Asteroids

2023EG2 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.965

Aphelion (Q)

2.773

Eccentricity (e)

0.484

Inclination (i)

25.7

deg

Orbit period (P)

933.4

Earth MOID

0.08238

U parameter

8.7

Next Earth close approach

Date

2046-03-18

Nominal distance (from Earth center)

0.1092

16336718

Maximum Brightness

21.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.1

mag

Diameter

40 - 90*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-03-14

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.869162

1-sigma variation

0.006819

Unit

Eccentricity (e)

Value

0.483716

1-sigma variation

0.001816

Unit

Inclination (i)

Value

25.6555

1-sigma variation

0.0526

Unit

Long. of Ascending Node (Ω)

Value

175.8976

1-sigma variation

0.0058

Unit

Arg. of Perihelion (ω)

Value

50.7039

1-sigma variation

0.0416

Unit

Mean Anomaly (M)

Value

2.35746

1-sigma variation

1.96225

Unit

Perihelion distance

Value

0.965019

1-sigma variation

Unit

Aphelion distance

Value

2.773304

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.100062

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.059012

1-sigma variation

Unit

MOID

Value

0.082382

1-sigma variation

Unit

Orbit Period

Value

933.4019

1-sigma variation

Unit

U parameter

Value

8.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.65024E-5	1.23805E-5	3.58488E-4	3.98120E-5	-2.83775E-4	-1.33811E-2
e	1.23805E-5	3.29612E-6	9.54420E-5	1.05994E-5	-7.55480E-5	-3.56250E-3
i	3.58488E-4	9.54420E-5	2.76362E-3	3.06916E-4	-2.18749E-3	-1.03155E-1
Ω	3.98120E-5	1.05994E-5	3.06916E-4	3.40849E-5	-2.42926E-4	-1.14559E-2
ω	-2.83775E-4	-7.55480E-5	-2.18749E-3	-2.42926E-4	1.73279E-3	8.16560E-2
M	-1.33811E-2	-3.56250E-3	-1.03155E-1	-1.14559E-2	8.16560E-2	3.85041E0

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

24.141

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

40 - 90*

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

914

Unit

Source

[1]

Normalized RMS of residuals

Value

0.649779

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-03-14.441718

Unit

Source

[2]

Last Observation

Value

2023-03-22.09759

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

40 (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 2023EG2 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	1977-03-14 23:04	> 1 mo	0.1771043	0.0745785	1.3357932
EARTH	2000-03-18 05:38	> 1 mo	0.1114754	0.0793371	0.5585272
EARTH	2023-03-20 00:42	< 1 min	0.0969764	0.0962883	0.0002294
EARTH	2046-03-18 22:35	> 1 mo	0.1092042	0.0807764	0.5272888
EARTH	2069-03-15 23:53	> 1 mo	0.1576206	0.0787980	1.3202249

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
332.63182620	78.06771931	0.08314951	MINIMUM
185.75252034	305.18112935	1.87392312	SADDLE
6.05188939	311.23480385	1.92243031	SADDLE
177.77175870	120.39968616	3.73983707	MAXIMUM

Download:

MOID Plots

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