Asteroids

2026JK1 help

Last update: 2026-05-10 13:15 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.947

Aphelion (Q)

1.575

Eccentricity (e)

0.249

Inclination (i)

20.1

deg

Orbit period (P)

517.1

Earth MOID

0.00902

U parameter

7.6

Next Earth close approach

Date

2043-05-06

Nominal distance (from Earth center)

0.0759

11353852

Maximum Brightness

24.8

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

2026-05-09

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

1.260869

1-sigma variation

0.000513

Unit

Eccentricity (e)

Value

0.249327

1-sigma variation

0.000325

Unit

Inclination (i)

Value

20.1318

1-sigma variation

0.0153

Unit

Long. of Ascending Node (Ω)

Value

48.9681

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

230.1395

1-sigma variation

0.0357

Unit

Mean Anomaly (M)

Value

350.32344

1-sigma variation

0.02646

Unit

Perihelion distance

Value

0.946500

1-sigma variation

Unit

Aphelion distance

Value

1.575237

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.416797

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.010153

1-sigma variation

Unit

MOID

Value

0.009020

1-sigma variation

Unit

Orbit Period

Value

517.1341

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.62757E-7	1.61552E-7	7.76868E-6	8.01637E-8	-1.00896E-5	1.12814E-5
e	1.61552E-7	1.05680E-7	4.95841E-6	4.73615E-8	-3.82493E-6	5.76559E-6
i	7.76868E-6	4.95841E-6	2.35068E-4	2.31567E-6	-2.30150E-4	2.99996E-4
Ω	8.01637E-8	4.73615E-8	2.31567E-6	2.50781E-8	-3.79893E-6	3.79643E-6
ω	-1.00896E-5	-3.82493E-6	-2.30150E-4	-3.79893E-6	1.27800E-3	-8.71492E-4
M	1.12814E-5	5.76559E-6	2.99996E-4	3.79643E-6	-8.71492E-4	7.00074E-4

Date of computation: 2026-05-10 13:15 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

27.553

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

0.3

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.786218

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-05-09.290042

Unit

Source

[2]

Last Observation

Value

2026-05-09.610461

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

19 (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 2026JK1 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	1965-05-09 08:17	> 1 d	0.0164280	0.0076584	0.0575497
EARTH	1982-05-16 06:40	> 1 w	0.0900019	0.0034812	0.1202193
EARTH	2009-05-01 14:57	> 1 d	0.1581202	0.0003207	0.0633324
EARTH	2026-05-10 10:18	< 1 min	0.0094092	0.0093850	0.0000081
EARTH	2043-05-06 14:46	> 1 d	0.0758958	0.0066781	0.0629695
EARTH	2084-05-15 04:28	> 1 d	0.0796466	0.0159867	0.0214484
EARTH	2101-05-11 18:31	> 1 d	0.0107247	0.0098074	0.0083555
EARTH	2118-05-20 06:56	> 1 mo	0.1298171	0.0006050	0.7743805

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
320.69336660	124.41064692	0.00901983	MINIMUM
78.66047950	270.40816639	0.30137120	MINIMUM
33.54768852	218.00423177	0.35159610	SADDLE
197.37601235	6.67582054	0.69495890	SADDLE
6.34159431	1.26535242	1.91063964	SADDLE
175.03956416	169.17288120	2.57109801	MAXIMUM

Download:

MOID Plots

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