Asteroids

2023SG7 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Amor

Perihelion (q)

1.058

Aphelion (Q)

1.548

Eccentricity (e)

0.188

Inclination (i)

25.1

deg

Orbit period (P)

543.4

Earth MOID

0.12768

U parameter

7.4

Next Earth close approach

Date

2026-10-07

Nominal distance (from Earth center)

0.13998

20940488

Maximum Brightness

20.9

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

23.5

mag

Diameter

50 - 120*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-24

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

1.303202

1-sigma variation

0.000451

Unit

Eccentricity (e)

Value

0.187909

1-sigma variation

0.000203

Unit

Inclination (i)

Value

25.0606

1-sigma variation

0.0166

Unit

Long. of Ascending Node (Ω)

Value

189.8201

1-sigma variation

0.0025

Unit

Arg. of Perihelion (ω)

Value

234.6151

1-sigma variation

0.0332

Unit

Mean Anomaly (M)

Value

342.52134

1-sigma variation

0.15639

Unit

Perihelion distance

Value

1.058318

1-sigma variation

Unit

Aphelion distance

Value

1.548086

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.411664

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.133423

1-sigma variation

Unit

MOID

Value

0.127685

1-sigma variation

Unit

Orbit Period

Value

543.3957

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.03604E-7	9.15906E-8	7.46699E-6	-1.11898E-6	-1.49775E-5	-7.05663E-5
e	9.15906E-8	4.12092E-8	3.35832E-6	-5.03219E-7	-6.73659E-6	-3.17443E-5
i	7.46699E-6	3.35832E-6	2.73934E-4	-4.10567E-5	-5.49336E-4	-2.58797E-3
Ω	-1.11898E-6	-5.03219E-7	-4.10567E-5	6.15409E-6	8.23277E-5	3.87826E-4
ω	-1.49775E-5	-6.73659E-6	-5.49336E-4	8.23277E-5	1.10201E-3	5.19092E-3
M	-7.05663E-5	-3.17443E-5	-2.58797E-3	3.87826E-4	5.19092E-3	2.44574E-2

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

23.524

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

50 - 120*

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

575

Unit

Source

[1]

Normalized RMS of residuals

Value

0.878521

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-24.173717

Unit

Source

[2]

Last Observation

Value

2023-10-12.118703

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

23 (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 2023SG7 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	1965-10-06 17:28	> 1 d	0.1801743	0.1310156	0.1172014
EARTH	1968-10-06 17:17	1008.3	0.1287395	0.1272252	0.0240737
EARTH	2023-10-07 15:22	< 1 min	0.1553650	0.1550521	0.0001043
EARTH	2026-10-07 05:10	84.0	0.1399785	0.1312748	0.0037946
EARTH	2081-10-07 09:15	374.3	0.1370175	0.1281796	0.0593530
EARTH	2084-10-06 13:48	> 1 d	0.1607679	0.1290264	0.1070681

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
317.81593964	272.95908873	0.12804671	MINIMUM
93.45459246	67.88965425	0.36933389	MINIMUM
35.62395790	5.63511659	0.46451056	SADDLE
204.76764212	161.42671090	0.72902982	SADDLE
8.80977186	151.44334801	2.03550369	SADDLE
166.20028049	307.78311639	2.50415877	MAXIMUM

Download:

MOID Plots

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