Asteroids

2023WA help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.686

Aphelion (Q)

3.041

Eccentricity (e)

0.632

Inclination (i)

2.3

deg

Orbit period (P)

929.4

Earth MOID

0.00006

U parameter

6.5

Next Earth close approach

Date

2034-04-26

Nominal distance (from Earth center)

0.05709

8540985

Maximum Brightness

25.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.5

mag

Diameter

5 - 12*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-11-16

Observatory

ATLAS Chile, Rio Hurtado

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

1.863752

1-sigma variation

0.000304

Unit

Eccentricity (e)

Value

0.631817

1-sigma variation

0.000085

Unit

Inclination (i)

Value

2.3232

1-sigma variation

0.0011

Unit

Long. of Ascending Node (Ω)

Value

54.0726

1-sigma variation

2.005E-5

Unit

Arg. of Perihelion (ω)

Value

77.9310

1-sigma variation

0.0034

Unit

Mean Anomaly (M)

Value

266.80287

1-sigma variation

0.06473

Unit

Perihelion distance

Value

0.686203

1-sigma variation

Unit

Aphelion distance

Value

3.041301

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.000787

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.276667

1-sigma variation

Unit

MOID

Value

0.000060

1-sigma variation

Unit

Orbit Period

Value

929.3528

1-sigma variation

Unit

U parameter

Value

6.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.24844E-8	2.59187E-8	3.30042E-7	5.96570E-9	1.00821E-6	-1.96839E-5
e	2.59187E-8	7.27244E-9	9.30722E-8	1.68117E-9	2.84648E-7	-5.51655E-6
i	3.30042E-7	9.30722E-8	1.21682E-6	2.19637E-8	3.73665E-6	-7.02535E-5
Ω	5.96570E-9	1.68117E-9	2.19637E-8	4.02082E-10	6.72582E-8	-1.26985E-6
ω	1.00821E-6	2.84648E-7	3.73665E-6	6.72582E-8	1.14942E-5	-2.14616E-4
M	-1.96839E-5	-5.51655E-6	-7.02535E-5	-1.26985E-6	-2.14616E-4	4.18944E-3

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

28.522

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

5 - 12*

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

0.9

Unit

Source

[1]

Unobserved

Value

706

Unit

Source

[1]

Normalized RMS of residuals

Value

0.310324

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-11-16.216892

Unit

Source

[2]

Last Observation

Value

2023-11-17.081741

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

33 (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 2023WA 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
VENUS	1963-07-22 05:50	> 1 mo	0.0274079	0.0196184	0.2464523
VENUS	1985-11-05 20:09	> 1 d	0.0140443	0.0008686	0.0105917
EARTH	2017-11-06 17:56	485.9	0.1809398	0.1597778	0.0070540
EARTH	2019-11-10 16:41	399.1	0.1138273	0.0976623	0.0053884
EARTH	2021-11-14 01:39	274.9	0.0423337	0.0322317	0.0033673
EARTH	2023-11-17 03:40	< 1 s	0.0001830	0.0001829	0.0000000
EARTH	2034-04-26 02:59	1382.9	0.0570930	0.0173836	0.0148739
VENUS	2039-03-29 07:58	> 1 d	0.0036215	0.0028655	0.0075859
MARS	2052-02-25 13:17	> 1 mo	0.0057188	0.0012918	0.8204018
EARTH	2066-11-14 02:33	> 1 mo	0.0507050	0.0022321	6.7700124
EARTH	2071-12-04 08:27	> 1 w	0.1610230	0.0115459	0.1049990
EARTH	2092-04-17 22:38	> 1 mo	0.0664496	0.0116431	24.4511598
EARTH	2097-05-01 05:08	> 1 mo	0.1321781	0.0117799	11.9583913

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
317.99717307	312.57439209	0.00007912	MINIMUM
43.23816481	108.56384809	0.01554500	MINIMUM
0.91976776	30.99340565	0.30118684	SADDLE
0.88395759	210.90022788	1.70016756	SADDLE
180.20303924	210.00146471	2.02849334	SADDLE
180.18038760	29.98626970	4.02658983	MAXIMUM

Download:

MOID Plots

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