Asteroids

2022WH2

Last update: 2022-11-27 09:04 UTC

Orbital Properties

Epoch

60000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.009

Aphelion (Q)

2.595

Eccentricity (e)

0.440

Inclination (i)

6.5

deg

Orbit period (P)

883.5

Earth MOID

0.01881

U parameter

8.0

Next Earth close approach

Date

2051-12-18

Nominal distance (from Earth center)

0.17838

26685613

Maximum Brightness

24.7

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

22*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-11-19

Observatory

Mt. Lemmon Survey

Orbit Visualiser

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External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion
Aphelion
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

60000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.801944

1-sigma variation

0.002389

Unit

Eccentricity (e)

Value

0.440296

1-sigma variation

0.000726

Unit

Inclination (i)

Value

6.5499

1-sigma variation

0.0083

Unit

Ascending Node (Ω)

Value

234.7643

1-sigma variation

0.0025

Unit

Arg. of Perihelion (ω)

Value

178.7203

1-sigma variation

0.0025

Unit

Mean Anomaly (M)

Value

40.25296

1-sigma variation

0.07938

Unit

Perihelion

Value

1.008556

1-sigma variation

Unit

Aphelion

Value

2.595333

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.583857

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.019000

1-sigma variation

Unit

MOID

Value

0.018805

1-sigma variation

Unit

Orbit Period

Value

883.5080

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.70763E-6	1.73336E-6	1.97810E-5	-5.91536E-6	-5.79248E-6	-1.89647E-4
e	1.73336E-6	5.26407E-7	6.00732E-6	-1.79645E-6	-1.75911E-6	-5.75943E-5
i	1.97810E-5	6.00732E-6	6.85657E-5	-2.05013E-5	-2.01122E-5	-6.57250E-4
Ω	-5.91536E-6	-1.79645E-6	-2.05013E-5	6.13088E-6	6.00514E-6	1.96549E-4
ω	-5.79248E-6	-1.75911E-6	-2.01122E-5	6.00514E-6	6.03781E-6	1.92412E-4
M	-1.89647E-4	-5.75943E-5	-6.57250E-4	1.96549E-4	1.92412E-4	6.30142E-3

Date of computation: 2022-11-25 13:13 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

25.996

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

22*

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 ODIM	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

0.803833

Unit

arcsec

Source

[1]

First Observation

Value

2022-11-19.139694

Unit

Source

[2]

Last Observation

Value

2022-11-25.188867

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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2022WH2 from 1950 to 2122

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1969-10-23 23:49	> 1 mo	0.0805570	0.0187953	1.1767117
EARTH	1981-11-20 22:02	> 1 mo	0.0242113	0.0181303	0.2068903
EARTH	2022-11-24 06:39	< 1 min	0.0325537	0.0324085	0.0000483
EARTH	2051-12-18 18:04	> 1 w	0.1783823	0.0204875	0.3243451
EARTH	2068-10-15 23:04	> 1 mo	0.1344076	0.0200515	0.3075420
EARTH	2097-11-03 14:44	> 1 w	0.0450850	0.0200824	0.0779826

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