Asteroids

2017AE3 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.664

Aphelion (Q)

3.025

Eccentricity (e)

0.640

Inclination (i)

9.5

deg

Orbit period (P)

915.2

Earth MOID

0.02154

U parameter

0.0

Next Earth close approach

Date

2027-01-04

Nominal distance (from Earth center)

0.11967

17903036

Maximum Brightness

20.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

21.8

mag

Diameter

110 - 260*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2017-01-02

Observatory

ATLAS-HKO, 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.844832

1-sigma variation

2.962E-9

Unit

Eccentricity (e)

Value

0.639931

1-sigma variation

4.050E-7

Unit

Inclination (i)

Value

9.4957

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

269.3260

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

107.6491

1-sigma variation

0.0002

Unit

Mean Anomaly (M)

Value

295.46368

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.664267

1-sigma variation

Unit

Aphelion distance

Value

3.025397

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.335005

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.071567

1-sigma variation

Unit

MOID

Value

0.021545

1-sigma variation

Unit

Orbit Period

Value

915.2373

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.77490E-18	-1.96535E-16	8.69107E-14	1.21361E-13	-8.54177E-14	-3.72924E-15
e	-1.96535E-16	1.64032E-13	1.56493E-11	3.60979E-11	-6.43286E-11	-8.42655E-13
i	8.69107E-14	1.56493E-11	2.94798E-9	5.82065E-9	-8.40247E-9	-1.60902E-10
Ω	1.21361E-13	3.60979E-11	5.82065E-9	1.27845E-8	-1.83743E-8	-4.40382E-10
ω	-8.54177E-14	-6.43286E-11	-8.40247E-9	-1.83743E-8	2.90495E-8	5.19074E-10
M	-3.72924E-15	-8.42655E-13	-1.60902E-10	-4.40382E-10	5.19074E-10	2.61072E-11

Date of computation: 2026-03-17 23:26 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

[1]

Quality

Value

Unit

Source

[-]

Amplitude

Value

1.13

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

21.833

Unit

mag

Source

[2]

Slope Parameter (G)

Value

0.15**

Unit

Source

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[3]

Diameter

Value

110 - 260*

Unit

Source

[3]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

0.68

Unit

V-R

Source

[1]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Erasmus, N.; Mommert, M.; Trilling, D.E.; Sicafoose, A.A.; et al. (2017) Astron. J. 154, A162.
[2]	ESA Aegis	ESA orbit determination and impact monitoring system
[3]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

3673

Unit

Source

[1]

Unobserved

Value

1519

Unit

Source

[1]

Normalized RMS of residuals

Value

0.373446

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2012-01-05.457754

Unit

Source

[2]

Last Observation

Value

2022-01-25.278396

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

183 (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

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 2017AE3 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	2001-12-18 07:35	< 1 min	0.1314196	0.1314174	0.0000007
EARTH	2006-12-24 19:16	< 1 min	0.0607607	0.0607593	0.0000005
EARTH	2011-12-28 05:15	< 1 min	0.0246774	0.0246771	0.0000001
EARTH	2016-12-28 13:47	< 1 min	0.0218203	0.0218199	0.0000001
EARTH	2021-12-31 08:29	< 1 min	0.0523687	0.0523682	0.0000002
EARTH	2027-01-04 11:55	< 1 min	0.1196744	0.1196739	0.0000002
EARTH	2109-07-07 01:56	< 1 min	0.1821470	0.1821413	0.0000019
EARTH	2114-07-11 16:43	< 1 min	0.1122243	0.1122197	0.0000015
EARTH	2119-07-15 23:52	< 1 min	0.0761133	0.0761116	0.0000006
EARTH	2124-07-19 12:08	< 1 min	0.0962777	0.0962756	0.0000007

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
42.72629067	355.37546269	0.02162862	MINIMUM
313.48655059	190.51492841	0.06652126	MINIMUM
356.94544580	270.82401339	0.36023621	SADDLE
357.92585329	92.94117004	1.66099674	SADDLE
179.34713307	95.26787515	2.04145202	SADDLE
179.74238542	275.45637477	4.01488952	MAXIMUM

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MOID Plots

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