Asteroids

2026AD3 help

Last update: 2026-03-18 10:55 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.908

Aphelion (Q)

1.882

Eccentricity (e)

0.349

Inclination (i)

0.8

deg

Orbit period (P)

601.8

Earth MOID

0.00440

U parameter

8.2

Next Earth close approach

Date

2030-09-30

Nominal distance (from Earth center)

0.02551

3815506

Maximum Brightness

22.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.6

mag

Diameter

8 - 18*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-13

Observatory

Kitt Peak-Bok

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

1.394974

1-sigma variation

0.001688

Unit

Eccentricity (e)

Value

0.349042

1-sigma variation

0.000904

Unit

Inclination (i)

Value

0.8236

1-sigma variation

0.0018

Unit

Long. of Ascending Node (Ω)

Value

267.3743

1-sigma variation

0.0102

Unit

Arg. of Perihelion (ω)

Value

153.0440

1-sigma variation

0.0122

Unit

Mean Anomaly (M)

Value

112.74623

1-sigma variation

0.21256

Unit

Perihelion distance

Value

0.908069

1-sigma variation

Unit

Aphelion distance

Value

1.881879

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.760649

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.049437

1-sigma variation

Unit

MOID

Value

0.004396

1-sigma variation

Unit

Orbit Period

Value

601.7936

1-sigma variation

Unit

U parameter

Value

8.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.84947E-6	1.52547E-6	2.99532E-6	-1.20678E-5	-2.07701E-6	-3.58798E-4
e	1.52547E-6	8.16872E-7	1.60705E-6	-6.36029E-6	-1.28336E-6	-1.92057E-4
i	2.99532E-6	1.60705E-6	3.21245E-6	-1.08389E-5	-5.24098E-6	-3.76714E-4
Ω	-1.20678E-5	-6.36029E-6	-1.08389E-5	1.04656E-4	-7.94699E-5	1.53244E-3
ω	-2.07701E-6	-1.28336E-6	-5.24098E-6	-7.94699E-5	1.49153E-4	2.39491E-4
M	-3.58798E-4	-1.92057E-4	-3.76714E-4	1.53244E-3	2.39491E-4	4.51824E-2

Date of computation: 2026-03-18 10:55 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

27.63

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

8 - 18*

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

Unit

Source

[1]

Unobserved

Value

113

Unit

Source

[1]

Normalized RMS of residuals

Value

0.650064

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-13.2864

Unit

Source

[2]

Last Observation

Value

2026-01-15.18554

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

25 (1)

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 2026AD3 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	1966-11-29 13:29	> 1 mo	0.0780438	0.0265076	0.0867539
EARTH	1985-01-16 07:55	> 1 d	0.0931277	0.0054662	0.0373899
EARTH	1989-09-24 11:41	> 1 w	0.0675172	0.0143789	0.1517386
EARTH	2007-11-02 18:10	> 1 mo	0.0733135	0.0227468	0.0639585
EARTH	2026-01-09 12:53	< 1 min	0.0213392	0.0211840	0.0000517
EARTH	2030-09-30 15:59	> 1 w	0.0255051	0.0140309	0.0443334
EARTH	2049-01-11 09:46	> 1 w	0.0329179	0.0053798	0.1759354
EARTH	2053-09-30 18:28	> 1 mo	0.0267827	0.0137800	0.2174571
EARTH	2072-01-05 20:08	> 1 mo	0.0122957	0.0050133	0.2228504
EARTH	2089-09-30 02:27	> 1 mo	0.0264461	0.0133064	7.0282104
EARTH	2102-10-11 03:53	> 1 mo	0.0304609	0.0133477	29.5515281
EARTH	2115-12-19 21:09	> 1 mo	0.0614502	0.0110238	32.5624490

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
32.25290663	1.18917811	0.00439646	MINIMUM
324.06476772	266.91737015	0.01406965	MINIMUM
357.80625914	313.61489410	0.08055418	SADDLE
179.00919761	134.96825291	0.86992985	SADDLE
357.93140082	133.81003843	1.91993651	SADDLE
179.05239471	315.00696286	2.87008101	MAXIMUM

Download:

MOID Plots

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