Asteroids

2023SB help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.022

Aphelion (Q)

2.848

Eccentricity (e)

0.472

Inclination (i)

2.2

deg

Orbit period (P)

982.9

Earth MOID

0.01737

U parameter

7.5

Next Earth close approach

Date

2058-08-24

Nominal distance (from Earth center)

0.06322

9457270

Maximum Brightness

22.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

11 - 24*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-16

Observatory

Mt. Lemmon Survey

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

1.934682

1-sigma variation

0.001457

Unit

Eccentricity (e)

Value

0.471867

1-sigma variation

0.000391

Unit

Inclination (i)

Value

2.2076

1-sigma variation

0.0014

Unit

Long. of Ascending Node (Ω)

Value

347.2550

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

10.6116

1-sigma variation

0.0016

Unit

Mean Anomaly (M)

Value

290.38785

1-sigma variation

0.32709

Unit

Perihelion distance

Value

1.021769

1-sigma variation

Unit

Aphelion distance

Value

2.847595

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.019739

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.811239

1-sigma variation

Unit

MOID

Value

0.017366

1-sigma variation

Unit

Orbit Period

Value

982.9080

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.12181E-6	5.69619E-7	1.97174E-6	-4.16670E-7	-1.91539E-6	-4.76451E-4
e	5.69619E-7	1.52920E-7	5.29330E-7	-1.11865E-7	-5.14171E-7	-1.27908E-4
i	1.97174E-6	5.29330E-7	1.83530E-6	-3.75498E-7	-1.81967E-6	-4.42744E-4
Ω	-4.16670E-7	-1.11865E-7	-3.75498E-7	1.30365E-7	1.95403E-7	9.36048E-5
ω	-1.91539E-6	-5.14171E-7	-1.81967E-6	1.95403E-7	2.53107E-6	4.29903E-4
M	-4.76451E-4	-1.27908E-4	-4.42744E-4	9.36048E-5	4.29903E-4	1.06987E-1

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

26.953

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

11 - 24*

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

734

Unit

Source

[1]

Normalized RMS of residuals

Value

0.570653

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-16.26518

Unit

Source

[2]

Last Observation

Value

2023-09-18.88991

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

35 (2)

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 2023SB 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	1961-09-11 10:38	> 1 mo	0.0186314	0.0144857	0.0945922
MARS	1964-09-23 10:14	> 1 mo	0.0339506	0.0247891	0.2361159
EARTH	1988-08-24 04:13	> 1 mo	0.0592912	0.0005517	0.1663841
EARTH	2023-09-15 09:04	< 1 min	0.0172902	0.0172522	0.0000127
EARTH	2058-08-24 12:49	> 1 mo	0.0632179	0.0005264	0.1695770
EARTH	2066-10-28 18:55	1255.6	0.1887746	0.1615002	0.0090961
EARTH	2101-08-11 12:17	> 1 mo	0.1736590	0.0082992	0.7791940
EARTH	2109-10-14 04:15	> 1 mo	0.0639808	0.0115438	0.5767304

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
357.38255502	252.14249701	0.01798732	MINIMUM
179.42496980	74.97257588	1.85182384	SADDLE
358.37611669	73.79917316	2.01704979	SADDLE
179.39775037	254.95361937	3.85147271	MAXIMUM

Download:

MOID Plots

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