Asteroids

2022WW help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.998

Aphelion (Q)

2.351

Eccentricity (e)

0.404

Inclination (i)

1.5

deg

Orbit period (P)

791.6

Earth MOID

0.02932

U parameter

6.6

Next Earth close approach

Date

2035-12-15

Nominal distance (from Earth center)

0.0379

5670446

Maximum Brightness

19.9

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

2022-11-16

Observatory

Pan-STARRS 1, Haleakala

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

1.674672

1-sigma variation

0.000244

Unit

Eccentricity (e)

Value

0.404125

1-sigma variation

0.000085

Unit

Inclination (i)

Value

1.4880

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

194.3404

1-sigma variation

0.0013

Unit

Arg. of Perihelion (ω)

Value

265.4119

1-sigma variation

0.0011

Unit

Mean Anomaly (M)

Value

121.75628

1-sigma variation

0.10560

Unit

Perihelion distance

Value

0.997894

1-sigma variation

Unit

Aphelion distance

Value

2.351449

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.446988

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.357232

1-sigma variation

Unit

MOID

Value

0.029321

1-sigma variation

Unit

Orbit Period

Value

791.5767

1-sigma variation

Unit

U parameter

Value

6.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.97021E-8	2.08076E-8	7.13181E-8	3.24318E-7	-2.62372E-7	-2.58016E-5
e	2.08076E-8	7.25193E-9	2.48559E-8	1.13029E-7	-9.14373E-8	-8.99246E-6
i	7.13181E-8	2.48559E-8	8.52126E-8	3.88118E-7	-3.14170E-7	-3.08217E-5
Ω	3.24318E-7	1.13029E-7	3.88118E-7	1.79708E-6	-1.46320E-6	-1.40160E-4
ω	-2.62372E-7	-9.14373E-8	-3.14170E-7	-1.46320E-6	1.19513E-6	1.13388E-4
M	-2.58016E-5	-8.99246E-6	-3.08217E-5	-1.40160E-4	1.13388E-4	1.11507E-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

25.205

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

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

[-]

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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

1001

Unit

Source

[1]

Normalized RMS of residuals

Value

0.682774

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-11-01.354763

Unit

Source

[2]

Last Observation

Value

2022-12-21.31071

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

35 (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 2022WW 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	1960-01-16 18:55	> 1 d	0.0393393	0.0263232	0.0099272
EARTH	1973-01-22 12:28	> 1 w	0.0537833	0.0264145	0.0254051
EARTH	2022-12-10 02:15	< 1 min	0.0490601	0.0490313	0.0000096
EARTH	2035-12-15 16:14	> 1 d	0.0379046	0.0263027	0.0072897
EARTH	2048-11-20 06:08	> 1 d	0.1900790	0.0282654	0.0572926
EARTH	2090-01-22 16:59	> 1 w	0.0495893	0.0263013	0.0457249
EARTH	2103-01-18 07:54	> 1 d	0.0370263	0.0261716	0.0090313
EARTH	2116-02-13 13:30	> 1 w	0.1954666	0.0242537	0.1583780

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
359.29479824	356.48050648	0.02918932	MINIMUM
179.96486758	177.46583695	1.33566668	SADDLE
359.90591967	177.40532976	2.01390652	SADDLE
179.95869102	357.46236339	3.33479029	MAXIMUM

Download:

MOID Plots

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