Asteroids

153814 2001WN5 help

Last update: 2024-04-25 14:31 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.913

Aphelion (Q)

2.511

Eccentricity (e)

0.467

Inclination (i)

1.9

deg

Orbit period (P)

818.1

Earth MOID

0.00159

U parameter

0.0

Next Earth close approach

Date

2028-06-26

Nominal distance (from Earth center)

0.00166

248714

Maximum Brightness

6.9

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

18.3

mag

Diameter

940

Taxonomic type

Rotation period (T)

4.259

Discovery Information

Discovery Date

2001-11-20

Observatory

Lowell Observatory-LONEOS

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.711823

1-sigma variation

1.245E-9

Unit

Eccentricity (e)

Value

0.466865

1-sigma variation

6.942E-9

Unit

Inclination (i)

Value

1.9187

1-sigma variation

1.685E-6

Unit

Long. of Ascending Node (Ω)

Value

277.3540

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

44.6794

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

22.46327

1-sigma variation

1.150E-6

Unit

Perihelion distance

Value

0.912633

1-sigma variation

Unit

Aphelion distance

Value

2.511012

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.012093

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.023376

1-sigma variation

Unit

MOID

Value

0.001586

1-sigma variation

Unit

Orbit Period

Value

818.0627

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.55093E-18	-2.55930E-18	8.80568E-16	-3.14648E-14	3.00560E-14	-6.03133E-16
e	-2.55930E-18	4.81944E-17	-8.96460E-15	4.49979E-13	-4.61377E-13	6.19016E-15
i	8.80568E-16	-8.96460E-15	2.84089E-12	-4.30075E-11	4.52047E-11	-1.46595E-12
Ω	-3.14648E-14	4.49979E-13	-4.30075E-11	6.46962E-9	-6.52840E-9	3.95305E-11
ω	3.00560E-14	-4.61377E-13	4.52047E-11	-6.52840E-9	6.59359E-9	-4.11463E-11
M	-6.03133E-16	6.19016E-15	-1.46595E-12	3.95305E-11	-4.11463E-11	1.32186E-12

Date of computation: 2024-04-23 10:08 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

4.259

4.253

Unit

Source

[1]

[2]

Quality

Value

Unit

Source

[-]

Amplitude

Value

0.19

0.63

Unit

mag

Source

[1]

[2]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[1]

Spinvector B

Value

Unit

Source

[1]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

K/L/Sq

Unit

Source

[3]

[4]

Taxonomy (all)

Value

K/L/Sq

Unit

Source

[5]

[4]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

18.334

Unit

mag

Source

[6]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[6]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.106

0.097

Unit

Source

[7]

[8]

Diameter

Value

940

Unit

Source

[7]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Visual S

Radar R

Unit

Source

[4]

[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 September-2020 January, B.D. Warner
[2]	EARN	1.) Lowell Observatory Near-Earth Asteroid Photometric Survey (NEAPS): Paper 4. Skiff, Brian A et al.
[3]	EARN	1.) Michaël Marsset et al 2022 AJ 163 165
[4]	EARN	1.) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical characterization of Warm Spitzer-observed near-Earth objects)
[5]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[6]	ESA ODIM	ESA orbit determination and impact monitoring system
[7]	EARN	1.) Joseph R. Masiero et al 2021 Planet. Sci. J. 2 162
[8]	EARN	1.) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs) 2.) Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (2011) Astrophys. J. 741, A90. See also Grav 2012b and Masiero 2012.
[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

9864

Unit

Source

[1]

Unobserved

Value

438

Unit

Source

[1]

Normalized RMS of residuals

Value

0.515559

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1996-02-10.39593

Unit

Source

[2]

Last Observation

Value

2023-02-12.397485

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1005 (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

2010-10-29

Unit

Source

[3]

Last Observation

Value

2019-08-24

Unit

Source

[3]

Delay (Discarded)

Value

4 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

4 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	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 153814 2001WN5 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1963-09-30 11:51	< 1 s	0.0352536	0.0352534	0.0000000
EARTH	1972-07-28 12:50	< 1 min	0.0950108	0.0950108	0.0000000
EARTH	1981-06-16 14:42	< 1 min	0.0834207	0.0834202	0.0000002
EARTH	2010-10-10 06:60	< 1 s	0.1072803	0.1072801	0.0000000
EARTH	2019-08-27 07:14	< 1 s	0.0975689	0.0975689	0.0000000
MARS	2026-08-27 04:44	< 1 s	0.0371838	0.0371836	0.0000001
EARTH	2028-06-26 05:22	< 1 s	0.0016626	0.0016624	0.0000001
MARS	2039-10-29 20:39	6.0	0.0143894	0.0142895	0.0000338
EARTH	2052-08-02 11:28	175.8	0.1017442	0.1015024	0.0000806
EARTH	2076-09-21 01:17	192.4	0.0636478	0.0626358	0.0003396
EARTH	2087-06-12 04:20	55.8	0.1625639	0.1607032	0.0006202
EARTH	2100-10-03 12:52	78.7	0.0422273	0.0420544	0.0000629
EARTH	2111-06-20 07:23	154.5	0.0740377	0.0704483	0.0011965
EARTH	2124-10-09 08:28	64.5	0.0671886	0.0661563	0.0003458

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