Asteroids

187026 2005EK70 help

Last update: 2025-09-24 14:14 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.830

Aphelion (Q)

1.090

Eccentricity (e)

0.135

Inclination (i)

30.0

deg

Orbit period (P)

343.3

Earth MOID

0.09559

U parameter

0.0

Next Earth close approach

Date

2039-08-16

Nominal distance (from Earth center)

0.19656

29404227

Maximum Brightness

22.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

17.4

mag

Diameter

900 - 1900*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2005-03-08

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

0.959605

1-sigma variation

2.716E-10

Unit

Eccentricity (e)

Value

0.135463

1-sigma variation

2.857E-8

Unit

Inclination (i)

Value

30.0010

1-sigma variation

9.022E-6

Unit

Long. of Ascending Node (Ω)

Value

329.7762

1-sigma variation

2.508E-6

Unit

Arg. of Perihelion (ω)

Value

347.0351

1-sigma variation

2.029E-5

Unit

Mean Anomaly (M)

Value

148.25400

1-sigma variation

0.00003

Unit

Perihelion distance

Value

0.829614

1-sigma variation

Unit

Aphelion distance

Value

1.089596

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.180015

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.096049

1-sigma variation

Unit

MOID

Value

0.095585

1-sigma variation

Unit

Orbit Period

Value

343.3500

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.37403E-20	4.79627E-18	4.08996E-16	-1.48356E-16	-2.42277E-16	2.48392E-16
e	4.79627E-18	8.16082E-16	9.01993E-14	2.88244E-15	-4.64336E-14	7.42763E-14
i	4.08996E-16	9.01993E-14	8.13912E-11	-2.89036E-12	2.95853E-11	-3.26614E-11
Ω	-1.48356E-16	2.88244E-15	-2.89036E-12	6.28888E-12	-1.26011E-11	9.62677E-12
ω	-2.42277E-16	-4.64336E-14	2.95853E-11	-1.26011E-11	4.11843E-10	-5.14423E-10
M	2.48392E-16	7.42763E-14	-3.26614E-11	9.62677E-12	-5.14423E-10	6.52174E-10

Date of computation: 2025-09-24 14:14 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

[1]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

17.429

Unit

mag

Source

[2]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[3]

Diameter

Value

900 - 1900*

Unit

Source

[3]

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

[4]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Somers, J.M. et al. (2010) DPS 42, 1316. (abstract) (Optical Characterization Of Planetary Radar Targets, Low-deltaV, And Potentially Hazardous Asteroids: Results From 2009-2010)
[2]	ESA Aegis	ESA orbit determination and impact monitoring system
[3]	Estimation	Estimated from absolute magnitude
[4]	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

7484

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.44613

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2005-03-08.1163

Unit

Source

[2]

Last Observation

Value

2025-09-02.624861

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1519 (9)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2008-02-24

Unit

Source

[3]

Last Observation

Value

2008-02-24

Unit

Source

[3]

Delay (Discarded)

Value

1 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

1 (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 187026 2005EK70 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	1961-02-17 09:51	< 1 s	0.1437808	0.1437806	0.0000001
EARTH	1976-08-25 19:25	< 1 min	0.1790209	0.1790208	0.0000000
EARTH	1977-02-19 06:11	< 1 s	0.0964734	0.0964734	0.0000000
EARTH	1992-08-15 13:49	< 1 min	0.1984632	0.1984630	0.0000001
EARTH	1993-02-20 18:09	< 1 s	0.1356034	0.1356032	0.0000001
EARTH	2008-02-18 04:29	< 1 s	0.1492732	0.1492732	0.0000000
EARTH	2023-08-27 03:43	< 1 min	0.1795477	0.1795476	0.0000000
EARTH	2024-02-20 02:27	< 1 s	0.0968756	0.0968755	0.0000000
EARTH	2039-08-16 23:07	< 1 min	0.1965551	0.1965549	0.0000001
EARTH	2040-02-21 14:22	< 1 s	0.1329889	0.1329888	0.0000000
EARTH	2055-02-18 02:08	< 1 s	0.1500901	0.1500898	0.0000001
EARTH	2070-08-27 01:40	< 1 min	0.1797343	0.1797341	0.0000000
EARTH	2071-02-20 00:50	< 1 s	0.0969977	0.0969976	0.0000000
EARTH	2086-08-16 15:26	< 1 min	0.1975287	0.1975285	0.0000001
EARTH	2087-02-21 13:30	< 1 s	0.1348411	0.1348408	0.0000001
EARTH	2102-02-19 01:55	< 1 s	0.1457124	0.1457120	0.0000002
EARTH	2117-08-27 09:17	< 1 min	0.1793655	0.1793654	0.0000000
EARTH	2118-02-21 00:43	< 1 s	0.0967878	0.0967877	0.0000000

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
196.04953515	48.70643548	0.09558515	MINIMUM
12.91198679	230.97231008	0.17946319	MINIMUM
98.35698184	322.66037566	0.50810725	SADDLE
290.17184324	137.29405928	0.50820166	SADDLE
326.72941054	1.82449472	1.79850350	SADDLE
184.27556610	219.85968249	2.10156332	MAXIMUM

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MOID Plots

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