Asteroids

2023EZ1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.286

Aphelion (Q)

2.894

Eccentricity (e)

0.820

Inclination (i)

6.0

deg

Orbit period (P)

732.2

Earth MOID

0.01477

U parameter

9.0

Next Earth close approach

Date

2027-03-11

Nominal distance (from Earth center)

0.05809

8689736

Maximum Brightness

21.8

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

1.589868

1-sigma variation

0.007871

Unit

Eccentricity (e)

Value

0.820209

1-sigma variation

0.001663

Unit

Inclination (i)

Value

6.0031

1-sigma variation

0.0748

Unit

Long. of Ascending Node (Ω)

Value

340.1632

1-sigma variation

0.0751

Unit

Arg. of Perihelion (ω)

Value

62.6899

1-sigma variation

0.1433

Unit

Mean Anomaly (M)

Value

146.53522

1-sigma variation

4.60752

Unit

Perihelion distance

Value

0.285844

1-sigma variation

Unit

Aphelion distance

Value

2.893892

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.631569

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.157349

1-sigma variation

Unit

MOID

Value

0.014772

1-sigma variation

Unit

Orbit Period

Value

732.2174

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.19482E-5	1.30884E-5	5.88892E-4	5.91200E-4	-1.12762E-3	-3.62645E-2
e	1.30884E-5	2.76534E-6	1.24423E-4	1.24914E-4	-2.38250E-4	-7.66197E-3
i	5.88892E-4	1.24423E-4	5.59836E-3	5.62075E-3	-1.07202E-2	-3.44738E-1
Ω	5.91200E-4	1.24914E-4	5.62075E-3	5.64417E-3	-1.07640E-2	-3.46089E-1
ω	-1.12762E-3	-2.38250E-4	-1.07202E-2	-1.07640E-2	2.05289E-2	6.60109E-1
M	-3.62645E-2	-7.66197E-3	-3.44738E-1	-3.46089E-1	6.60109E-1	2.12292E1

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

24.109

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

958

Unit

Source

[1]

Normalized RMS of residuals

Value

0.451528

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-03-14.16618

Unit

Source

[2]

Last Observation

Value

2023-03-22.18825

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

46 (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 2023EZ1 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
MERCURY	1950-10-03 06:55	> 1 mo	0.0254655	0.0152766	6.3210290
VENUS	1964-11-19 03:24	> 1 mo	0.0292479	0.0271519	0.5466498
MERCURY	1990-12-05 11:54	> 1 mo	0.0448698	0.0420747	0.1544935
MERCURY	1996-12-24 04:09	> 1 mo	0.0441823	0.0024619	0.7258063
MERCURY	2003-01-07 14:22	> 1 mo	0.0239125	0.0143949	1.6841797
EARTH	2011-03-01 21:49	> 1 mo	0.1836112	0.0144812	0.9778545
EARTH	2013-03-03 02:41	> 1 mo	0.1399582	0.0142613	0.8777779
EARTH	2015-03-05 03:56	> 1 mo	0.1000324	0.0139901	0.7620692
EARTH	2017-03-06 03:38	> 1 w	0.0650699	0.0139327	0.5935107
EARTH	2019-03-08 08:01	> 1 w	0.0287351	0.0145303	0.3454971
MERCURY	2021-01-29 04:01	> 1 w	0.0145102	0.0141836	0.0451410
EARTH	2021-03-08 13:38	> 1 d	0.0157227	0.0144707	0.0458676
EARTH	2023-03-09 13:54	< 1 min	0.0152484	0.0151023	0.0000487
EARTH	2025-03-10 01:27	> 1 d	0.0307186	0.0146706	0.1028461
MERCURY	2027-01-22 01:41	> 1 mo	0.0486581	0.0437212	0.0986132
EARTH	2027-03-11 19:00	> 1 w	0.0580873	0.0146927	0.1997160
EARTH	2029-03-12 16:51	> 1 w	0.0883201	0.0149027	0.2715895
EARTH	2031-03-15 06:36	> 1 w	0.1338871	0.0157534	0.3283797
MERCURY	2033-01-27 07:20	> 1 mo	0.0444560	0.0432146	0.1192396
VENUS	2033-03-03 07:29	> 1 w	0.0323232	0.0315948	0.0984777
EARTH	2033-03-16 11:02	> 1 w	0.1720423	0.0160080	0.3750165
MERCURY	2039-02-03 22:40	> 1 mo	0.0435774	0.0432170	0.1563574
MERCURY	2045-02-12 02:11	> 1 mo	0.0453242	0.0436363	0.4862172
MERCURY	2051-02-20 15:29	> 1 mo	0.0459997	0.0437897	0.7282618
VENUS	2053-02-03 23:12	> 1 mo	0.0382082	0.0289580	1.6359639
MERCURY	2057-02-26 14:26	> 1 mo	0.0441392	0.0438977	0.3554269
MERCURY	2063-03-04 15:44	> 1 mo	0.0484455	0.0440312	2.0217932

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
62.70461316	65.15290252	0.01467944	MINIMUM
296.48239122	174.47705887	0.09526511	MINIMUM
358.26159861	297.82676039	0.70782142	SADDLE
358.10782658	117.39176652	1.29260930	SADDLE
179.90032532	120.17525699	1.89245888	SADDLE
179.76046840	300.13566378	3.88233144	MAXIMUM

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MOID Plots

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