Asteroids

2023KG1 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.739

Aphelion (Q)

1.359

Eccentricity (e)

0.296

Inclination (i)

14.9

deg

Orbit period (P)

392.6

Earth MOID

0.03936

U parameter

7.6

Next Earth close approach

Date

2034-10-25

Nominal distance (from Earth center)

0.1967

29425250

Maximum Brightness

24.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.9

mag

Diameter

27 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-05-21

Observatory

Moonbase South Observatory, Hakos

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.049236

1-sigma variation

0.000315

Unit

Eccentricity (e)

Value

0.295542

1-sigma variation

0.000423

Unit

Inclination (i)

Value

14.8877

1-sigma variation

0.0258

Unit

Long. of Ascending Node (Ω)

Value

239.0565

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

248.3403

1-sigma variation

0.0199

Unit

Mean Anomaly (M)

Value

197.47034

1-sigma variation

0.45109

Unit

Perihelion distance

Value

0.739143

1-sigma variation

Unit

Aphelion distance

Value

1.359329

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.061372

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.124541

1-sigma variation

Unit

MOID

Value

0.039360

1-sigma variation

Unit

Orbit Period

Value

392.5618

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.89143E-8	1.32915E-7	8.10578E-6	1.05460E-7	6.25506E-6	-1.41870E-4
e	1.32915E-7	1.78618E-7	1.08921E-5	1.41739E-7	8.40493E-6	-1.90638E-4
i	8.10578E-6	1.08921E-5	6.64330E-4	8.64070E-6	5.12498E-4	-1.16258E-2
Ω	1.05460E-7	1.41739E-7	8.64070E-6	1.12667E-7	6.67062E-6	-1.51263E-4
ω	6.25506E-6	8.40493E-6	5.12498E-4	6.67062E-6	3.95658E-4	-8.97153E-3
M	-1.41870E-4	-1.90638E-4	-1.16258E-2	-1.51263E-4	-8.97153E-3	2.03480E-1

Date of computation: 2025-09-10 00:30 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

24.945

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

27 - 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

Unit

Source

[1]

Unobserved

Value

846

Unit

Source

[1]

Normalized RMS of residuals

Value

0.623405

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-05-21.00424

Unit

Source

[2]

Last Observation

Value

2023-05-30.396835

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

45 (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

Close Approaches for 2023KG1 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1951-05-13 03:15	563.0	0.0539787	0.0417197	0.0223701
EARTH	1962-10-25 05:46	113.9	0.1902486	0.1891502	0.0003669
EARTH	1965-05-16 05:28	965.8	0.1740546	0.1499008	0.0081406
EARTH	1977-11-16 08:57	> 1 d	0.1242629	0.0994580	0.0267328
EARTH	1980-05-14 23:44	> 1 d	0.0873255	0.0407715	0.0450910
EARTH	1991-10-30 19:54	> 1 d	0.1287357	0.0944062	0.0410088
EARTH	1994-05-13 05:59	> 1 d	0.1063314	0.0429433	0.0539671
EARTH	2006-11-26 00:16	> 1 w	0.1668141	0.1160960	0.0298372
EARTH	2009-05-17 09:07	> 1 d	0.1457944	0.0474783	0.0369058
EARTH	2020-11-04 21:17	622.7	0.0931225	0.0912431	0.0010807
EARTH	2023-05-13 12:58	< 1 min	0.0454593	0.0452406	0.0000729
EARTH	2034-10-25 00:08	> 1 d	0.1966956	0.1187843	0.0303542
EARTH	2037-05-16 12:33	> 1 d	0.1762476	0.0748826	0.0373514
EARTH	2049-11-19 17:15	> 1 w	0.1391768	0.1021808	0.0668762
EARTH	2052-05-16 01:27	> 1 d	0.1105587	0.0394701	0.0965801
EARTH	2063-11-01 07:42	> 1 w	0.1168089	0.0928656	0.0681269
EARTH	2066-05-13 04:33	1345.0	0.0945022	0.0404797	0.0934247
EARTH	2078-11-22 16:00	> 1 w	0.1513254	0.1057492	0.0440577
EARTH	2081-05-16 17:08	> 1 d	0.1188458	0.0393771	0.0463418
EARTH	2092-10-30 20:41	> 1 d	0.1236340	0.0990701	0.0098146
EARTH	2095-05-13 13:57	623.2	0.1033985	0.0431235	0.0259590
EARTH	2107-11-28 01:21	> 1 w	0.1691937	0.1168267	0.0641560
EARTH	2110-05-19 04:23	> 1 d	0.1512915	0.0377805	0.1005436
EARTH	2121-11-05 01:20	> 1 w	0.0962517	0.0901919	0.0665646
EARTH	2124-05-13 19:54	> 1 d	0.0628499	0.0383958	0.1640834

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
87.60084262	129.56432469	0.04046867	MINIMUM
293.22328280	302.91037337	0.09120906	MINIMUM
10.71978646	38.60614824	0.32777166	SADDLE
189.45113193	212.02456705	0.45015637	SADDLE
4.09788987	209.52557010	1.74077553	SADDLE
179.02468717	24.02025585	2.32788533	MAXIMUM

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MOID Plots

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