Asteroids

2022AY5 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.902

Aphelion (Q)

2.250

Eccentricity (e)

0.428

Inclination (i)

0.8

deg

Orbit period (P)

722.8

Earth MOID

0.00020

U parameter

7.4

Next Earth close approach

Date

2025-10-14

Nominal distance (from Earth center)

0.01937

2897989

Maximum Brightness

24.7

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

29.1

mag

Diameter

4 - 9*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-01-11

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

1.576168

1-sigma variation

0.000620

Unit

Eccentricity (e)

Value

0.427770

1-sigma variation

0.000215

Unit

Inclination (i)

Value

0.8360

1-sigma variation

0.0004

Unit

Long. of Ascending Node (Ω)

Value

288.5864

1-sigma variation

1.3230

Unit

Arg. of Perihelion (ω)

Value

137.2517

1-sigma variation

1.3372

Unit

Mean Anomaly (M)

Value

1.13499

1-sigma variation

0.23427

Unit

Perihelion distance

Value

0.901931

1-sigma variation

Unit

Aphelion distance

Value

2.250405

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.856849

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.003027

1-sigma variation

Unit

MOID

Value

0.000200

1-sigma variation

Unit

Orbit Period

Value

722.7734

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.84312E-7	1.33521E-7	2.53633E-7	8.20193E-4	-8.28968E-4	-1.45231E-4
e	1.33521E-7	4.63907E-8	8.80408E-8	2.84959E-4	-2.88008E-4	-5.04573E-5
i	2.53633E-7	8.80408E-8	1.72858E-7	5.41325E-4	-5.47087E-4	-9.58698E-5
Ω	8.20193E-4	2.84959E-4	5.41325E-4	1.75044E0	-1.76917E0	-3.09951E-1
ω	-8.28968E-4	-2.88008E-4	-5.47087E-4	-1.76917E0	1.78810E0	3.13267E-1
M	-1.45231E-4	-5.04573E-5	-9.58698E-5	-3.09951E-1	3.13267E-1	5.48830E-2

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

29.117

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

4 - 9*

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

1.0

Unit

Source

[1]

Unobserved

Value

1342

Unit

Source

[1]

Normalized RMS of residuals

Value

0.429827

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-01-11.05135

Unit

Source

[2]

Last Observation

Value

2022-01-12.019719

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

29 (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 2022AY5 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	1959-11-24 18:28	> 1 mo	0.0970168	0.0082313	5.7729798
EARTH	1970-12-18 22:01	> 1 mo	0.0729923	0.0001533	31.5443941
EARTH	1982-01-05 01:19	> 1 mo	0.0212505	0.0002519	4.9587160
MARS	1985-12-26 20:38	> 1 mo	0.0416662	0.0326097	2.1834316
EARTH	1992-11-14 05:56	> 1 mo	0.0964763	0.0077735	0.3636457
EARTH	2003-10-01 05:09	> 1 d	0.0068976	0.0021478	0.0329821
EARTH	2012-11-19 03:41	> 1 w	0.0999054	0.0981324	0.0005915
EARTH	2022-01-10 10:34	< 1 min	0.0006831	0.0006823	0.0000003
EARTH	2023-11-28 18:12	> 1 d	0.0856749	0.0851913	0.0001619
EARTH	2025-10-14 10:31	> 1 d	0.0193719	0.0145349	0.0046514
EARTH	2027-09-29 16:09	> 1 d	0.1170054	0.0720131	0.0150717
EARTH	2103-01-25 11:47	> 1 w	0.1240046	0.0016479	0.1978571
EARTH	2105-01-10 07:01	> 1 w	0.0076160	0.0005380	0.1565390
EARTH	2106-10-26 12:32	> 1 mo	0.0540970	0.0153078	1.6103197
EARTH	2108-09-24 23:07	> 1 mo	0.1813680	0.0151671	4.8750956

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
28.62879927	7.49872475	0.00046831	MINIMUM
328.97196647	277.36276782	0.01454944	MINIMUM
358.51509124	322.04426766	0.08585072	SADDLE
179.45351553	143.15812833	1.23294805	SADDLE
358.63014076	142.23945917	1.91458406	SADDLE
179.48214737	323.18294578	3.23266320	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2022AY5

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2109-01-11.662	91366.662	2.757	0.000	1.57 ± 0.025	3.52E6	2.05E-9	3.81E-3	-11.02	0


Based on 29 optical observations (of which 0 are rejected as outliers) from 2022/01/11.051 to 2022/01/12.020.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.62 and 1.62 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: