Asteroids

2022EF3 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

1.011

Aphelion (Q)

4.144

Eccentricity (e)

0.608

Inclination (i)

10.7

deg

Orbit period (P)

1511.4

Earth MOID

0.01851

U parameter

8.1

Next Earth close approach

Date

2055-04-02

Nominal distance (from Earth center)

0.10901

16307048

Maximum Brightness

25.6

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

8 - 17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-03-07

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.577489

1-sigma variation

0.006036

Unit

Eccentricity (e)

Value

0.607820

1-sigma variation

0.000929

Unit

Inclination (i)

Value

10.7205

1-sigma variation

0.0110

Unit

Long. of Ascending Node (Ω)

Value

166.9800

1-sigma variation

0.0009

Unit

Arg. of Perihelion (ω)

Value

0.9929

1-sigma variation

0.0017

Unit

Mean Anomaly (M)

Value

10.35391

1-sigma variation

1.31257

Unit

Perihelion distance

Value

1.010840

1-sigma variation

Unit

Aphelion distance

Value

4.144137

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.018615

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

3.135559

1-sigma variation

Unit

MOID

Value

0.018514

1-sigma variation

Unit

Orbit Period

Value

1511.4491

1-sigma variation

Unit

U parameter

Value

8.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.64312E-5	5.60809E-6	6.66869E-5	5.63087E-6	9.26141E-6	-7.92246E-3
e	5.60809E-6	8.63291E-7	1.02656E-5	8.66797E-7	1.42561E-6	-1.21956E-3
i	6.66869E-5	1.02656E-5	1.22077E-4	1.03076E-5	1.69882E-5	-1.45020E-2
Ω	5.63087E-6	8.66797E-7	1.03076E-5	8.70347E-7	1.43317E-6	-1.22451E-3
ω	9.26141E-6	1.42561E-6	1.69882E-5	1.43317E-6	2.80297E-6	-2.01410E-3
M	-7.92246E-3	-1.21956E-3	-1.45020E-2	-1.22451E-3	-2.01410E-3	1.72285E0

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

27.71

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

8 - 17*

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

[-]

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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

1531

Unit

Source

[1]

Normalized RMS of residuals

Value

0.544446

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-03-07.317634

Unit

Source

[2]

Last Observation

Value

2022-03-09.385949

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

32 (2)

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 2022EF3 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	2022-03-07 06:02	< 1 min	0.0185872	0.0185168	0.0000235
EARTH	2055-04-02 06:08	> 1 mo	0.1090059	0.0370238	0.5358280
52 Europa	2090-12-14 20:14	> 1 d	0.0163582	0.0051444	0.0254761
EARTH	2108-03-01 09:55	> 1 w	0.0358166	0.0099919	0.0615504

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
359.76546889	65.30421029	0.01720965	MINIMUM
1.25706363	248.24001802	2.01809164	SADDLE
180.30143386	247.02432899	3.13632139	SADDLE
180.27105121	67.00657739	5.13776528	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2022EF3

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2088-03-06.261	83751.261	1.401	0.000	1.08 ± 0.016	5.67E3	5.28E-5	3.26E-2	-5.74	0


Based on 32 optical observations (of which 2 are rejected as outliers) from 2022/03/07.318 to 2022/03/09.386.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.47 and 1.47 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
AstOD software version= 4.0, Date of computation=20250805 130500.123 UTC.

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Download Impactor Table as: