Asteroids

2005EZ223 help

Last update: 2025-10-29 13:00 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.806

Aphelion (Q)

2.700

Eccentricity (e)

0.540

Inclination (i)

3.9

deg

Orbit period (P)

847.7

Earth MOID

0.02173

U parameter

0.0

Next Earth close approach

Date

2025-11-03

Nominal distance (from Earth center)

0.03996

5978114

Maximum Brightness

19.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.2

mag

Diameter

60 - 130*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2005-03-14

Observatory

Catalina Sky 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

1.752920

1-sigma variation

6.035E-9

Unit

Eccentricity (e)

Value

0.540444

1-sigma variation

1.215E-7

Unit

Inclination (i)

Value

3.9195

1-sigma variation

1.166E-5

Unit

Long. of Ascending Node (Ω)

Value

5.1309

1-sigma variation

4.705E-5

Unit

Arg. of Perihelion (ω)

Value

98.5531

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

349.12078

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.805566

1-sigma variation

Unit

Aphelion distance

Value

2.700275

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.347112

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.149809

1-sigma variation

Unit

MOID

Value

0.021734

1-sigma variation

Unit

Orbit Period

Value

847.6988

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.64169E-17	-6.17926E-16	6.04956E-14	4.69917E-14	-6.75240E-14	-4.08286E-14
e	-6.17926E-16	1.47511E-14	-1.18027E-12	-2.90718E-12	4.57190E-12	3.83786E-13
i	6.04956E-14	-1.18027E-12	1.35963E-10	1.86029E-10	-2.43713E-10	-6.64675E-11
Ω	4.69917E-14	-2.90718E-12	1.86029E-10	2.21374E-9	-3.13031E-9	2.00717E-10
ω	-6.75240E-14	4.57190E-12	-2.43713E-10	-3.13031E-9	4.62901E-9	-3.41064E-10
M	-4.08286E-14	3.83786E-13	-6.64675E-11	2.00717E-10	-3.41064E-10	9.63206E-11

Date of computation: 2025-10-29 13:00 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

23.238

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

60 - 130*

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

7534

Unit

Source

[1]

Unobserved

Value

1.0

Unit

Source

[1]

Normalized RMS of residuals

Value

0.540614

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2005-03-14.27806

Unit

Source

[2]

Last Observation

Value

2025-10-28.912

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

124 (1)

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 2005EZ223 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	1954-03-18 06:07	< 1 min	0.1560044	0.1560028	0.0000005
EARTH	1961-02-16 23:50	< 1 min	0.1184873	0.1184860	0.0000004
EARTH	1967-12-15 17:01	< 1 min	0.1762928	0.1762908	0.0000007
EARTH	1974-10-28 06:51	< 1 min	0.0741660	0.0741586	0.0000025
MARS	1979-04-28 21:43	< 1 min	0.0341888	0.0341844	0.0000015
EARTH	2005-03-09 19:48	< 1 min	0.0402598	0.0402592	0.0000002
EARTH	2012-02-03 11:34	< 1 min	0.1548551	0.1548544	0.0000002
EARTH	2018-12-14 12:19	< 1 min	0.1723646	0.1723643	0.0000001
EARTH	2025-11-03 09:31	< 1 min	0.0399612	0.0399608	0.0000001
EARTH	2063-03-12 05:18	< 1 min	0.0490805	0.0490774	0.0000010
EARTH	2070-02-09 07:15	< 1 min	0.1424846	0.1424843	0.0000001
EARTH	2076-12-25 10:06	< 1 min	0.1847113	0.1847101	0.0000004
EARTH	2083-11-12 00:58	< 1 min	0.0782852	0.0782781	0.0000024
EARTH	2090-10-25 22:57	< 1 min	0.1235167	0.1235062	0.0000035

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
37.05946340	64.59400285	0.02173353	MINIMUM
322.90896508	300.05554076	0.03979236	MINIMUM
359.73727052	1.87637376	0.18792294	SADDLE
179.98715619	182.40680930	1.68586190	SADDLE
0.04822855	182.43329372	1.82268744	SADDLE
180.04041411	2.43560663	3.68218242	MAXIMUM

Download:

MOID Plots

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