Asteroids

2023OS3 help

Last update: 2025-04-09 08:00 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.875

Aphelion (Q)

1.209

Eccentricity (e)

0.160

Inclination (i)

0.4

deg

Orbit period (P)

388.3

Earth MOID

0.00083

U parameter

3.4

Next Earth close approach

Date

2040-08-25

Nominal distance (from Earth center)

0.07703

11523695

Maximum Brightness

27.6

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

8 - 17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-07-22

Observatory

Pan-STARRS 1, Haleakala

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

1.041690

1-sigma variation

0.000001

Unit

Eccentricity (e)

Value

0.160380

1-sigma variation

0.000002

Unit

Inclination (i)

Value

0.3780

1-sigma variation

7.627E-6

Unit

Long. of Ascending Node (Ω)

Value

136.2667

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

262.1338

1-sigma variation

0.0002

Unit

Mean Anomaly (M)

Value

163.74715

1-sigma variation

0.00037

Unit

Perihelion distance

Value

0.874623

1-sigma variation

Unit

Aphelion distance

Value

1.208756

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.049722

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.018872

1-sigma variation

Unit

MOID

Value

0.000830

1-sigma variation

Unit

Orbit Period

Value

388.3346

1-sigma variation

Unit

U parameter

Value

3.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.67227E-13	1.50141E-12	3.45632E-12	-3.04780E-11	6.36006E-11	-2.54891E-10
e	1.50141E-12	4.82497E-12	1.11063E-11	-9.79565E-11	2.04431E-10	-8.19056E-10
i	3.45632E-12	1.11063E-11	5.81749E-11	-1.42653E-9	1.67129E-9	-1.88499E-9
Ω	-3.04780E-11	-9.79565E-11	-1.42653E-9	4.99321E-8	-5.19797E-8	1.65026E-8
ω	6.36006E-11	2.04431E-10	1.67129E-9	-5.19797E-8	5.64337E-8	-3.46187E-8
M	-2.54891E-10	-8.19056E-10	-1.88499E-9	1.65026E-8	-3.46187E-8	1.39102E-7

Date of computation: 2025-04-09 08:00 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

27.722

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 - 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

[-]

Download this part as:

Sources

No.	Name	Additional
No.[1]	NameESA Aegis	AdditionalESA orbit determination and impact monitoring system
No.[2]	NameEstimation	AdditionalEstimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

579

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.446812

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-07-22.497096

Unit

Source

[2]

Last Observation

Value

2025-02-20.315051

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

40 (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 2023OS3 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	1957-06-13 22:42	> 1 w	0.1623512	0.1334648	0.0096290
EARTH	1957-10-16 01:30	> 1 w	0.1129515	0.1074686	0.0018292
EARTH	1958-03-16 00:49	> 1 w	0.1793678	0.1579150	0.0071525
EARTH	1971-08-05 22:37	318.0	0.0250313	0.0207692	0.0014209
EARTH	1973-01-18 02:27	114.0	0.0984444	0.0934549	0.0016632
EARTH	1985-05-23 14:59	1298.3	0.1971633	0.1961556	0.0003359
EARTH	1985-11-21 13:03	> 1 d	0.0996965	0.0983924	0.0004347
EARTH	1986-02-12 01:56	> 1 d	0.1297720	0.1269867	0.0009284
EARTH	1998-08-04 08:01	7.8	0.0157214	0.0156046	0.0000389
EARTH	2000-01-18 06:52	2.2	0.1500448	0.1498894	0.0000518
EARTH	2011-11-28 14:39	63.2	0.0895173	0.0894464	0.0000237
EARTH	2012-01-24 12:16	77.5	0.1126307	0.1124912	0.0000465
EARTH	2023-08-01 20:48	< 1 min	0.0064278	0.0064277	0.0000000
EARTH	2025-01-09 11:13	< 1 min	0.0513505	0.0513500	0.0000002
EARTH	2040-08-25 13:48	111.9	0.0770311	0.0768032	0.0000760
EARTH	2042-01-19 03:41	9.3	0.0311268	0.0308540	0.0000909
EARTH	2056-06-08 10:41	1203.7	0.1681972	0.1668714	0.0004419
EARTH	2056-10-21 17:38	> 1 d	0.1165068	0.1164187	0.0000294
EARTH	2057-03-17 04:36	1197.2	0.1749341	0.1737553	0.0003929
EARTH	2058-01-27 14:18	57.0	0.1994584	0.1957461	0.0012375
EARTH	2071-07-31 03:39	127.5	0.0401191	0.0357775	0.0014472
EARTH	2072-12-21 19:32	600.9	0.0781679	0.0773679	0.0002667
EARTH	2088-06-20 22:51	> 1 w	0.1449519	0.1261136	0.0062797
EARTH	2088-10-03 06:16	> 1 w	0.1118013	0.1039889	0.0026050
EARTH	2089-03-30 12:57	> 1 w	0.1889872	0.1812300	0.0025861
EARTH	2090-01-24 15:04	692.7	0.1178642	0.0798813	0.0126617
EARTH	2104-08-06 09:48	1044.2	0.0320324	0.0162168	0.0052731
EARTH	2106-01-18 12:39	335.8	0.0170892	0.0163730	0.0002387
EARTH	2118-08-03 02:21	> 1 d	0.0494040	0.0002558	0.0430997
EARTH	2120-01-16 15:43	> 1 d	0.0197545	0.0019415	0.0271549

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
279.35611577	206.71223865	0.00082970	MINIMUM
69.89539088	14.73662326	0.00204575	MINIMUM
353.86769504	289.96031643	0.11898388	SADDLE
175.55338248	111.66081755	0.20239281	SADDLE
353.76758011	109.85455441	1.88086903	SADDLE
175.59180581	291.70241972	2.20197797	MAXIMUM

Download:

MOID Plots

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