Asteroids

2026AB2 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.748

Aphelion (Q)

2.307

Eccentricity (e)

0.510

Inclination (i)

25.6

deg

Orbit period (P)

689.5

Earth MOID

0.01298

U parameter

8.8

Next Earth close approach

Date

2043-01-07

Nominal distance (from Earth center)

0.07147

10691265

Maximum Brightness

23.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

13 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-12

Observatory

JPL SynTrack Robotic Telescope, Auberry

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

1.527402

1-sigma variation

0.005268

Unit

Eccentricity (e)

Value

0.510248

1-sigma variation

0.001855

Unit

Inclination (i)

Value

25.5727

1-sigma variation

0.0691

Unit

Long. of Ascending Node (Ω)

Value

111.8146

1-sigma variation

0.0026

Unit

Arg. of Perihelion (ω)

Value

284.4491

1-sigma variation

0.0559

Unit

Mean Anomaly (M)

Value

103.57092

1-sigma variation

0.57728

Unit

Perihelion distance

Value

0.748049

1-sigma variation

Unit

Aphelion distance

Value

2.306755

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.018477

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.277913

1-sigma variation

Unit

MOID

Value

0.012975

1-sigma variation

Unit

Orbit Period

Value

689.4909

1-sigma variation

Unit

U parameter

Value

8.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.77556E-5	9.77446E-6	3.62889E-4	1.36830E-5	2.93430E-4	-3.04134E-3
e	9.77446E-6	3.44251E-6	1.27898E-4	4.82255E-6	1.03254E-4	-1.07103E-3
i	3.62889E-4	1.27898E-4	4.77800E-3	1.80177E-4	3.81026E-3	-3.97587E-2
Ω	1.36830E-5	4.82255E-6	1.80177E-4	6.79448E-6	1.43654E-4	-1.49913E-3
ω	2.93430E-4	1.03254E-4	3.81026E-3	1.43654E-4	3.12288E-3	-3.21569E-2
M	-3.04134E-3	-1.07103E-3	-3.97587E-2	-1.49913E-3	-3.21569E-2	3.33258E-1

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

[-]

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

26.489

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

13 - 30*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.681739

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-12.268971

Unit

Source

[2]

Last Observation

Value

2026-01-13.421664

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

11 (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 2026AB2 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	1956-01-19 07:16	> 1 mo	0.1609882	0.0108837	1.5939644
EARTH	1993-07-29 18:44	> 1 w	0.1590774	0.1590026	0.0021419
EARTH	2009-01-05 01:33	> 1 w	0.1169807	0.0095208	0.5576541
EARTH	2010-08-02 03:21	> 1 w	0.1985488	0.1598051	0.2808719
EARTH	2026-01-10 10:26	< 1 min	0.0216189	0.0214346	0.0000614
EARTH	2043-01-07 23:50	> 1 w	0.0714667	0.0106333	0.5506837
EARTH	2060-01-02 18:12	> 1 mo	0.1709827	0.0007438	0.6330337
EARTH	2061-07-31 02:20	> 1 w	0.1683440	0.1629294	0.1507877
EARTH	2078-07-27 22:37	> 1 w	0.1786176	0.1636590	0.2529097
EARTH	2109-01-20 06:16	> 1 w	0.1697255	0.0038172	0.5823643
EARTH	2126-01-14 18:55	> 1 w	0.0500605	0.0082391	0.3461798

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
46.63285794	9.24263239	0.01287924	MINIMUM
302.25088982	205.69159968	0.16080407	MINIMUM
352.30583550	283.06038682	0.45358132	SADDLE
176.41349159	113.83815340	1.45737162	SADDLE
356.06504641	110.29856177	1.71482579	SADDLE
180.85071669	296.61998863	3.23877582	MAXIMUM

Download:

MOID Plots

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