Asteroids

2026AE4 help

Last update: 2026-01-18 13:01 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.938

Aphelion (Q)

2.413

Eccentricity (e)

0.440

Inclination (i)

2.6

deg

Orbit period (P)

792.1

Earth MOID

0.00095

U parameter

6.5

Next Earth close approach

Date

2028-04-12

Nominal distance (from Earth center)

0.10861

16247423

Maximum Brightness

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

29.2

mag

Diameter

4 - 8*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-15

Observatory

Mt. Lemmon Survey

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

1.675439

1-sigma variation

0.000195

Unit

Eccentricity (e)

Value

0.439985

1-sigma variation

0.000069

Unit

Inclination (i)

Value

2.5877

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

118.0330

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

30.7437

1-sigma variation

0.0006

Unit

Mean Anomaly (M)

Value

322.46412

1-sigma variation

0.00674

Unit

Perihelion distance

Value

0.938270

1-sigma variation

Unit

Aphelion distance

Value

2.412607

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.003720

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.154520

1-sigma variation

Unit

MOID

Value

0.000949

1-sigma variation

Unit

Orbit Period

Value

792.1203

1-sigma variation

Unit

U parameter

Value

6.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.81643E-8	1.34889E-8	6.41572E-8	1.17759E-9	9.03149E-8	1.31685E-6
e	1.34889E-8	4.76793E-9	2.27275E-8	3.18987E-10	3.21877E-8	4.65379E-7
i	6.41572E-8	2.27275E-8	1.15972E-7	-1.31902E-8	1.91896E-7	2.20604E-6
Ω	1.17759E-9	3.18987E-10	-1.31902E-8	2.85932E-8	-7.26749E-8	5.50918E-8
ω	9.03149E-8	3.21877E-8	1.91896E-7	-7.26749E-8	4.18346E-7	3.07640E-6
M	1.31685E-6	4.65379E-7	2.20604E-6	5.50918E-8	3.07640E-6	4.54451E-5

Date of computation: 2026-01-18 13:01 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

29.244

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

4 - 8*

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

[-]

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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

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.810012

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-15.215194

Unit

Source

[2]

Last Observation

Value

2026-01-16.278711

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

44 (2)

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 100 points and a final date not exceeding 2080/07/22 14:12.

Close Approaches for 2026AE4 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	1950-01-21 03:08	> 1 d	0.0169085	0.0024771	0.0175139
EARTH	1963-03-14 22:38	> 1 d	0.0464095	0.0421214	0.0041980
EARTH	1976-04-07 18:05	> 1 d	0.1056967	0.0583661	0.0173656
EARTH	2013-01-05 16:58	> 1 d	0.0723598	0.0304868	0.0139753
EARTH	2026-01-17 01:51	< 1 min	0.0013737	0.0013730	0.0000002
EARTH	2028-04-12 04:06	302.3	0.1088353	0.1029986	0.0019637
EARTH	2063-02-28 13:03	> 1 w	0.0644178	0.0644093	0.0000850
EARTH	2098-01-12 12:20	> 1 d	0.0299123	0.0007204	0.0123648
EARTH	2100-04-05 13:13	373.8	0.0599826	0.0573551	0.0009710

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
339.73177197	15.22379618	0.00094936	MINIMUM
22.14837261	81.31089318	0.04130199	MINIMUM
4.00146754	53.01705501	0.05684516	SADDLE
180.70839001	228.19313764	1.40063362	SADDLE
1.71226541	229.37418564	1.95039505	SADDLE
180.58650729	48.10968813	3.40151156	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2026AE4

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2090-01-17.961	84433.961	-3.330	1.30 ± 0.002	1.29E5	2.76E-8	3.88E-3	-9.77
2094-01-17.985	85894.985	-3.105	1.66 ± 0.002	4.09E4	7.66E-8	3.88E-3	-9.35
2098-01-17.901	87355.901	-1.125	0.38 ± 0.009	2.62E3	2.73E-4	3.89E-3	-5.83
2100-01-18.389	88086.389	-1.045	1.72 ± 0.002	8.72E4	4.32E-6	3.88E-3	-7.64
2115-01-18.977	93564.977	-1.138	1.38 ± 0.000	2.56E7	1.73E-8	3.90E-3	-10.12


Based on 44 optical observations (of which 2 are rejected as outliers) from 2026/01/15.215 to 2026/01/16.279.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.73 and 1.73 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20260118 141342.607 UTC.

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Download Impactor Table as: