Asteroids

2022AY6 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.546

Aphelion (Q)

3.689

Eccentricity (e)

0.742

Inclination (i)

0.7

deg

Orbit period (P)

1125.3

Earth MOID

0.00176

U parameter

9.0

Next Earth close approach

Date

2031-07-21

Nominal distance (from Earth center)

0.13265

19843501

Maximum Brightness

24.9

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

26.2

mag

Diameter

15 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-01-13

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

2.117303

1-sigma variation

0.019945

Unit

Eccentricity (e)

Value

0.742160

1-sigma variation

0.002428

Unit

Inclination (i)

Value

0.6985

1-sigma variation

0.0053

Unit

Long. of Ascending Node (Ω)

Value

109.9086

1-sigma variation

0.0932

Unit

Arg. of Perihelion (ω)

Value

100.8516

1-sigma variation

0.0809

Unit

Mean Anomaly (M)

Value

73.35849

1-sigma variation

6.19864

Unit

Perihelion distance

Value

0.545925

1-sigma variation

Unit

Aphelion distance

Value

3.688682

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.125602

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.185612

1-sigma variation

Unit

MOID

Value

0.001765

1-sigma variation

Unit

Orbit Period

Value

1125.3122

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.97791E-4	4.84259E-5	1.63730E-5	1.85523E-3	-1.60259E-3	-1.23630E-1
e	4.84259E-5	5.89608E-6	1.84361E-6	2.26019E-4	-1.95361E-4	-1.50502E-2
i	1.63730E-5	1.84361E-6	2.76256E-5	4.64958E-5	-1.76078E-5	-5.10972E-3
Ω	1.85523E-3	2.26019E-4	4.64958E-5	8.68633E-3	-7.52848E-3	-5.76564E-1
ω	-1.60259E-3	-1.95361E-4	-1.76078E-5	-7.52848E-3	6.54478E-3	4.98032E-1
M	-1.23630E-1	-1.50502E-2	-5.10972E-3	-5.76564E-1	4.98032E-1	3.84232E1

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

26.177

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

15 - 30*

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

0.9

Unit

Source

[1]

Unobserved

Value

1346

Unit

Source

[1]

Normalized RMS of residuals

Value

0.654787

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-01-13.308234

Unit

Source

[2]

Last Observation

Value

2022-01-14.17035

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

24 (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

Close Approaches for 2022AY6 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	1964-01-31 08:23	> 1 mo	0.1738433	0.0025579	0.6523790
EARTH	1976-07-30 08:23	> 1 mo	0.0680805	0.0044177	2.7332018
EARTH	2022-01-17 20:50	18.2	0.0032047	0.0031537	0.0000170
EARTH	2031-07-21 05:03	> 1 mo	0.1326456	0.0035332	0.7923045
VENUS	2043-11-03 17:07	> 1 mo	0.0204093	0.0158827	0.8955297
EARTH	2056-01-17 08:54	> 1 mo	0.0630374	0.0017315	2.6283883
EARTH	2065-08-01 23:41	> 1 mo	0.0905773	0.0037618	1.0470201
EARTH	2090-01-16 16:03	> 1 mo	0.0397105	0.0011758	4.2812028
EARTH	2102-08-10 22:55	> 1 mo	0.1970838	0.0032055	4.3130995

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
316.15031102	15.69013789	0.00180288	MINIMUM
45.43685241	203.74995051	0.00342389	MINIMUM
1.45181871	110.69926628	0.45938391	SADDLE
1.43795050	290.68152813	1.54039198	SADDLE
180.21508029	288.85907962	2.69479437	SADDLE
180.21824428	108.86282707	4.69435304	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2022AY6

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2084-01-19.151	82243.151	-2.671	0.000	0.26 ± 0.416	7.58E5	2.92E-8	6.06E-1	-7.96	0


Based on 24 optical observations (of which 1 are rejected as outliers) from 2022/01/13.308 to 2022/01/14.170.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.11 and 1.11 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: