Asteroids

2023SB2 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.864

Aphelion (Q)

1.603

Eccentricity (e)

0.300

Inclination (i)

6.5

deg

Orbit period (P)

500.5

Earth MOID

0.01597

U parameter

7.9

Next Earth close approach

Date

2039-02-07

Nominal distance (from Earth center)

0.07435

11122069

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

27.6

mag

Diameter

8 - 18*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-19

Observatory

Kitt Peak-Bok

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

1.233658

1-sigma variation

0.000847

Unit

Eccentricity (e)

Value

0.299708

1-sigma variation

0.000646

Unit

Inclination (i)

Value

6.4521

1-sigma variation

0.0136

Unit

Long. of Ascending Node (Ω)

Value

353.0710

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

75.4349

1-sigma variation

0.0067

Unit

Mean Anomaly (M)

Value

24.21755

1-sigma variation

0.37524

Unit

Perihelion distance

Value

0.863921

1-sigma variation

Unit

Aphelion distance

Value

1.603396

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.038995

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.220078

1-sigma variation

Unit

MOID

Value

0.015975

1-sigma variation

Unit

Orbit Period

Value

500.4847

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.16636E-7	5.47236E-7	1.15375E-5	-3.44729E-7	-5.69005E-6	-3.17653E-4
e	5.47236E-7	4.17882E-7	8.81056E-6	-2.63155E-7	-4.34460E-6	-2.42566E-4
i	1.15375E-5	8.81056E-6	1.85823E-4	-5.53018E-6	-9.15341E-5	-5.11408E-3
Ω	-3.44729E-7	-2.63155E-7	-5.53018E-6	1.71182E-7	2.75484E-6	1.52794E-4
ω	-5.69005E-6	-4.34460E-6	-9.15341E-5	2.75484E-6	4.52700E-5	2.52211E-3
M	-3.17653E-4	-2.42566E-4	-5.11408E-3	1.52794E-4	2.52211E-3	1.40801E-1

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

27.569

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

8 - 18*

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

593

Unit

Source

[1]

Normalized RMS of residuals

Value

0.455418

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-19.245073

Unit

Source

[2]

Last Observation

Value

2023-09-24.162179

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

27 (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 2023SB2 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	1954-02-14 05:38	> 1 mo	0.1846290	0.0706993	1.9228912
EARTH	1965-02-04 03:11	> 1 mo	0.0736923	0.0729630	0.1397450
EARTH	1975-12-15 02:23	> 1 mo	0.1558316	0.1128255	0.1245543
EARTH	1986-10-14 12:05	> 1 mo	0.1068778	0.0072450	0.2776430
EARTH	1997-09-21 08:09	> 1 w	0.0286695	0.0152700	0.1265409
EARTH	2002-02-15 16:05	> 1 d	0.1986970	0.0686949	0.1300314
EARTH	2013-01-04 23:16	> 1 mo	0.1405165	0.0576202	0.0381673
EARTH	2023-09-24 17:20	< 1 min	0.0177263	0.0176144	0.0000373
EARTH	2039-02-07 10:49	> 1 d	0.0743464	0.0705577	0.0286118
EARTH	2049-12-17 09:58	> 1 mo	0.1546030	0.0975578	0.0396346
EARTH	2060-10-07 14:41	> 1 mo	0.0899824	0.0054288	0.2355065
EARTH	2071-09-19 04:27	> 1 w	0.0676404	0.0156300	0.1922664
EARTH	2076-02-15 21:13	> 1 d	0.1852045	0.0697375	0.0644301
EARTH	2087-02-02 02:28	> 1 w	0.0864667	0.0691806	0.1582592
EARTH	2097-11-06 03:29	> 1 mo	0.1425595	0.0558959	0.2805792
EARTH	2108-09-20 08:22	> 1 mo	0.0582249	0.0167746	0.9146548
EARTH	2113-02-15 14:22	> 1 w	0.1668821	0.0685782	0.4215450
EARTH	2123-12-28 07:09	> 1 mo	0.1489716	0.0666475	0.3252159

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
307.31439545	259.52798996	0.01610229	MINIMUM
52.40712694	33.94479528	0.07104702	MINIMUM
2.03356121	329.88914168	0.15786863	SADDLE
179.89573748	146.11986317	0.60581671	SADDLE
358.23959592	144.79472286	1.87490516	SADDLE
178.67828933	325.22308930	2.58537689	MAXIMUM

Download:

MOID Plots

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