Asteroids

2023CX1 help

Last update: 2026-07-30 14:25 UTC

Orbital Properties

Epoch

59988.1

MJD

Orbit type

Apollo

Perihelion (q)

0.914

Aphelion (Q)

2.602

Eccentricity (e)

0.480

Inclination (i)

3.8

deg

Orbit period (P)

851.7

Earth MOID

0.00003

U parameter

4.6

Next Earth close approach

Date

Nominal distance (from Earth center)

Maximum Brightness

mag

Risk

Object impacted Earth on 2023-02-13 02:59:22

Physical Properties

Absolute Magnitude (H)

32.7

mag

Diameter

0.8 - 1.7*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-02-12

Observatory

GINOP-KHK, Piszkesteto

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

59988.0776

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.758374

1-sigma variation

0.000013

Unit

Eccentricity (e)

Value

0.479957

1-sigma variation

0.000004

Unit

Inclination (i)

Value

3.7869

1-sigma variation

3.187E-5

Unit

Long. of Ascending Node (Ω)

Value

323.8261

1-sigma variation

5.136E-7

Unit

Arg. of Perihelion (ω)

Value

219.4064

1-sigma variation

3.963E-5

Unit

Mean Anomaly (M)

Value

347.17582

1-sigma variation

0.00016

Unit

Perihelion distance

Value

0.914430

1-sigma variation

Unit

Aphelion distance

Value

2.602318

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.139014

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.000104

1-sigma variation

Unit

MOID

Value

0.000028

1-sigma variation

Unit

Orbit Period

Value

851.6581

1-sigma variation

Unit

U parameter

Value

4.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.66895E-10	5.33040E-11	4.06440E-10	-6.54907E-12	4.16652E-10	2.00252E-9
e	5.33040E-11	1.70270E-11	1.29933E-10	-2.09054E-12	1.34209E-10	6.39269E-10
i	4.06440E-10	1.29933E-10	1.01581E-9	-1.59914E-11	1.07133E-9	4.86128E-9
Ω	-6.54907E-12	-2.09054E-12	-1.59914E-11	2.63761E-13	-1.58157E-11	-7.87287E-11
ω	4.16652E-10	1.34209E-10	1.07133E-9	-1.58157E-11	1.57023E-9	4.85432E-9
M	2.00252E-9	6.39269E-10	4.86128E-9	-7.87287E-11	4.85432E-9	2.40674E-8

Date of computation: 2026-07-30 14:25 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

32.729

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

0.8 - 1.7*

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

0.3

Unit

Source

[1]

Unobserved

Value

1308

Unit

Source

[1]

Normalized RMS of residuals

Value

0.622579

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-02-12.845917

Unit

Source

[2]

Last Observation

Value

2023-02-13.119614

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

368 (20)

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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2023CX1 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1971-02-03 18:37	295.9	0.0709031	0.0644471	0.0021521
EARTH	1973-05-19 11:27	270.3	0.1192233	0.1134869	0.0019297
EARTH	1998-04-15 01:36	776.5	0.0797446	0.0786178	0.0003835
EARTH	2023-02-13 03:06	< 1 s	0.0000234	0.0000234	0.0000000

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
335.52261916	41.14946263	0.00002991	MINIMUM
27.47867104	123.57143489	0.06236472	MINIMUM
4.91923281	87.75615617	0.08958912	SADDLE
180.91046632	261.72200573	1.45169041	SADDLE
2.16100857	263.25653659	1.92000330	SADDLE
180.69845265	81.59025714	3.44938682	MAXIMUM

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MOID Plots

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