Asteroids

2023EQ2 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.977

Aphelion (Q)

2.850

Eccentricity (e)

0.489

Inclination (i)

1.6

deg

Orbit period (P)

966.7

Earth MOID

0.01156

U parameter

7.7

Next Earth close approach

Date

2068-01-21

Nominal distance (from Earth center)

0.02596

3883390

Maximum Brightness

20.7

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

2023-03-14

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

1.913377

1-sigma variation

0.001629

Unit

Eccentricity (e)

Value

0.489449

1-sigma variation

0.000441

Unit

Inclination (i)

Value

1.6358

1-sigma variation

0.0012

Unit

Long. of Ascending Node (Ω)

Value

179.5556

1-sigma variation

0.0012

Unit

Arg. of Perihelion (ω)

Value

318.2628

1-sigma variation

0.0013

Unit

Mean Anomaly (M)

Value

17.50148

1-sigma variation

0.47837

Unit

Perihelion distance

Value

0.976876

1-sigma variation

Unit

Aphelion distance

Value

2.849879

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.068782

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.287783

1-sigma variation

Unit

MOID

Value

0.011561

1-sigma variation

Unit

Orbit Period

Value

966.7170

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.65506E-6	7.18152E-7	1.90973E-6	1.90877E-6	-2.15323E-6	-7.79471E-4
e	7.18152E-7	1.94249E-7	5.16539E-7	5.16316E-7	-5.82504E-7	-2.10835E-4
i	1.90973E-6	5.16539E-7	1.37499E-6	1.36966E-6	-1.53982E-6	-5.60658E-4
Ω	1.90877E-6	5.16316E-7	1.36966E-6	1.38668E-6	-1.57310E-6	-5.60375E-4
ω	-2.15323E-6	-5.82504E-7	-1.53982E-6	-1.57310E-6	1.81326E-6	6.32135E-4
M	-7.79471E-4	-2.10835E-4	-5.60658E-4	-5.60375E-4	6.32135E-4	2.28837E-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

26.019

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

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

956

Unit

Source

[1]

Normalized RMS of residuals

Value

0.683086

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-03-03.28553

Unit

Source

[2]

Last Observation

Value

2023-03-24.30754

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

20 (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 2023EQ2 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	1973-01-03 21:19	> 1 w	0.0748380	0.0249392	0.0846968
EARTH	1994-03-21 11:26	> 1 w	0.1264074	0.0068791	0.2056950
EARTH	2023-02-28 23:35	< 1 min	0.0151638	0.0151269	0.0000123
16 Psyche	2029-06-25 02:08	> 1 d	0.0054790	0.0006102	0.0162809
EARTH	2068-01-21 04:06	> 1 mo	0.0259589	0.0229613	0.0710842
16 Psyche	2074-06-06 03:44	> 1 mo	0.0161666	0.0008346	0.2962273
EARTH	2097-03-24 10:10	> 1 mo	0.1513471	0.0048896	2.4053612
EARTH	2104-12-31 13:03	> 1 mo	0.1327734	0.0269612	2.2154256

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
10.76751855	53.13699935	0.01164154	MINIMUM
180.32553824	215.98389097	1.83681906	SADDLE
1.01381703	216.74841548	1.98982173	SADDLE
180.34983615	35.99305631	3.83626771	MAXIMUM

Download:

MOID Plots

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