Asteroids

2023SG

Last update: 2023-10-02 13:05 UTC

Orbital Properties

Epoch

60200.0

MJD

Orbit type

Aten

Perihelion (q)

0.735

Aphelion (Q)

1.083

Eccentricity (e)

0.191

Inclination (i)

13.6

deg

Orbit period (P)

316.6

Earth MOID

0.02485

U parameter

6.3

Next Earth close approach

Date

2036-09-11

Nominal distance (from Earth center)

0.08573

12825377

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.6

mag

Diameter

17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-16

Observatory

Pan-STARRS 1, Haleakala

Orbit Visualiser

Click the button to start Orbit Visualiser

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion
Aphelion
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

60200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.909102

1-sigma variation

0.000036

Unit

Eccentricity (e)

Value

0.191365

1-sigma variation

0.000256

Unit

Inclination (i)

Value

13.6203

1-sigma variation

0.0238

Unit

Ascending Node (Ω)

Value

173.9069

1-sigma variation

0.0012

Unit

Arg. of Perihelion (ω)

Value

36.4702

1-sigma variation

0.0239

Unit

Mean Anomaly (M)

Value

123.00819

1-sigma variation

0.05398

Unit

Perihelion

Value

0.735131

1-sigma variation

Unit

Aphelion

Value

1.083072

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.236799

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.029820

1-sigma variation

Unit

MOID

Value

0.024852

1-sigma variation

Unit

Orbit Period

Value

316.6044

1-sigma variation

Unit

U parameter

Value

6.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.29817E-9	-9.06433E-9	-8.18131E-7	4.02573E-8	-8.39781E-7	1.90238E-6
e	-9.06433E-9	6.55600E-8	6.05807E-6	-2.97761E-7	6.12120E-6	-1.38181E-5
i	-8.18131E-7	6.05807E-6	5.68603E-4	-2.79271E-5	5.68188E-4	-1.28001E-3
Ω	4.02573E-8	-2.97761E-7	-2.79271E-5	1.37171E-6	-2.79213E-5	6.29069E-5
ω	-8.39781E-7	6.12120E-6	5.68188E-4	-2.79213E-5	5.72669E-4	-1.29160E-3
M	1.90238E-6	-1.38181E-5	-1.28001E-3	6.29069E-5	-1.29160E-3	2.91424E-3

Date of computation: 2023-09-18 11:58 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

26.618

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

17*

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

[-]

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Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

0.750875

Unit

arcsec

Source

[1]

First Observation

Value

2023-09-16.32477

Unit

Source

[2]

Last Observation

Value

2023-09-18.00165

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

27 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2023SG from 1950 to 2123

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1957-09-12 10:18	409.0	0.1863681	0.1271149	0.0199533
EARTH	1964-09-16 23:12	> 1 d	0.0644419	0.0312459	0.0161687
VENUS	1974-10-15 02:16	520.5	0.0306899	0.0244081	0.0041359
EARTH	1977-09-12 01:11	73.2	0.1414461	0.1297437	0.0039145
EARTH	1984-09-29 12:11	653.6	0.1434297	0.1378092	0.0018984
VENUS	1989-07-20 06:48	651.4	0.0396772	0.0229793	0.0082635
EARTH	1997-09-17 04:10	1029.4	0.0618353	0.0423538	0.0070262
VENUS	2008-08-17 15:60	532.7	0.0350336	0.0243202	0.0052940
EARTH	2010-09-14 21:24	342.9	0.0344076	0.0280687	0.0026164
EARTH	2023-09-13 20:37	< 1 min	0.0251522	0.0250334	0.0000396
EARTH	2036-09-11 13:16	26.3	0.0857324	0.0740399	0.0039411
VENUS	2042-06-17 07:19	395.5	0.0261235	0.0246002	0.0016494
EARTH	2043-10-16 10:42	> 1 d	0.1989706	0.1871814	0.0040427
EARTH	2049-09-12 21:10	278.6	0.1811603	0.1330531	0.0161384
EARTH	2056-09-29 10:46	> 1 d	0.1446248	0.0933871	0.0189602
EARTH	2069-09-19 16:41	> 1 d	0.0860065	0.0393718	0.0183322
VENUS	2076-04-16 08:32	903.6	0.0442067	0.0225861	0.0113412
EARTH	2082-09-18 09:26	785.5	0.0718469	0.0582334	0.0047112
EARTH	2095-09-23 12:09	> 1 d	0.1088912	0.0452889	0.0282342
VENUS	2099-09-04 21:25	> 1 d	0.0342867	0.0222982	0.0356206
EARTH	2108-09-29 05:02	> 1 d	0.1392155	0.0704583	0.0286680
VENUS	2118-09-28 13:20	> 1 d	0.0414082	0.0215143	0.0251367
EARTH	2121-10-06 12:38	> 1 d	0.1681760	0.1418679	0.0090823

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