Asteroids

2023ES2 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.887

Aphelion (Q)

1.671

Eccentricity (e)

0.307

Inclination (i)

30.4

deg

Orbit period (P)

528.3

Earth MOID

0.09561

U parameter

2.9

Next Earth close approach

Date

2032-09-22

Nominal distance (from Earth center)

0.1776

26568521

Maximum Brightness

21.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

21.1

mag

Diameter

160 - 400*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-03-15

Observatory

Pan-STARRS 1, Haleakala

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

1.278938

1-sigma variation

6.051E-8

Unit

Eccentricity (e)

Value

0.306556

1-sigma variation

0.000011

Unit

Inclination (i)

Value

30.3546

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

349.0909

1-sigma variation

2.494E-5

Unit

Arg. of Perihelion (ω)

Value

26.8690

1-sigma variation

0.0021

Unit

Mean Anomaly (M)

Value

85.24940

1-sigma variation

0.00432

Unit

Perihelion distance

Value

0.886872

1-sigma variation

Unit

Aphelion distance

Value

1.671005

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.097221

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.600837

1-sigma variation

Unit

MOID

Value

0.095612

1-sigma variation

Unit

Orbit Period

Value

528.2906

1-sigma variation

Unit

U parameter

Value

2.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.66151E-15	6.27656E-13	-2.82376E-12	-2.92018E-13	1.26723E-10	-2.59326E-10
e	6.27656E-13	1.17564E-10	9.54919E-11	-6.41460E-11	2.08198E-8	-4.37543E-8
i	-2.82376E-12	9.54919E-11	9.25344E-8	3.97902E-9	-1.76287E-7	2.76235E-7
Ω	-2.92018E-13	-6.41460E-11	3.97902E-9	6.22229E-10	-8.91946E-9	1.90344E-8
ω	1.26723E-10	2.08198E-8	-1.76287E-7	-8.91946E-9	4.56938E-6	-9.20191E-6
M	-2.59326E-10	-4.37543E-8	2.76235E-7	1.90344E-8	-9.20191E-6	1.86794E-5

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

21.093

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

160 - 400*

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

4763

Unit

Source

[1]

Unobserved

Value

910

Unit

Source

[1]

Normalized RMS of residuals

Value

0.604438

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2010-03-13.35585

Unit

Source

[2]

Last Observation

Value

2023-03-28.169962

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

33 (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

Close Approaches for 2023ES2 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	1951-09-19 10:27	12.4	0.1426927	0.1424549	0.0000793
EARTH	1993-08-28 18:19	9.4	0.1825144	0.1822810	0.0000778
EARTH	2006-09-06 08:06	9.1	0.1071784	0.1070858	0.0000310
EARTH	2019-09-14 15:49	9.8	0.1066880	0.1065541	0.0000447
EARTH	2032-09-22 16:24	10.9	0.1775996	0.1773705	0.0000764
EARTH	2074-08-31 07:44	7.6	0.1596267	0.1594563	0.0000569
EARTH	2087-09-08 03:47	7.1	0.1008312	0.1007921	0.0000131
EARTH	2100-09-15 23:22	7.8	0.1123097	0.1121852	0.0000415
EARTH	2113-09-24 11:33	8.7	0.1810597	0.1808748	0.0000616

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
338.67680176	245.96570547	0.09463289	MINIMUM
99.57627414	33.98636983	0.50012936	MINIMUM
58.94947663	351.37485308	0.53347725	SADDLE
216.68983167	116.19913028	0.79013655	SADDLE
9.92130173	104.27457848	1.87018805	SADDLE
172.50588231	264.96466679	2.65817135	MAXIMUM

Download:

MOID Plots

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