	2001-04-12 20:36	< 1 s	0.0821507	0.0821505	0.0000000
EARTH	2002-04-12 04:17	< 1 s	0.1259612	0.1259610	0.0000001
EARTH	2003-04-04 08:00	< 1 s	0.1701387	0.1701385	0.0000001
VENUS	2004-06-20 21:18	< 1 min	0.0499469	0.0499468	0.0000000
VENUS	2015-07-29 18:00	< 1 min	0.0423608	0.0423607	0.0000000
EARTH	2023-10-15 07:10	< 1 min	0.1904281	0.1904280	0.0000000
EARTH	2023-11-22 00:50	< 1 min	0.1906278	0.1906277	0.0000000
EARTH	2024-11-06 07:26	< 1 s	0.1565266	0.1565264	0.0000001
EARTH	2025-11-06 14:43	< 1 s	0.1222243	0.1222241	0.0000001
EARTH	2026-11-08 08:20	< 1 s	0.0913965	0.0913963	0.0000001
EARTH	2027-11-09 12:18	< 1 s	0.0694739	0.0694738	0.0000001
EARTH	2028-11-09 15:25	< 1 s	0.0523855	0.0523853	0.0000001
EARTH	2029-11-10 15:18	< 1 s	0.0416177	0.0416176	0.0000000
EARTH	2030-11-11 12:47	< 1 s	0.0375164	0.0375163	0.0000000
EARTH	2031-11-12 12:04	< 1 min	0.0406018	0.0406015	0.0000001
EARTH	2032-11-12 16:51	< 1 min	0.0535711	0.0535704	0.0000002
EARTH	2033-11-14 03:20	< 1 min	0.0762906	0.0762895	0.0000004
EARTH	2034-11-15 17:09	< 1 min	0.1056044	0.1056030	0.0000005
EARTH	2035-11-17 14:50	< 1 min	0.1425304	0.1425290	0.0000005
EARTH	2036-11-18 13:51	< 1 min	0.1822104	0.1822089	0.0000005

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
270.59095959	97.53140378	0.00936358	MINIMUM
85.41977857	308.30873921	0.03718270	MINIMUM
357.52440258	202.19986378	0.31685667	SADDLE
178.25522712	23.42744442	0.32900976	SADDLE
358.10937878	22.99491418	1.69258738	SADDLE
179.08536736	204.02639956	2.31222412	MAXIMUM

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MOID Plots

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