Asteroids

2026JK2 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.576

Aphelion (Q)

1.719

Eccentricity (e)

0.498

Inclination (i)

26.7

deg

Orbit period (P)

448.7

Earth MOID

0.00292

U parameter

7.1

Next Earth close approach

Date

2042-05-09

Nominal distance (from Earth center)

0.1642

24563792

Maximum Brightness

25.1

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

25.7

mag

Diameter

19 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-05-11

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.147041

1-sigma variation

0.000204

Unit

Eccentricity (e)

Value

0.498220

1-sigma variation

0.000122

Unit

Inclination (i)

Value

26.6575

1-sigma variation

0.0071

Unit

Long. of Ascending Node (Ω)

Value

54.7234

1-sigma variation

2.805E-5

Unit

Arg. of Perihelion (ω)

Value

286.6600

1-sigma variation

0.0060

Unit

Mean Anomaly (M)

Value

331.16856

1-sigma variation

0.01486

Unit

Perihelion distance

Value

0.575562

1-sigma variation

Unit

Aphelion distance

Value

1.718520

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.234729

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.004704

1-sigma variation

Unit

MOID

Value

0.002918

1-sigma variation

Unit

Orbit Period

Value

448.7111

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.16140E-8	2.48727E-8	1.44116E-6	-5.22050E-9	-1.22386E-6	3.03149E-6
e	2.48727E-8	1.48672E-8	8.61386E-7	-3.11214E-9	-7.31433E-7	1.81195E-6
i	1.44116E-6	8.61386E-7	4.99114E-5	-1.80984E-7	-4.23842E-5	1.04986E-4
Ω	-5.22050E-9	-3.11214E-9	-1.80984E-7	7.86801E-10	1.54278E-7	-3.80107E-7
ω	-1.22386E-6	-7.31433E-7	-4.23842E-5	1.54278E-7	3.60001E-5	-8.91539E-5
M	3.03149E-6	1.81195E-6	1.04986E-4	-3.80107E-7	-8.91539E-5	2.20839E-4

Date of computation: 2026-05-16 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

25.675

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

19 - 40*

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

0.364251

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-05-11.418882

Unit

Source

[2]

Last Observation

Value

2026-05-15.046009

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

64 (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 2026JK2 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	1961-05-17 11:23	634.8	0.0512444	0.0048218	0.0158243
VENUS	1965-04-27 20:08	> 1 d	0.0465995	0.0063970	0.0384865
VENUS	1966-07-21 16:06	> 1 d	0.0380990	0.0073195	0.0520183
VENUS	1967-10-14 05:25	> 1 d	0.0350991	0.0074169	0.0577702
VENUS	1969-01-05 11:52	> 1 d	0.0375316	0.0071094	0.0538944
VENUS	1970-03-30 11:01	> 1 d	0.0459510	0.0064028	0.0417573
EARTH	1977-05-14 04:30	> 1 d	0.0287309	0.0040967	0.0525774
EARTH	1988-05-20 13:50	> 1 d	0.1537996	0.0201051	0.0447946
EARTH	1989-11-26 10:08	> 1 d	0.1932377	0.1769836	0.0183506
EARTH	2000-12-08 01:01	> 1 d	0.1912146	0.1762777	0.0143761
EARTH	2015-05-10 05:57	1025.1	0.1377107	0.0855630	0.0173901
EARTH	2026-05-15 16:25	< 1 s	0.0031904	0.0031879	0.0000008
EARTH	2042-05-09 00:18	> 1 d	0.1641988	0.0890905	0.0250445
EARTH	2053-05-22 06:32	1418.8	0.1976462	0.0756449	0.0406803
EARTH	2054-12-02 03:41	> 1 d	0.1722393	0.1719917	0.0023562
EARTH	2069-05-18 20:54	> 1 d	0.0890420	0.0018424	0.0620589
EARTH	2085-05-16 20:54	> 1 d	0.0322504	0.0006400	0.0637294
EARTH	2101-05-19 19:10	> 1 d	0.0832810	0.0002130	0.1007166
EARTH	2102-11-26 01:27	> 1 w	0.1991444	0.1759681	0.0554543
EARTH	2117-05-23 06:54	> 1 d	0.1916686	0.0011798	0.2275876
EARTH	2118-12-04 11:40	> 1 w	0.1724185	0.1722678	0.0103540

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
283.98525262	129.31622111	0.00291765	MINIMUM
60.62013911	326.42740435	0.17175735	MINIMUM
352.30448825	225.44837899	0.55715198	SADDLE
173.55820241	54.22535261	0.93106096	SADDLE
355.24818176	51.18693911	1.52866884	SADDLE
181.55679726	239.28309268	2.66506244	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2026JK2

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2095-05-16.167	86378.167	-1.344	0.42 ± 0.045	1.95E7	1.75E-8	1.56E0	-7.92
2095-05-16.169	86378.169	-1.432	0.05 ± 0.011	2.29E6	1.42E-7	1.56E0	-7.01
2095-05-16.173	86378.173	-1.378	0.48 ± 0.000	3.23E5	1.00E-6	1.56E0	-6.16
2100-05-16.394	88204.394	-4.645	0.81 ± 0.001	2.42E5	6.85E-11	1.55E0	-10.36


Based on 64 optical observations (of which 0 are rejected as outliers) from 2026/05/11.419 to 2026/05/15.046.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.14 and 1.14 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20260516 140136.110 UTC.

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