Asteroids

2023JK1 help

Last update: 2026-05-28 13:15 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Amor

Perihelion (q)

1.050

Aphelion (Q)

3.110

Eccentricity (e)

0.495

Inclination (i)

10.5

deg

Orbit period (P)

1095.8

Earth MOID

0.03702

U parameter

0.0

Next Earth close approach

Date

2029-05-24

Nominal distance (from Earth center)

0.04169

6236479

Maximum Brightness

19.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

26 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-05-12

Observatory

University of Arizona 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

2.080101

1-sigma variation

7.492E-9

Unit

Eccentricity (e)

Value

0.495118

1-sigma variation

1.607E-8

Unit

Inclination (i)

Value

10.4790

1-sigma variation

1.074E-5

Unit

Long. of Ascending Node (Ω)

Value

67.1150

1-sigma variation

1.132E-5

Unit

Arg. of Perihelion (ω)

Value

178.2933

1-sigma variation

3.614E-5

Unit

Mean Anomaly (M)

Value

4.32415

1-sigma variation

0.00001

Unit

Perihelion distance

Value

1.050206

1-sigma variation

Unit

Aphelion distance

Value

3.109997

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

2.121864

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.037024

1-sigma variation

Unit

MOID

Value

0.037022

1-sigma variation

Unit

Orbit Period

Value

1095.7845

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.61255E-17	-1.03921E-16	-4.94085E-14	5.00294E-14	-2.36903E-13	5.29129E-14
e	-1.03921E-16	2.58239E-16	9.58628E-14	-1.28607E-13	4.67767E-13	-9.61103E-14
i	-4.94085E-14	9.58628E-14	1.15292E-10	-1.01551E-10	3.35031E-10	-6.80847E-11
Ω	5.00294E-14	-1.28607E-13	-1.01551E-10	1.28249E-10	-3.32394E-10	5.86213E-11
ω	-2.36903E-13	4.67767E-13	3.35031E-10	-3.32394E-10	1.30636E-9	-2.81433E-10
M	5.29129E-14	-9.61103E-14	-6.80847E-11	5.86213E-11	-2.81433E-10	6.46303E-11

Date of computation: 2026-05-28 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

25.013

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

26 - 60*

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

3318

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.889088

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2017-04-26.59665

Unit

Source

[2]

Last Observation

Value

2026-05-27.208604

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

78 (5)

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 2023JK1 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
704 Interamnia	1965-02-05 11:37	< 1 min	0.0050570	0.0050523	0.0000016
EARTH	2014-05-06 05:34	< 1 min	0.1387422	0.1387420	0.0000001
EARTH	2017-05-14 14:00	< 1 min	0.0823517	0.0823516	0.0000000
EARTH	2020-05-22 03:08	< 1 s	0.0454999	0.0454998	0.0000000
EARTH	2023-05-23 14:37	< 1 s	0.0436793	0.0436792	0.0000000
EARTH	2026-05-27 12:06	< 1 s	0.0376051	0.0376050	0.0000000
EARTH	2029-05-24 14:15	< 1 min	0.0416883	0.0416882	0.0000000
EARTH	2032-05-19 01:54	< 1 min	0.0621795	0.0621788	0.0000002
EARTH	2035-05-09 09:22	< 1 min	0.1251546	0.1251532	0.0000004
EARTH	2038-05-04 17:17	< 1 min	0.1681399	0.1681383	0.0000005
4 Vesta	2113-12-10 12:56	< 1 min	0.0040779	0.0040755	0.0000008

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
0.97922107	142.12701742	0.03702224	MINIMUM
0.95006078	322.09193104	2.03727182	SADDLE
180.28539175	321.38801886	2.12288577	SADDLE
180.35581692	141.43306394	4.12310701	MAXIMUM

Download:

MOID Plots

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