Asteroids

2017YE5 help

Last update: 2026-06-04 23:11 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.822

Aphelion (Q)

4.821

Eccentricity (e)

0.709

Inclination (i)

6.2

deg

Orbit period (P)

1731.0

Earth MOID

0.02194

U parameter

0.6

Next Earth close approach

Date

2051-02-18

Nominal distance (from Earth center)

0.12336

18453847

Maximum Brightness

17.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

19.2

mag

Diameter

1600

Taxonomic type

Rotation period (T)

20.60

Discovery Information

Discovery Date

2017-12-21

Observatory

Oukaimeden Observatory, Marrakech

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.821460

1-sigma variation

8.799E-8

Unit

Eccentricity (e)

Value

0.708556

1-sigma variation

1.488E-8

Unit

Inclination (i)

Value

6.2158

1-sigma variation

6.914E-6

Unit

Long. of Ascending Node (Ω)

Value

103.8762

1-sigma variation

1.338E-5

Unit

Arg. of Perihelion (ω)

Value

110.8025

1-sigma variation

1.382E-5

Unit

Mean Anomaly (M)

Value

253.75319

1-sigma variation

0.00003

Unit

Perihelion distance

Value

0.822297

1-sigma variation

Unit

Aphelion distance

Value

4.820624

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.894496

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.105405

1-sigma variation

Unit

MOID

Value

0.021935

1-sigma variation

Unit

Orbit Period

Value

1731.0491

1-sigma variation

Unit

U parameter

Value

0.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.74212E-15	9.00767E-16	7.21133E-15	-2.93549E-15	1.23159E-14	-2.57715E-12
e	9.00767E-16	2.21271E-16	-9.70794E-15	4.30272E-15	-4.59344E-14	-2.98618E-13
i	7.21133E-15	-9.70794E-15	4.78069E-11	-8.26979E-11	8.04977E-11	-1.95468E-12
Ω	-2.93549E-15	4.30272E-15	-8.26979E-11	1.79023E-10	-1.76071E-10	3.81994E-13
ω	1.23159E-14	-4.59344E-14	8.04977E-11	-1.76071E-10	1.91062E-10	-4.13576E-12
M	-2.57715E-12	-2.98618E-13	-1.95468E-12	3.81994E-13	-4.13576E-12	8.57895E-10

Date of computation: 2026-06-04 23:11 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

20.60

Unit

Source

[4]

Quality

Value

2,B,R

Unit

Source

[4]

Amplitude

Value

0.33

Unit

mag

Source

[4]

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

19.189

Unit

mag

Source

[5]

Slope Parameter (G)

Value

0.15**

Unit

Source

[5]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.047

0.014

Unit

Source

[1]

[6]

Diameter

Value

1600

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

[7]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) N. G. Simion et al, Spectral properties of near-Earth objects with low-Jovian Tisserand invariant (2021)
[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. (2018) MPB 45, 366-379. (Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2018 April-June)(39 NEAs)
[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.) 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

1825

Unit

Source

[1]

Unobserved

Value

1318

Unit

Source

[1]

Normalized RMS of residuals

Value

0.505727

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2017-12-12.44084

Unit

Source

[2]

Last Observation

Value

2022-12-11.51797

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

352 (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

2018-06-21

Unit

Source

[3]

Last Observation

Value

2018-06-24

Unit

Source

[3]

Delay (Discarded)

Value

5 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

3 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

8 (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

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Max residual (arcsec):

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Computation parameters

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Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2017YE5 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1960-03-26 01:22	1.6	0.1373412	0.1373340	0.0000024
MARS	1964-11-08 23:01	< 1 min	0.0356135	0.0356100	0.0000012
EARTH	1994-02-27 21:39	< 1 min	0.1044447	0.1044354	0.0000031
4 Vesta	1998-07-13 00:12	< 1 min	0.0069700	0.0069648	0.0000017
EARTH	2018-06-21 20:52	< 1 s	0.0398650	0.0398650	0.0000000
MARS	2018-07-30 20:14	< 1 s	0.0440945	0.0440944	0.0000000
MARS	2046-10-19 21:02	< 1 min	0.0330128	0.0330079	0.0000016
EARTH	2051-02-18 00:25	< 1 min	0.1233563	0.1233445	0.0000040
EARTH	2088-07-13 08:06	< 1 min	0.1787385	0.1787320	0.0000022
EARTH	2107-05-31 05:38	1.2	0.1448305	0.1448226	0.0000026

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
25.87763744	171.46332771	0.02164468	MINIMUM
335.63667653	57.20728137	0.08955287	MINIMUM
359.93844675	112.21733127	0.20672425	SADDLE
0.95488253	294.72546853	1.81384221	SADDLE
180.12761599	293.73780212	3.83280572	SADDLE
180.22789256	113.78198431	5.82358152	MAXIMUM

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MOID Plots

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