Asteroids

418094 2007WV4 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.831

Aphelion (Q)

2.141

Eccentricity (e)

0.441

Inclination (i)

38.3

deg

Orbit period (P)

661.9

Earth MOID

0.01897

U parameter

0.0

Next Earth close approach

Date

2046-05-30

Nominal distance (from Earth center)

0.03186

4766114

Maximum Brightness

15.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

19.6

mag

Diameter

690

Taxonomic type

Rotation period (T)

9.929

Discovery Information

Discovery Date

2007-11-19

Observatory

Steward Observatory, Kitt Peak-Spacewatch

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

1.486310

1-sigma variation

5.793E-9

Unit

Eccentricity (e)

Value

0.440767

1-sigma variation

2.260E-8

Unit

Inclination (i)

Value

38.3423

1-sigma variation

1.630E-6

Unit

Long. of Ascending Node (Ω)

Value

249.8568

1-sigma variation

6.103E-7

Unit

Arg. of Perihelion (ω)

Value

297.6446

1-sigma variation

5.020E-6

Unit

Mean Anomaly (M)

Value

268.04149

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.831194

1-sigma variation

Unit

Aphelion distance

Value

2.141426

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.021281

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.519361

1-sigma variation

Unit

MOID

Value

0.018974

1-sigma variation

Unit

Orbit Period

Value

661.8544

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.35547E-17	6.21356E-17	-2.92358E-15	-1.08233E-15	-1.48816E-14	-5.46075E-14
e	6.21356E-17	5.10797E-16	-1.55734E-14	2.98220E-15	-1.05506E-13	-8.55731E-14
i	-2.92358E-15	-1.55734E-14	2.65755E-12	2.82749E-13	3.89876E-12	4.13602E-12
Ω	-1.08233E-15	2.98220E-15	2.82749E-13	3.72499E-13	4.09442E-13	1.64454E-12
ω	-1.48816E-14	-1.05506E-13	3.89876E-12	4.09442E-13	2.52013E-11	2.00528E-11
M	-5.46075E-14	-8.55731E-14	4.13602E-12	1.64454E-12	2.00528E-11	8.98559E-11

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

9.929

Unit

Source

[1]

Quality

Value

Unit

Source

[1]

Amplitude

Value

0.65

Unit

mag

Source

[1]

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

19.561

Unit

mag

Source

[2]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.042

0.053

Unit

Source

[5]

[4]

[3]

Diameter

Value

690

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

[6]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Warner, B.D. (2017) Minor Planet Bul. 44, 335-344.
[2]	ESA Aegis	ESA orbit determination and impact monitoring system
[3]	EARN	1.) Joseph R. Masiero et al 2020 Planet. Sci. J. 1 5
[4]	EARN	1.) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs)
[5]	EARN	1.) Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (2011) Astrophys. J. 741, A90. See also Grav 2012b and Masiero 2012.
[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

4026

Unit

Source

[1]

Unobserved

Value

2537

Unit

Source

[1]

Normalized RMS of residuals

Value

0.51664

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2007-11-19.39373

Unit

Source

[2]

Last Observation

Value

2018-11-27.260999

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

371 (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

2017-05-29

Unit

Source

[3]

Last Observation

Value

2017-06-05

Unit

Source

[3]

Delay (Discarded)

Value

7 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

3 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

10 (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 418094 2007WV4 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	1950-06-02 09:48	< 1 min	0.0296410	0.0296376	0.0000011
EARTH	1979-05-25 23:20	< 1 min	0.1320182	0.1320146	0.0000012
EARTH	1988-06-09 23:54	< 1 min	0.1888595	0.1888566	0.0000010
EARTH	2017-06-01 12:08	< 1 s	0.0204542	0.0204542	0.0000000
EARTH	2046-05-30 22:50	< 1 min	0.0318595	0.0318569	0.0000009
EARTH	2084-06-05 18:06	< 1 min	0.1034659	0.1034635	0.0000008
EARTH	2113-05-30 07:22	< 1 min	0.0572492	0.0572444	0.0000016

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
41.85115553	147.69434644	0.01745494	MINIMUM
290.89019098	345.33226891	0.37291342	MINIMUM
342.04771580	55.46831220	0.62051109	SADDLE
167.11719446	262.58599855	1.43649430	SADDLE
353.27972941	257.41441966	1.74755521	SADDLE
189.00756777	98.04866835	3.03483839	MAXIMUM

Download:

MOID Plots

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