Asteroids

2026AJ2 help

Last update: 2026-01-24 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.003

Aphelion (Q)

1.662

Eccentricity (e)

0.247

Inclination (i)

19.9

deg

Orbit period (P)

562.0

Earth MOID

0.03940

U parameter

7.7

Next Earth close approach

Date

2046-01-15

Nominal distance (from Earth center)

0.09569

14314310

Maximum Brightness

22.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.6

mag

Diameter

21 - 50*

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.332761

1-sigma variation

0.000703

Unit

Eccentricity (e)

Value

0.247087

1-sigma variation

0.000374

Unit

Inclination (i)

Value

19.8613

1-sigma variation

0.0181

Unit

Long. of Ascending Node (Ω)

Value

292.4052

1-sigma variation

0.0005

Unit

Arg. of Perihelion (ω)

Value

153.6856

1-sigma variation

0.0105

Unit

Mean Anomaly (M)

Value

341.33938

1-sigma variation

0.00703

Unit

Perihelion distance

Value

1.003453

1-sigma variation

Unit

Aphelion distance

Value

1.662068

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.589546

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.040643

1-sigma variation

Unit

MOID

Value

0.039399

1-sigma variation

Unit

Orbit Period

Value

561.9875

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.94464E-7	2.62999E-7	1.27550E-5	-3.75016E-7	7.38753E-6	4.93771E-6
e	2.62999E-7	1.39887E-7	6.78425E-6	-1.99468E-7	3.92909E-6	2.62644E-6
i	1.27550E-5	6.78425E-6	3.29028E-4	-9.67396E-6	1.90548E-4	1.27382E-4
Ω	-3.75016E-7	-1.99468E-7	-9.67396E-6	2.84442E-7	-5.60186E-6	-3.74551E-6
ω	7.38753E-6	3.92909E-6	1.90548E-4	-5.60186E-6	1.10556E-4	7.36682E-5
M	4.93771E-6	2.62644E-6	1.27382E-4	-3.74551E-6	7.36682E-5	4.93663E-5

Date of computation: 2026-01-24 12:45 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

25.551

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

21 - 50*

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

0.739868

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-12.31235

Unit

Source

[2]

Last Observation

Value

2026-01-24.07971

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

32 (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

Close Approaches for 2026AJ2 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	1969-01-18 08:20	> 1 w	0.1644772	0.0311196	0.4517722
EARTH	1986-01-03 10:27	> 1 w	0.1729216	0.0264608	0.3486866
EARTH	2006-01-10 04:25	> 1 d	0.0480846	0.0395907	0.0575714
EARTH	2026-01-11 21:37	< 1 min	0.0405781	0.0404566	0.0000405
EARTH	2046-01-15 13:08	> 1 d	0.0956852	0.0366856	0.0941905
EARTH	2083-01-07 12:30	> 1 d	0.1011645	0.0353236	0.1250862
EARTH	2103-01-15 00:08	> 1 d	0.0588748	0.0382431	0.0345727

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
19.34127015	9.46032589	0.03939915	MINIMUM
157.47736067	148.62233613	0.69259731	SADDLE
352.00561907	156.58291152	2.01283111	SADDLE
183.17464264	348.40746435	2.63958219	MAXIMUM

Download:

MOID Plots

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