Asteroids

410088 2007EJ help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.927

Aphelion (Q)

4.075

Eccentricity (e)

0.629

Inclination (i)

8.3

deg

Orbit period (P)

1444.6

Earth MOID

0.05725

U parameter

0.0

Next Earth close approach

Date

2105-12-29

Nominal distance (from Earth center)

0.08934

13365448

Maximum Brightness

16.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

18.1

mag

Diameter

1040

Taxonomic type

Rotation period (T)

4.557

Discovery Information

Discovery Date

2007-03-09

Observatory

Mt. Lemmon 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

2.500909

1-sigma variation

2.497E-9

Unit

Eccentricity (e)

Value

0.629337

1-sigma variation

7.856E-9

Unit

Inclination (i)

Value

8.3250

1-sigma variation

2.144E-6

Unit

Long. of Ascending Node (Ω)

Value

61.7315

1-sigma variation

2.119E-5

Unit

Arg. of Perihelion (ω)

Value

3.6442

1-sigma variation

2.033E-5

Unit

Mean Anomaly (M)

Value

276.14456

1-sigma variation

1.437E-6

Unit

Perihelion distance

Value

0.926995

1-sigma variation

Unit

Aphelion distance

Value

4.074823

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.059668

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

3.046658

1-sigma variation

Unit

MOID

Value

0.057252

1-sigma variation

Unit

Orbit Period

Value

1444.5924

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.23381E-18	-6.07225E-18	5.25190E-16	-4.58029E-14	4.54123E-14	-2.38306E-15
e	-6.07225E-18	6.17204E-17	-3.42948E-15	7.89457E-14	-6.66865E-14	-2.80804E-15
i	5.25190E-16	-3.42948E-15	4.59534E-12	4.74636E-12	-4.66173E-12	1.05354E-13
Ω	-4.58029E-14	7.89457E-14	4.74636E-12	4.49024E-10	-4.19960E-10	9.88999E-12
ω	4.54123E-14	-6.66865E-14	-4.66173E-12	-4.19960E-10	4.13509E-10	-1.43979E-11
M	-2.38306E-15	-2.80804E-15	1.05354E-13	9.88999E-12	-1.43979E-11	2.06527E-12

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

4.781

4.557

Unit

Source

[4]

[1]

Quality

Value

Unit

Source

[4]

Amplitude

Value

0.1

0.16

Unit

mag

Source

[1]

[4]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

171

Unit

Source

[1]

Spinvector B

Value

Unit

Source

[1]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[2]

Taxonomy (all)

Value

Unit

Source

[3]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

18.142

Unit

mag

Source

[5]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[5]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.174

0.1

0.121

Unit

Source

[8]

[7]

[6]

Diameter

Value

1040

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

[9]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Near-Earth Asteroid Lightcurve Analysis at the Center for Solar System Studies: 2019 January-April, B.D. Warner
[2]	EARN	1.) Michaël Marsset et al 2022 AJ 163 165
[3]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[4]	EARN	1.) Warner, B.D. (2015) MPB 42, 172-183. (NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2015 JANUARY - MARCH)(35NEAs)
[5]	ESA Aegis	ESA orbit determination and impact monitoring system
[6]	EARN	1.) Joseph R. Masiero et al 2020 Planet. Sci. J. 1 5
[7]	EARN	1.) Nugent, C.R. et al. (2015) Astrophys. J. 814_117 (13pp) (NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos)(201 NEOs)
[8]	EARN	1.) Joseph R. Masiero et al 2021 Planet. Sci. J. 2 162
[9]	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

5893

Unit

Source

[1]

Unobserved

Value

912

Unit

Source

[1]

Normalized RMS of residuals

Value

0.445244

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2007-03-09.14007

Unit

Source

[2]

Last Observation

Value

2023-04-27.19928

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1758 (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

2015-01-07

Unit

Source

[3]

Last Observation

Value

2018-11-26

Unit

Source

[3]

Delay (Discarded)

Value

2 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

2 (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 410088 2007EJ 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	2015-01-12 07:52	< 1 s	0.1771645	0.1771644	0.0000000
EARTH	2018-11-22 11:06	< 1 s	0.0616307	0.0616307	0.0000000
EARTH	2022-10-07 14:45	< 1 s	0.1976284	0.1976282	0.0000001
EARTH	2105-12-29 20:15	< 1 min	0.0893425	0.0893412	0.0000004
EARTH	2109-11-24 19:40	< 1 min	0.0580120	0.0580119	0.0000000
EARTH	2113-10-17 06:39	< 1 min	0.1195188	0.1195168	0.0000007

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
351.71962104	306.80311562	0.05726153	MINIMUM
359.26276545	142.19717964	1.93983738	SADDLE
179.85922633	142.89308406	3.06227914	SADDLE
179.81487441	322.87570788	5.06204528	MAXIMUM

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MOID Plots

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