Asteroids

265482 2005EE help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.759

Aphelion (Q)

1.498

Eccentricity (e)

0.328

Inclination (i)

6.2

deg

Orbit period (P)

437.9

Earth MOID

0.01860

U parameter

0.0

A₂

89.0

10^-15au/days²

Next Earth close approach

Date

2029-01-10

Nominal distance (from Earth center)

0.10833

16205738

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

21.2

mag

Diameter

150 - 300*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2005-03-01

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

1.128585

1-sigma variation

3.449E-9

Unit

Eccentricity (e)

Value

0.327726

1-sigma variation

5.826E-8

Unit

Inclination (i)

Value

6.1713

1-sigma variation

3.709E-6

Unit

Long. of Ascending Node (Ω)

Value

110.7744

1-sigma variation

1.349E-5

Unit

Arg. of Perihelion (ω)

Value

284.7533

1-sigma variation

1.626E-5

Unit

Mean Anomaly (M)

Value

183.28447

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.758719

1-sigma variation

Unit

Aphelion distance

Value

1.498452

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.054119

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.081350

1-sigma variation

Unit

MOID

Value

0.018596

1-sigma variation

Unit

Orbit Period

Value

437.9253

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

A₂

Value

88.98371

1-sigma variation

8.78255

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	1.18962E-17	-5.36402E-17	-2.05017E-15	-2.58112E-15	1.09806E-14	-2.76512E-14	2.87741E-8
e	-5.36402E-17	3.39397E-15	5.26994E-14	1.23068E-13	-5.15716E-13	8.62799E-14	-1.36459E-7
i	-2.05017E-15	5.26994E-14	1.37599E-11	3.93944E-11	-4.61475E-11	3.93193E-12	-6.12026E-6
Ω	-2.58112E-15	1.23068E-13	3.93944E-11	1.81934E-10	-1.96761E-10	4.05784E-12	-9.30289E-6
ω	1.09806E-14	-5.15716E-13	-4.61475E-11	-1.96761E-10	2.64274E-10	-2.49997E-11	2.98206E-5
M	-2.76512E-14	8.62799E-14	3.93193E-12	4.05784E-12	-2.49997E-11	7.66040E-11	-5.91088E-5
A₂	2.87741E-8	-1.36459E-7	-6.12026E-6	-9.30289E-6	2.98206E-5	-5.91088E-5	7.71332E1

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

[1]

[2]

Taxonomy (all)

Value

Unit

Source

[3]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

21.225

Unit

mag

Source

[4]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[4]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[5]

Diameter

Value

150 - 300*

Unit

Source

[5]

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

[6]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Michaël Marsset et al 2022 AJ 163 165
[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]	ESA Aegis	ESA orbit determination and impact monitoring system
[5]	Estimation	Estimated from absolute magnitude
[6]	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

6907

Unit

Source

[1]

Unobserved

Value

933

Unit

Source

[1]

Normalized RMS of residuals

Value

0.439596

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2004-05-14.3192

Unit

Source

[2]

Last Observation

Value

2023-04-12.275373

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

458 (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

2017-01-17

Unit

Source

[3]

Last Observation

Value

2017-01-18

Unit

Source

[3]

Delay (Discarded)

Value

2 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

3 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

5 (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 265482 2005EE 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	1950-07-26 18:16	< 1 min	0.0256091	0.0256080	0.0000004
EARTH	1956-07-29 06:34	< 1 min	0.0663013	0.0662841	0.0000057
EARTH	1962-08-07 22:26	1.4	0.1475033	0.1474819	0.0000071
EARTH	1998-12-08 09:58	< 1 min	0.1991185	0.1991177	0.0000003
EARTH	2004-12-28 12:20	< 1 min	0.1522157	0.1522151	0.0000002
EARTH	2011-01-11 21:47	< 1 min	0.0997623	0.0997621	0.0000001
EARTH	2017-01-15 06:23	< 1 s	0.0684279	0.0684279	0.0000000
EARTH	2023-01-14 21:12	< 1 s	0.0775026	0.0775023	0.0000001
EARTH	2029-01-10 05:37	< 1 min	0.1083287	0.1083279	0.0000003
EARTH	2034-12-28 21:02	< 1 min	0.1534060	0.1534047	0.0000004
EARTH	2040-12-11 09:26	< 1 min	0.1929894	0.1929883	0.0000004
EARTH	2082-09-03 13:55	< 1 min	0.1980803	0.1980786	0.0000006
EARTH	2088-08-16 01:33	< 1 min	0.1683510	0.1683494	0.0000005
EARTH	2094-08-05 12:36	< 1 min	0.1389937	0.1389927	0.0000003
EARTH	2100-08-03 09:50	< 1 min	0.1196922	0.1196916	0.0000002
EARTH	2106-08-04 05:58	< 1 min	0.1213245	0.1213238	0.0000002
EARTH	2112-08-08 06:42	< 1 min	0.1474584	0.1474575	0.0000003
EARTH	2118-08-27 02:21	< 1 min	0.1825730	0.1825721	0.0000003

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
66.02008839	17.74804827	0.01862668	MINIMUM
286.68534149	200.99153543	0.02428425	MINIMUM
355.29349004	287.91106911	0.25263434	SADDLE
177.49543466	111.00356185	0.50887724	SADDLE
356.42572597	109.51115525	1.76214656	SADDLE
178.50759959	291.73771056	2.48881340	MAXIMUM

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MOID Plots

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