Asteroids

2023SC4 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.937

Aphelion (Q)

2.129

Eccentricity (e)

0.389

Inclination (i)

7.0

deg

Orbit period (P)

693.4

Earth MOID

0.03184

U parameter

8.5

Next Earth close approach

Date

2042-09-19

Nominal distance (from Earth center)

0.10829

16199706

Maximum Brightness

23.7

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.9

mag

Diameter

17 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-20

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.533106

1-sigma variation

0.003279

Unit

Eccentricity (e)

Value

0.388794

1-sigma variation

0.001389

Unit

Inclination (i)

Value

7.0203

1-sigma variation

0.0216

Unit

Long. of Ascending Node (Ω)

Value

353.3168

1-sigma variation

0.0016

Unit

Arg. of Perihelion (ω)

Value

57.0305

1-sigma variation

0.0071

Unit

Mean Anomaly (M)

Value

283.72004

1-sigma variation

0.89515

Unit

Perihelion distance

Value

0.937043

1-sigma variation

Unit

Aphelion distance

Value

2.129169

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.069022

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.656282

1-sigma variation

Unit

MOID

Value

0.031840

1-sigma variation

Unit

Orbit Period

Value

693.3567

1-sigma variation

Unit

U parameter

Value

8.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.07511E-5	4.55409E-6	7.09413E-5	-5.28416E-6	-2.33340E-5	-2.93511E-3
e	4.55409E-6	1.92908E-6	3.00503E-5	-2.23834E-6	-9.88410E-6	-1.24329E-3
i	7.09413E-5	3.00503E-5	4.68111E-4	-3.48660E-5	-1.53975E-4	-1.93674E-2
Ω	-5.28416E-6	-2.23834E-6	-3.48660E-5	2.59841E-6	1.14656E-5	1.44261E-3
ω	-2.33340E-5	-9.88410E-6	-1.53975E-4	1.14656E-5	5.06600E-5	6.37031E-3
M	-2.93511E-3	-1.24329E-3	-1.93674E-2	1.44261E-3	6.37031E-3	8.01301E-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

25.943

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

17 - 40*

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

586

Unit

Source

[1]

Normalized RMS of residuals

Value

0.326737

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-20.21604

Unit

Source

[2]

Last Observation

Value

2023-09-30.842326

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

24 (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 2023SC4 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	1985-12-14 19:30	> 1 mo	0.1212336	0.1210514	0.0208661
EARTH	2004-10-18 14:16	> 1 mo	0.0843717	0.0065948	0.2379215
EARTH	2023-09-30 07:06	< 1 min	0.0317855	0.0314752	0.0001034
EARTH	2042-09-19 01:41	> 1 w	0.1082883	0.0267470	0.3559923
EARTH	2059-12-31 23:44	> 1 w	0.1531145	0.1215342	0.1983388
EARTH	2078-12-02 03:19	> 1 mo	0.1203647	0.1202872	0.0033868
EARTH	2097-10-17 11:25	> 1 d	0.0812289	0.0328241	0.0166125
EARTH	2116-10-04 13:40	> 1 w	0.0420022	0.0329479	0.0733343

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
329.88355238	265.17208641	0.03186313	MINIMUM
18.42237434	336.30307433	0.12017259	MINIMUM
16.41105770	333.38468624	0.12018121	SADDLE
179.98312998	127.89231693	1.12918880	SADDLE
358.50249228	126.85190624	1.94426160	SADDLE
178.84372125	307.13814171	3.11480618	MAXIMUM

Download:

MOID Plots

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