Asteroids

2022WS9 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.843

Aphelion (Q)

4.651

Eccentricity (e)

0.693

Inclination (i)

19.8

deg

Orbit period (P)

1663.1

Earth MOID

0.01029

U parameter

7.8

Next Earth close approach

Date

2113-11-22

Nominal distance (from Earth center)

0.08601

12866893

Maximum Brightness

22.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

26 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-11-29

Observatory

ATLAS South Africa, Sutherland

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

2.747115

1-sigma variation

0.005353

Unit

Eccentricity (e)

Value

0.693074

1-sigma variation

0.000616

Unit

Inclination (i)

Value

19.7895

1-sigma variation

0.0116

Unit

Long. of Ascending Node (Ω)

Value

67.4864

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

52.1565

1-sigma variation

0.0041

Unit

Mean Anomaly (M)

Value

227.40808

1-sigma variation

0.66234

Unit

Perihelion distance

Value

0.843161

1-sigma variation

Unit

Aphelion distance

Value

4.651069

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.015311

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.468046

1-sigma variation

Unit

MOID

Value

0.010286

1-sigma variation

Unit

Orbit Period

Value

1663.0819

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.86581E-5	3.30020E-6	6.23380E-5	-7.19604E-7	-2.18115E-5	-3.54574E-3
e	3.30020E-6	3.80044E-7	7.17866E-6	-8.28670E-8	-2.51160E-6	-4.08319E-4
i	6.23380E-5	7.17866E-6	1.35621E-4	-1.56555E-6	-4.74612E-5	-7.71279E-3
Ω	-7.19604E-7	-8.28670E-8	-1.56555E-6	1.80794E-8	5.48056E-7	8.90332E-5
ω	-2.18115E-5	-2.51160E-6	-4.74612E-5	5.48056E-7	1.66740E-5	2.69863E-3
M	-3.54574E-3	-4.08319E-4	-7.71279E-3	8.90332E-5	2.69863E-3	4.38697E-1

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

25.042

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

26 - 60*

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

1022

Unit

Source

[1]

Normalized RMS of residuals

Value

0.400312

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-11-28.30002

Unit

Source

[2]

Last Observation

Value

2022-12-01.07551

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

37 (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 2022WS9 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	1981-12-10 19:43	> 1 mo	0.0775658	0.0056401	0.6150299
EARTH	2022-12-01 12:35	< 1 s	0.0116903	0.0116656	0.0000082
EARTH	2113-11-22 18:58	> 1 mo	0.0860099	0.0117961	1.0880380

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
337.11805654	326.99667872	0.01043838	MINIMUM
25.31766835	73.13674964	0.33184574	MINIMUM
16.35378267	53.78931305	0.33554150	SADDLE
2.23230295	200.62080930	1.84093359	SADDLE
181.00400446	196.18947494	3.68283400	SADDLE
179.44927085	15.51425174	5.60588834	MAXIMUM

Download:

MOID Plots

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