Asteroids

2023KT1 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

1.005

Aphelion (Q)

3.027

Eccentricity (e)

0.502

Inclination (i)

1.0

deg

Orbit period (P)

1045.6

Earth MOID

0.01481

U parameter

8.0

Next Earth close approach

Date

2043-07-28

Nominal distance (from Earth center)

0.08059

12055856

Maximum Brightness

22.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

17 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-05-21

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

2.016144

1-sigma variation

0.002856

Unit

Eccentricity (e)

Value

0.501604

1-sigma variation

0.000723

Unit

Inclination (i)

Value

1.0242

1-sigma variation

0.0013

Unit

Long. of Ascending Node (Ω)

Value

159.3506

1-sigma variation

0.0127

Unit

Arg. of Perihelion (ω)

Value

109.4702

1-sigma variation

0.0083

Unit

Mean Anomaly (M)

Value

14.18567

1-sigma variation

0.80456

Unit

Perihelion distance

Value

1.004839

1-sigma variation

Unit

Aphelion distance

Value

3.027449

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.820349

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.283701

1-sigma variation

Unit

MOID

Value

0.014812

1-sigma variation

Unit

Orbit Period

Value

1045.6365

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.15703E-6	2.06548E-6	3.57489E-6	3.55054E-5	-2.23331E-5	-2.29786E-3
e	2.06548E-6	5.23009E-7	9.05211E-7	8.98987E-6	-5.65441E-6	-5.81850E-4
i	3.57489E-6	9.05211E-7	1.56678E-6	1.55787E-5	-9.80684E-6	-1.00705E-3
Ω	3.55054E-5	8.98987E-6	1.55787E-5	1.61575E-4	-1.04635E-4	-1.00019E-2
ω	-2.23331E-5	-5.65441E-6	-9.80684E-6	-1.04635E-4	6.89942E-5	6.29117E-3
M	-2.29786E-3	-5.81850E-4	-1.00705E-3	-1.00019E-2	6.29117E-3	6.47312E-1

Date of computation: 2026-03-17 23:26 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

26.003

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

17 - 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

[-]

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

1056

Unit

Source

[1]

Normalized RMS of residuals

Value

0.420228

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-05-21.331992

Unit

Source

[2]

Last Observation

Value

2023-05-29.42383

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

37 (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

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 2023KT1 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	1954-07-28 02:20	> 1 mo	0.0847954	0.0146520	7.0383479
EARTH	1977-06-18 16:53	> 1 mo	0.0239644	0.0233265	0.0400064
EARTH	2000-06-03 23:19	> 1 mo	0.0181287	0.0179397	0.0196590
EARTH	2023-05-30 16:33	< 1 min	0.0255095	0.0254156	0.0000313
EARTH	2043-07-28 15:24	> 1 mo	0.0805884	0.0133039	0.2274381
EARTH	2086-06-28 15:05	> 1 mo	0.0170817	0.0145537	0.0438092

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
9.76719610	184.46285333	0.01469000	MINIMUM
351.58884403	152.51109894	0.01804325	MINIMUM
359.63492749	166.65051647	0.02130771	SADDLE
0.34555882	347.91246093	1.98876879	SADDLE
180.11405327	347.65052868	2.04361072	SADDLE
180.12533927	167.65934928	4.04499644	MAXIMUM

Download:

MOID Plots

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