Asteroids

2016EU85 help

Last update: 2025-07-15 00:51 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.957

Aphelion (Q)

2.739

Eccentricity (e)

0.482

Inclination (i)

2.6

deg

Orbit period (P)

917.7

Earth MOID

0.00610

U parameter

1.0

Next Earth close approach

Date

2055-08-27

Nominal distance (from Earth center)

0.12351

18477241

Maximum Brightness

17.4

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

19.5

mag

Diameter

300 - 800*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2016-03-10

Observatory

Pan-STARRS 1, Haleakala

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.848183

1-sigma variation

6.421E-8

Unit

Eccentricity (e)

Value

0.482113

1-sigma variation

3.326E-7

Unit

Inclination (i)

Value

2.5938

1-sigma variation

1.971E-5

Unit

Long. of Ascending Node (Ω)

Value

359.3680

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

23.5928

1-sigma variation

0.0002

Unit

Mean Anomaly (M)

Value

321.68351

1-sigma variation

0.00005

Unit

Perihelion distance

Value

0.957149

1-sigma variation

Unit

Aphelion distance

Value

2.739217

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.019493

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.545684

1-sigma variation

Unit

MOID

Value

0.006103

1-sigma variation

Unit

Orbit Period

Value

917.7319

1-sigma variation

Unit

U parameter

Value

1.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.12320E-15	1.39903E-16	1.54573E-14	1.00710E-13	-2.21900E-12	-9.18235E-13
e	1.39903E-16	1.10648E-13	5.32379E-14	-5.21418E-13	-1.21995E-12	-1.19138E-11
i	1.54573E-14	5.32379E-14	3.88507E-10	-2.72879E-9	2.71546E-9	-5.70524E-12
Ω	1.00710E-13	-5.21418E-13	-2.72879E-9	3.14154E-8	-3.14638E-8	8.47710E-11
ω	-2.21900E-12	-1.21995E-12	2.71546E-9	-3.14638E-8	3.31291E-8	-1.62787E-10
M	-9.18235E-13	-1.19138E-11	-5.70524E-12	8.47710E-11	-1.62787E-10	2.58613E-9

Date of computation: 2025-07-15 00:51 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

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

19.455

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

300 - 800*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

1875

Unit

Source

[1]

Unobserved

Value

1596

Unit

Source

[1]

Normalized RMS of residuals

Value

0.767226

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2016-01-13.553867

Unit

Source

[2]

Last Observation

Value

2021-03-02.44067

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

64 (0)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

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

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 2016EU85 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	1952-10-12 13:23	10.7	0.0435286	0.0435240	0.0000015
EARTH	1957-10-29 13:02	6.3	0.0391472	0.0391381	0.0000030
EARTH	1962-11-11 06:42	2.5	0.0345214	0.0345165	0.0000016
EARTH	1967-11-25 00:13	2.1	0.0935972	0.0935617	0.0000118
EARTH	2055-08-27 22:19	1.1	0.1235127	0.1234856	0.0000090
EARTH	2060-09-07 13:41	1.6	0.0327500	0.0327314	0.0000062
EARTH	2065-09-07 06:01	2.7	0.0348664	0.0348355	0.0000103
EARTH	2070-08-26 03:24	< 1 min	0.1393901	0.1393739	0.0000054

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
341.39358070	250.63690075	0.00610328	MINIMUM
13.90011085	304.77923584	0.03349164	MINIMUM
0.27880334	282.13006815	0.04332347	SADDLE
179.43234125	100.03293957	1.73668708	SADDLE
358.27735922	98.76235647	1.95968541	SADDLE
179.37009901	279.99804234	3.73600998	MAXIMUM

Download:

MOID Plots

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