Asteroids

2023XY4 help

Last update: 2026-06-07 13:16 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.619

Aphelion (Q)

2.405

Eccentricity (e)

0.591

Inclination (i)

12.8

deg

Orbit period (P)

678.8

Earth MOID

0.03623

U parameter

8.4

Next Earth close approach

Date

2036-11-25

Nominal distance (from Earth center)

0.10187

15239474

Maximum Brightness

20.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

110 - 240*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-12-06

Observatory

PASTIS Observatory, Banon

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.511507

1-sigma variation

0.002664

Unit

Eccentricity (e)

Value

0.590797

1-sigma variation

0.000873

Unit

Inclination (i)

Value

12.8098

1-sigma variation

0.0137

Unit

Long. of Ascending Node (Ω)

Value

47.3615

1-sigma variation

0.0095

Unit

Arg. of Perihelion (ω)

Value

282.4152

1-sigma variation

0.0215

Unit

Mean Anomaly (M)

Value

157.69468

1-sigma variation

1.38842

Unit

Perihelion distance

Value

0.618513

1-sigma variation

Unit

Aphelion distance

Value

2.404501

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.118005

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.118261

1-sigma variation

Unit

MOID

Value

0.036233

1-sigma variation

Unit

Orbit Period

Value

678.7561

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.09946E-6	2.32631E-6	3.64546E-5	-2.51664E-5	5.70006E-5	-3.69943E-3
e	2.32631E-6	7.62319E-7	1.19481E-5	-8.23980E-6	1.86647E-5	-1.21221E-3
i	3.64546E-5	1.19481E-5	1.87366E-4	-1.28821E-4	2.91918E-4	-1.89960E-2
Ω	-2.51664E-5	-8.23980E-6	-1.28821E-4	9.01423E-5	-2.03811E-4	1.31137E-2
ω	5.70006E-5	1.86647E-5	2.91918E-4	-2.03811E-4	4.61044E-4	-2.97019E-2
M	-3.69943E-3	-1.21221E-3	-1.89960E-2	1.31137E-2	-2.97019E-2	1.92772E0

Date of computation: 2026-06-07 13:16 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

21.999

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

110 - 240*

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

902

Unit

Source

[1]

Normalized RMS of residuals

Value

0.660147

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-12-04.099913

Unit

Source

[2]

Last Observation

Value

2023-12-18.84089

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

43 (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

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 2023XY4 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	1962-05-12 05:53	> 1 d	0.0948769	0.0305186	0.0974591
EARTH	1975-05-13 07:59	> 1 d	0.0813511	0.0325682	0.0752787
EARTH	1988-05-12 04:19	> 1 w	0.0917821	0.0329472	0.2027322
EARTH	1997-11-29 15:10	> 1 w	0.1771426	0.0474157	0.2333858
EARTH	2001-05-08 01:57	> 1 w	0.1812212	0.0318616	0.2378060
VENUS	2005-04-07 00:19	> 1 w	0.0442192	0.0299372	0.1829987
VENUS	2007-02-14 05:54	> 1 w	0.0377265	0.0306025	0.1431482
EARTH	2010-11-24 03:39	> 1 w	0.0737336	0.0451585	0.1640973
EARTH	2023-11-24 14:36	< 1 min	0.0763745	0.0760461	0.0001095
EARTH	2036-11-25 11:18	> 1 w	0.1018696	0.0468712	0.1902776
EARTH	2049-11-27 14:27	> 1 w	0.1338898	0.0485326	0.3329390
EARTH	2053-05-08 10:23	> 1 w	0.1851700	0.0355753	0.3620727
EARTH	2062-11-30 06:31	> 1 w	0.1768695	0.0510717	0.3891618
EARTH	2066-05-10 22:59	> 1 w	0.1403545	0.0372794	0.3837993
EARTH	2079-05-13 23:12	> 1 w	0.0879310	0.0388946	0.2794024
EARTH	2092-05-13 18:58	> 1 d	0.0789519	0.0393217	0.0509942
VENUS	2101-11-09 06:22	> 1 w	0.0323391	0.0273569	0.0827606
EARTH	2105-05-11 06:23	> 1 w	0.1548842	0.0398816	0.2309597
EARTH	2114-11-30 16:30	> 1 w	0.1602611	0.0540291	0.3203759
EARTH	2118-05-10 14:54	> 1 w	0.1766953	0.0401280	0.3262999

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
303.20247344	130.78462248	0.03623253	MINIMUM
52.82920765	314.60197484	0.04546639	MINIMUM
357.13766911	220.94867005	0.43056865	SADDLE
179.08554639	44.91696754	1.45545682	SADDLE
358.16355644	43.03593669	1.59752305	SADDLE
179.85034801	225.30516381	3.39935228	MAXIMUM

Download:

MOID Plots

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