Asteroids

2023SQ

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

Orbital Properties

Epoch

60200.0

MJD

Orbit type

Aten

Perihelion (q)

0.596

Aphelion (Q)

1.031

Eccentricity (e)

0.267

Inclination (i)

5.5

deg

Orbit period (P)

267.9

Earth MOID

0.00565

U parameter

5.8

Next Earth close approach

Date

2026-11-08

Nominal distance (from Earth center)

0.18608

27836780

Maximum Brightness

24.7

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.9

mag

Diameter

40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-17

Observatory

ATLAS-HKO, 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

0.813299

1-sigma variation

0.000013

Unit

Eccentricity (e)

Value

0.267408

1-sigma variation

0.000025

Unit

Inclination (i)

Value

5.4615

1-sigma variation

0.0007

Unit

Ascending Node (Ω)

Value

177.6811

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

17.3886

1-sigma variation

0.0003

Unit

Mean Anomaly (M)

Value

139.45648

1-sigma variation

0.00196

Unit

Perihelion

Value

0.595817

1-sigma variation

Unit

Aphelion

Value

1.030781

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.395219

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.009640

1-sigma variation

Unit

MOID

Value

0.005650

1-sigma variation

Unit

Orbit Period

Value

267.9006

1-sigma variation

Unit

U parameter

Value

5.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.68373E-10	-3.20351E-10	-9.52440E-9	1.57338E-9	-3.97532E-9	2.54409E-8
e	-3.20351E-10	6.09516E-10	1.81214E-8	-2.99355E-9	7.56582E-9	-4.84087E-8
i	-9.52440E-9	1.81214E-8	5.39183E-7	-8.91027E-8	2.24948E-7	-1.43909E-6
Ω	1.57338E-9	-2.99355E-9	-8.91027E-8	1.47335E-8	-3.71669E-8	2.37717E-7
ω	-3.97532E-9	7.56582E-9	2.24948E-7	-3.71669E-8	9.45695E-8	-6.01907E-7
M	2.54409E-8	-4.84087E-8	-1.43909E-6	2.37717E-7	-6.01907E-7	3.84635E-6

Date of computation: 2023-09-27 13:21 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

24.931

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

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

[-]

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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

0.65982

Unit

arcsec

Source

[1]

First Observation

Value

2023-09-17.337269

Unit

Source

[2]

Last Observation

Value

2023-09-24.079258

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

211 (4)

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 2023SQ 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	1953-09-11 18:27	> 1 w	0.1678163	0.0163103	0.7645395
EARTH	1956-09-26 05:37	> 1 mo	0.0286819	0.0124573	0.7145856
EARTH	1959-11-11 06:04	> 1 w	0.1329088	0.0687193	0.9703897
EARTH	1973-09-22 06:27	> 1 mo	0.0174955	0.0082205	0.1683324
EARTH	1976-11-09 18:01	> 1 d	0.1677291	0.0668397	0.2249177
EARTH	1987-09-19 09:06	> 1 d	0.0068786	0.0063194	0.0021916
EARTH	1998-09-11 11:51	51.8	0.1478359	0.1364869	0.0037846
EARTH	2001-11-02 10:15	577.7	0.0694177	0.0665325	0.0010411
EARTH	2012-09-23 15:13	510.5	0.0213738	0.0187446	0.0008870
EARTH	2023-09-18 03:02	< 1 s	0.0057566	0.0057548	0.0000006
EARTH	2026-11-08 02:11	7.4	0.1860774	0.1849433	0.0003782
EARTH	2037-10-16 20:10	823.3	0.0552225	0.0537954	0.0004990
EARTH	2048-09-12 00:48	240.6	0.0487657	0.0398812	0.0029710
EARTH	2051-11-08 15:23	67.7	0.1278466	0.1232425	0.0015468
EARTH	2062-09-18 15:10	827.5	0.0060301	0.0048339	0.0015504
EARTH	2073-09-24 17:15	> 1 w	0.0246881	0.0083899	0.0456846
EARTH	2084-10-28 06:27	> 1 w	0.0696829	0.0611249	0.0259990
EARTH	2092-09-10 02:26	> 1 d	0.0923597	0.0115023	0.1609843
EARTH	2095-11-06 14:18	> 1 d	0.1825920	0.0730520	0.1671628
EARTH	2103-09-25 13:23	> 1 mo	0.0236992	0.0074363	0.1070253
EARTH	2111-09-12 02:47	> 1 d	0.1720967	0.0145776	0.2015817
EARTH	2114-11-07 02:24	> 1 d	0.1336920	0.0729475	0.2714633
EARTH	2122-09-28 05:38	> 1 mo	0.0303777	0.0105724	0.3463991

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