Asteroids

2023RW3 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.914

Aphelion (Q)

1.131

Eccentricity (e)

0.106

Inclination (i)

8.9

deg

Orbit period (P)

377.8

Earth MOID

0.00050

U parameter

1.7

Next Earth close approach

Date

2026-03-07

Nominal distance (from Earth center)

0.19782

29593478

Maximum Brightness

25.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-08

Observatory

Pleasant Groves Observatory

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.022695

1-sigma variation

4.935E-8

Unit

Eccentricity (e)

Value

0.106280

1-sigma variation

1.675E-7

Unit

Inclination (i)

Value

8.8565

1-sigma variation

2.197E-5

Unit

Long. of Ascending Node (Ω)

Value

337.5267

1-sigma variation

1.043E-5

Unit

Arg. of Perihelion (ω)

Value

100.6909

1-sigma variation

9.139E-6

Unit

Mean Anomaly (M)

Value

323.73040

1-sigma variation

0.00004

Unit

Perihelion distance

Value

0.914003

1-sigma variation

Unit

Aphelion distance

Value

1.131388

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.021202

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.000578

1-sigma variation

Unit

MOID

Value

0.000498

1-sigma variation

Unit

Orbit Period

Value

377.7616

1-sigma variation

Unit

U parameter

Value

1.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.43519E-15	8.25131E-15	8.00717E-13	3.99428E-13	-3.99157E-13	-1.95697E-12
e	8.25131E-15	2.80485E-14	2.66968E-12	1.34630E-12	-1.36093E-12	-6.63321E-12
i	8.00717E-13	2.66968E-12	4.82734E-10	2.23028E-10	-1.69064E-10	-7.11999E-10
Ω	3.99428E-13	1.34630E-12	2.23028E-10	1.08773E-10	-8.71797E-11	-3.51685E-10
ω	-3.99157E-13	-1.36093E-12	-1.69064E-10	-8.71797E-11	8.35276E-11	3.31667E-10
M	-1.95697E-12	-6.63321E-12	-7.11999E-10	-3.51685E-10	3.31667E-10	1.60070E-9

Date of computation: 2025-09-10 00:30 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

26.461

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

14 - 30*

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

538

Unit

Source

[1]

Unobserved

Value

208

Unit

Source

[1]

Normalized RMS of residuals

Value

0.59481

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-08.16583

Unit

Source

[2]

Last Observation

Value

2025-02-27.631513

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

36 (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 2023RW3 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	1971-09-02 09:23	< 1 min	0.1265490	0.1262080	0.0001137
EARTH	1972-08-31 20:47	5.4	0.0776085	0.0774440	0.0000549
EARTH	1973-04-08 12:44	18.7	0.1909775	0.1908969	0.0000268
EARTH	1974-02-27 03:57	1.6	0.0166996	0.0166235	0.0000254
EARTH	1997-09-04 09:51	< 1 min	0.1286662	0.1286391	0.0000090
EARTH	1998-08-24 08:41	2.8	0.1162595	0.1162326	0.0000089
EARTH	1999-02-22 09:09	< 1 min	0.1359892	0.1359549	0.0000114
EARTH	2000-03-02 22:43	< 1 min	0.1162692	0.1162340	0.0000117
EARTH	2023-09-05 17:35	< 1 s	0.0248761	0.0248760	0.0000000
EARTH	2024-06-30 21:47	< 1 min	0.1976602	0.1976589	0.0000004
EARTH	2025-02-25 06:54	< 1 min	0.0183303	0.0183301	0.0000001
EARTH	2026-03-07 10:45	< 1 min	0.1978202	0.1978186	0.0000005
EARTH	2052-09-01 10:07	< 1 min	0.1370067	0.1369699	0.0000123
EARTH	2053-08-31 17:32	1.4	0.0743912	0.0743570	0.0000114
EARTH	2054-04-17 08:39	8.8	0.1942846	0.1942657	0.0000063
EARTH	2055-02-27 02:33	< 1 min	0.0193219	0.0192920	0.0000100
EARTH	2078-09-05 03:12	9.6	0.0883349	0.0870818	0.0004180
EARTH	2079-08-12 00:07	164.5	0.1491757	0.1482206	0.0003187
EARTH	2080-02-21 20:04	13.3	0.0993809	0.0981435	0.0004125
EARTH	2081-03-04 17:05	20.5	0.1485184	0.1474668	0.0003505
EARTH	2104-09-05 00:17	32.4	0.1055242	0.1017573	0.0012572
EARTH	2105-08-19 14:32	406.3	0.1309959	0.1278214	0.0010615
EARTH	2106-02-20 05:34	44.4	0.1241627	0.1203185	0.0012815
EARTH	2107-03-04 22:24	68.1	0.1207009	0.1172112	0.0011632

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
73.22722332	54.39715878	0.00086725	MINIMUM
269.06079617	239.70563437	0.01897281	MINIMUM
350.84120001	326.38405935	0.16311602	SADDLE
171.39102119	147.84143349	0.20200746	SADDLE
354.61051528	150.57501142	1.92275065	SADDLE
177.41481817	333.40464472	2.11040750	MAXIMUM

Download:

MOID Plots

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