Asteroids

2023WC2 help

Last update: 2025-02-19 13:28 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

1.006

Aphelion (Q)

2.429

Eccentricity (e)

0.414

Inclination (i)

7.4

deg

Orbit period (P)

822.0

Earth MOID

0.01827

U parameter

7.7

Next Earth close approach

Date

2032-11-20

Nominal distance (from Earth center)

0.02029

3036079

Maximum Brightness

17.6

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

27 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-11-21

Observatory

ATLAS-HKO, 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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.717260

1-sigma variation

0.001338

Unit

Eccentricity (e)

Value

0.414458

1-sigma variation

0.000445

Unit

Inclination (i)

Value

7.4402

1-sigma variation

0.0061

Unit

Long. of Ascending Node (Ω)

Value

240.4801

1-sigma variation

0.0010

Unit

Arg. of Perihelion (ω)

Value

183.1112

1-sigma variation

0.0024

Unit

Mean Anomaly (M)

Value

230.74949

1-sigma variation

0.26858

Unit

Perihelion distance

Value

1.005528

1-sigma variation

Unit

Aphelion distance

Value

2.428992

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.414459

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.018291

1-sigma variation

Unit

MOID

Value

0.018272

1-sigma variation

Unit

Orbit Period

Value

821.9634

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.79009E-6	5.95965E-7	8.11776E-6	1.29840E-6	-3.17033E-6	-3.59348E-4
e	5.95965E-7	1.98412E-7	2.70261E-6	4.32268E-7	-1.05547E-6	-1.19636E-4
i	8.11776E-6	2.70261E-6	3.68134E-5	5.88788E-6	-1.43751E-5	-1.62959E-3
Ω	1.29840E-6	4.32268E-7	5.88788E-6	9.41859E-7	-2.30039E-6	-2.60644E-4
ω	-3.17033E-6	-1.05547E-6	-1.43751E-5	-2.30039E-6	5.62765E-6	6.36417E-4
M	-3.59348E-4	-1.19636E-4	-1.62959E-3	-2.60644E-4	6.36417E-4	7.21366E-2

Date of computation: 2025-02-19 13:28 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

25.001

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

27 - 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

533

Unit

Source

[1]

Normalized RMS of residuals

Value

0.658566

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-11-02.19495

Unit

Source

[2]

Last Observation

Value

2023-11-23.092046

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

36 (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 2023WC2 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	1953-11-24 04:05	> 1 mo	0.0184588	0.0178420	0.0232959
EARTH	1962-12-18 16:22	> 1 w	0.1177427	0.0216951	0.2234608
EARTH	2014-10-22 18:05	> 1 d	0.1657357	0.0338530	0.0617045
EARTH	2023-11-19 23:36	< 1 min	0.0220386	0.0219755	0.0000210
EARTH	2032-11-20 16:41	> 1 w	0.0202949	0.0182487	0.0201184
EARTH	2041-10-29 13:49	> 1 mo	0.1132896	0.0190279	0.6390372
EARTH	2097-12-27 15:51	> 1 mo	0.1819732	0.0415400	1.4334682
EARTH	2106-12-05 11:51	> 1 mo	0.0430412	0.0076177	0.8296555
EARTH	2115-12-03 10:24	> 1 mo	0.0358833	0.0122046	0.7583078
EARTH	2124-12-26 06:50	> 1 mo	0.1584495	0.0375032	1.5888397

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
358.18784653	319.50929195	0.01885074	MINIMUM
179.51647798	141.11709558	1.41593636	SADDLE
358.64976858	140.22811690	2.01803236	SADDLE
179.42976269	321.06818537	3.41510910	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out