Asteroids

2022WE5 help

Last update: 2024-04-19 14:36 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.907

Aphelion (Q)

2.142

Eccentricity (e)

0.405

Inclination (i)

1.0

deg

Orbit period (P)

687.6

Earth MOID

0.00098

U parameter

7.1

Next Earth close approach

Date

2038-03-08

Nominal distance (from Earth center)

0.06726

10061437

Maximum Brightness

24.2

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

27.5

mag

Diameter

8 - 19*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-11-24

Observatory

Kitt Peak-Bok

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.524567

1-sigma variation

0.000439

Unit

Eccentricity (e)

Value

0.404926

1-sigma variation

0.000189

Unit

Inclination (i)

Value

0.9584

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

253.0569

1-sigma variation

0.0006

Unit

Arg. of Perihelion (ω)

Value

220.3105

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

236.22488

1-sigma variation

0.10052

Unit

Perihelion distance

Value

0.907229

1-sigma variation

Unit

Aphelion distance

Value

2.141904

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.832430

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.011613

1-sigma variation

Unit

MOID

Value

0.000979

1-sigma variation

Unit

Orbit Period

Value

687.5717

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.92987E-7	8.28276E-8	1.52349E-7	2.79460E-7	-1.62398E-7	-4.41592E-5
e	8.28276E-8	3.55487E-8	6.53878E-8	1.19932E-7	-6.96560E-8	-1.89526E-5
i	1.52349E-7	6.53878E-8	1.20405E-7	2.19385E-7	-1.26470E-7	-3.48607E-5
Ω	2.79460E-7	1.19932E-7	2.19385E-7	4.16391E-7	-2.50059E-7	-6.39448E-5
ω	-1.62398E-7	-6.96560E-8	-1.26470E-7	-2.50059E-7	1.67882E-7	3.71546E-5
M	-4.41592E-5	-1.89526E-5	-3.48607E-5	-6.39448E-5	3.71546E-5	1.01045E-2

Date of computation: 2024-02-21 14:29 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

27.494

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

8 - 19*

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
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

506

Unit

Source

[1]

Normalized RMS of residuals

Value

0.548346

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-11-24.334672

Unit

Source

[2]

Last Observation

Value

2022-11-30.384144

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

46 (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 2022WE5 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1962-02-25 01:33	> 1 mo	0.0161345	0.0161012	0.0140074
EARTH	1982-12-24 13:46	> 1 mo	0.0618466	0.0063772	0.3416912
EARTH	2003-11-28 03:01	> 1 d	0.0266418	0.0012480	0.0479026
EARTH	2022-11-30 13:10	< 1 s	0.0104044	0.0103909	0.0000045
EARTH	2038-03-08 00:03	> 1 d	0.0672566	0.0166261	0.0381191
EARTH	2055-01-23 05:28	> 1 d	0.0749204	0.0698087	0.0017235
EARTH	2071-11-27 23:10	> 1 d	0.0332812	0.0008588	0.0493807
EARTH	2087-01-27 21:28	> 1 mo	0.0727102	0.0274730	0.0843030
EARTH	2102-03-10 21:58	> 1 mo	0.0795191	0.0166499	0.4543521
EARTH	2118-11-27 22:58	> 1 w	0.0436788	0.0006540	0.2225958

Download as:

2022WE5

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2084-12-02.089	82561.089	-1.966	1.59 ± 0.000	3.66E4	1.93E-6	6.36E-8	-7.17
2088-12-02.475	84022.475	-1.157	1.27 ± 0.005	2.14E3	2.15E-4	7.13E-6	-5.14
2090-12-02.653	84752.653	-1.253	1.40 ± 0.006	1.02E6	3.45E-7	1.14E-8	-7.95
2095-12-03.114	86579.114	-1.144	1.38 ± 0.006	5.37E6	7.80E-8	2.58E-9	-8.63
2097-12-02.632	87309.632	-1.163	0.86 ± 0.000	3.55E7	1.76E-8	5.83E-10	-9.29
2111-12-04.415	92423.415	-1.142	0.64 ± 0.022	1.23E7	5.46E-8	1.81E-9	-8.87
2112-12-03.652	92788.652	-1.164	1.27 ± 0.045	5.58E7	8.22E-9	2.72E-10	-9.70
2113-12-03.643	93153.643	-1.154	1.23 ± 0.110	1.89E8	2.59E-9	8.58E-11	-10.20
2118-12-03.958	94979.958	2.800	1.57 ± 0.000	1.03E4	1.37E-6	4.56E-8	-7.50
2119-12-04.841	95345.841	-0.415	1.01 ± 0.000	2.43E6	4.15E-7	1.37E-8	-8.02
2120-12-03.861	95710.861	-0.436	1.69 ± 0.001	3.95E6	1.32E-7	4.38E-9	-8.54


Based on 46 optical observations (of which 0 are rejected as outliers) from 2022/11/24.335 to 2022/11/30.384.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.70 and 1.71 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20240110 090433.228 UTC.

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