Asteroids

2026JX3 help

Last update: 2026-05-19 13:16 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.911

Aphelion (Q)

1.411

Eccentricity (e)

0.215

Inclination (i)

4.4

deg

Orbit period (P)

456.8

Earth MOID

0.00049

U parameter

5.9

Next Earth close approach

Date

2031-05-15

Nominal distance (from Earth center)

0.01616

2417596

Maximum Brightness

23.8

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

2.6 - 6*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-05-14

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

1.160782

1-sigma variation

0.000038

Unit

Eccentricity (e)

Value

0.215390

1-sigma variation

0.000036

Unit

Inclination (i)

Value

4.4181

1-sigma variation

0.0007

Unit

Long. of Ascending Node (Ω)

Value

232.1586

1-sigma variation

4.925E-5

Unit

Arg. of Perihelion (ω)

Value

296.0677

1-sigma variation

0.0007

Unit

Mean Anomaly (M)

Value

64.40874

1-sigma variation

0.00474

Unit

Perihelion distance

Value

0.910761

1-sigma variation

Unit

Aphelion distance

Value

1.410803

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.001149

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.232653

1-sigma variation

Unit

MOID

Value

0.000490

1-sigma variation

Unit

Orbit Period

Value

456.7984

1-sigma variation

Unit

U parameter

Value

5.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.45019E-9	1.36703E-9	2.62312E-8	1.57627E-9	2.50813E-8	-1.80432E-7
e	1.36703E-9	1.28920E-9	2.47384E-8	1.50361E-9	2.34922E-8	-1.70032E-7
i	2.62312E-8	2.47384E-8	4.74872E-7	2.88770E-8	4.50579E-7	-3.26256E-6
Ω	1.57627E-9	1.50361E-9	2.88770E-8	2.42569E-9	2.25398E-8	-1.94571E-7
ω	2.50813E-8	2.34922E-8	4.50579E-7	2.25398E-8	4.74176E-7	-3.13502E-6
M	-1.80432E-7	-1.70032E-7	-3.26256E-6	-1.94571E-7	-3.13502E-6	2.24546E-5

Date of computation: 2026-05-19 13:16 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

30.04

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

2.6 - 6*

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

0.3

Unit

Source

[1]

Normalized RMS of residuals

Value

0.529

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-05-14.316396

Unit

Source

[2]

Last Observation

Value

2026-05-19.28336

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

35 (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 2026JX3 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	1951-03-04 22:31	> 1 mo	0.1374138	0.0947708	0.0374838
EARTH	1951-06-20 16:25	> 1 mo	0.1962180	0.0468330	0.1774492
EARTH	1959-12-04 17:52	> 1 d	0.0229439	0.0215835	0.0091251
EARTH	1970-05-17 23:10	> 1 d	0.0701684	0.0006556	0.0267787
EARTH	1979-04-24 10:43	> 1 w	0.0852066	0.0118295	0.0302776
EARTH	1987-11-02 19:57	> 1 w	0.1769905	0.1355920	0.0141776
EARTH	1988-02-06 03:29	> 1 w	0.1350353	0.1228925	0.0040511
EARTH	1996-12-03 00:41	160.6	0.0237257	0.0218386	0.0009606
EARTH	2007-05-05 11:03	> 1 d	0.0603568	0.0447315	0.0052113
EARTH	2015-12-06 00:55	539.5	0.0368486	0.0260870	0.0040971
EARTH	2026-05-13 05:01	< 1 min	0.0007329	0.0007325	0.0000001
EARTH	2031-05-15 07:01	253.8	0.0161606	0.0116810	0.0014933
EARTH	2055-01-04 11:31	> 1 d	0.1246066	0.0657792	0.0686625
EARTH	2060-02-29 09:38	> 1 mo	0.1029065	0.0998660	0.0065630
EARTH	2065-05-15 09:38	> 1 w	0.0201255	0.0004181	0.0709002
EARTH	2079-01-03 18:36	> 1 mo	0.1607879	0.0663492	1.5195013
EARTH	2084-04-29 06:28	> 1 mo	0.0530374	0.0072661	1.6517154
EARTH	2103-01-13 09:48	> 1 mo	0.0684047	0.0675775	0.5116214
EARTH	2108-05-14 19:20	> 1 mo	0.0080246	0.0010144	5.9943091
EARTH	2117-02-10 03:32	> 1 mo	0.0893939	0.0734135	193.6026797
EARTH	2126-01-06 04:19	> 1 mo	0.1853927	0.0675124	1071.0961135

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
53.01049538	126.71470969	0.00049021	MINIMUM
310.77059246	4.28738400	0.06526816	MINIMUM
357.34762463	59.67815290	0.10529368	SADDLE
181.22761022	245.49554797	0.41190243	SADDLE
4.08460814	247.99668401	1.91652428	SADDLE
183.08045879	66.98596438	2.40256479	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2026JX3

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2060-05-12.282	73591.282	-1.538	1.61 ± 0.000	3.33E3	1.07E-4	1.09E-3	-6.35
2066-05-12.526	75782.526	-1.525	0.25 ± 0.110	1.52E7	3.54E-8	1.09E-3	-9.90
2068-05-12.029	76513.029	0.271	2.11 ± 0.000	6.68E6	6.01E-8	1.09E-3	-9.69
2069-05-12.408	76878.408	-1.575	1.74 ± 0.000	5.66E5	5.37E-7	1.09E-3	-8.75
2074-05-12.712	78704.712	0.206	2.13 ± 0.000	3.31E5	1.03E-6	1.09E-3	-8.51
2074-05-12.723	78704.723	-1.618	2.09 ± 0.000	1.77E5	1.00E-6	1.09E-3	-8.53
2085-05-12.308	82722.308	0.137	2.16 ± 0.253	1.73E8	2.06E-9	1.09E-3	-11.31
2096-05-11.943	86739.943	0.279	2.11 ± 0.179	1.26E8	1.22E-8	1.09E-3	-10.61
2098-05-13.078	87471.078	0.280	0.84 ± 0.000	1.72E8	8.97E-9	1.09E-3	-10.75


Based on 35 optical observations (of which 0 are rejected as outliers) from 2026/05/14.316 to 2026/05/19.283.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 2.18 and 2.18 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20260519 135558.041 UTC.

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