Asteroids

2022EE4 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.611

Aphelion (Q)

2.333

Eccentricity (e)

0.585

Inclination (i)

3.5

deg

Orbit period (P)

652.3

Earth MOID

0.00707

U parameter

8.8

Next Earth close approach

Date

2045-09-21

Nominal distance (from Earth center)

0.09849

14734159

Maximum Brightness

23.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.2

mag

Diameter

24 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-03-07

Observatory

Kitt Peak-Bok

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.472004

1-sigma variation

0.003814

Unit

Eccentricity (e)

Value

0.585163

1-sigma variation

0.001627

Unit

Inclination (i)

Value

3.5305

1-sigma variation

0.0112

Unit

Long. of Ascending Node (Ω)

Value

351.2405

1-sigma variation

0.0080

Unit

Arg. of Perihelion (ω)

Value

279.3005

1-sigma variation

0.0186

Unit

Mean Anomaly (M)

Value

101.35308

1-sigma variation

3.27800

Unit

Perihelion distance

Value

0.610643

1-sigma variation

Unit

Aphelion distance

Value

2.333366

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.122392

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.076023

1-sigma variation

Unit

MOID

Value

0.007072

1-sigma variation

Unit

Orbit Period

Value

652.3221

1-sigma variation

Unit

U parameter

Value

8.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.45437E-5	6.20305E-6	4.28891E-5	-3.06827E-5	7.08103E-5	-1.25010E-2
e	6.20305E-6	2.64570E-6	1.82932E-5	-1.30868E-5	3.02054E-5	-5.33183E-3
i	4.28891E-5	1.82932E-5	1.26490E-4	-9.04897E-5	2.08894E-4	-3.68654E-2
Ω	-3.06827E-5	-1.30868E-5	-9.04897E-5	6.47377E-5	-1.49442E-4	2.63733E-2
ω	7.08103E-5	3.02054E-5	2.08894E-4	-1.49442E-4	3.45442E-4	-6.08650E-2
M	-1.25010E-2	-5.33183E-3	-3.68654E-2	2.63733E-2	-6.08650E-2	1.07453E1

Date of computation: 2026-03-17 23:26 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

25.192

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

24 - 50*

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

1521

Unit

Source

[1]

Normalized RMS of residuals

Value

0.496649

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-03-07.326214

Unit

Source

[2]

Last Observation

Value

2022-03-18.20568

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

34 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2022EE4 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1954-09-19 23:03	> 1 mo	0.1162696	0.0144223	2.0692441
EARTH	1956-03-17 20:24	> 1 w	0.0064418	0.0055503	0.1705441
EARTH	1970-09-30 00:07	> 1 w	0.0620704	0.0124347	0.3734086
EARTH	1995-09-22 18:46	> 1 w	0.0783833	0.0131554	0.4641015
EARTH	1997-03-23 15:38	> 1 mo	0.0923363	0.0059080	0.4777989
EARTH	2020-09-18 20:06	> 1 d	0.1268449	0.0143511	0.0477414
EARTH	2022-03-21 07:29	< 1 min	0.0462295	0.0458269	0.0001342
VENUS	2042-01-26 06:29	> 1 mo	0.0366646	0.0217054	0.3829959
EARTH	2045-09-21 05:25	> 1 w	0.0984918	0.0141323	0.4321067
EARTH	2047-03-22 18:15	> 1 w	0.0650497	0.0073004	0.4144041
VENUS	2059-12-03 06:01	> 1 w	0.0214892	0.0213051	0.0181509
EARTH	2070-09-16 01:16	> 1 mo	0.1670100	0.0168206	1.5720809
EARTH	2072-03-18 19:17	> 1 mo	0.0096105	0.0076075	1.1189525
EARTH	2095-10-05 03:05	> 1 mo	0.1451495	0.0148927	31.1479811
EARTH	2104-09-17 01:43	> 1 mo	0.1631864	0.0169825	30.1551107
EARTH	2106-03-22 06:03	> 1 mo	0.0352186	0.0083478	28.6310456

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
303.45985546	75.40018182	0.00691730	MINIMUM
56.88106989	263.47322981	0.01351756	MINIMUM
0.29179636	169.52797341	0.41004909	SADDLE
180.07129220	349.37113359	1.35298937	SADDLE
0.36509589	349.68590724	1.59376391	SADDLE
180.12503918	169.40112015	3.35023457	MAXIMUM

Download:

MOID Plots

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