Asteroids

2023RW3 help

Last update: 2025-02-09 18:08 UTC

Orbital Properties

Epoch

60600.0

MJD

Orbit type

Apollo

Perihelion (q)

0.916

Aphelion (Q)

1.136

Eccentricity (e)

0.107

Inclination (i)

8.8

deg

Orbit period (P)

379.6

Earth MOID

0.00242

U parameter

6.6

Next Earth close approach

Date

2025-02-25

Nominal distance (from Earth center)

0.01836

2746535

Maximum Brightness

20.7

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.4

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

60600.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.026083

1-sigma variation

0.000076

Unit

Eccentricity (e)

Value

0.107347

1-sigma variation

0.000114

Unit

Inclination (i)

Value

8.8424

1-sigma variation

0.0115

Unit

Long. of Ascending Node (Ω)

Value

337.6956

1-sigma variation

0.0011

Unit

Arg. of Perihelion (ω)

Value

102.4366

1-sigma variation

0.0204

Unit

Mean Anomaly (M)

Value

301.23184

1-sigma variation

0.01016

Unit

Perihelion distance

Value

0.915936

1-sigma variation

Unit

Aphelion distance

Value

1.136231

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.029028

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.002803

1-sigma variation

Unit

MOID

Value

0.002416

1-sigma variation

Unit

Orbit Period

Value

379.6404

1-sigma variation

Unit

U parameter

Value

6.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.73750E-9	8.61035E-9	8.71657E-7	8.22552E-8	-1.54316E-6	-7.69418E-7
e	8.61035E-9	1.29221E-8	1.30810E-6	1.23392E-7	-2.31571E-6	-1.15470E-6
i	8.71657E-7	1.30810E-6	1.32429E-4	1.25010E-5	-2.34447E-4	-1.16892E-4
Ω	8.22552E-8	1.23392E-7	1.25010E-5	1.18840E-6	-2.21409E-5	-1.10281E-5
ω	-1.54316E-6	-2.31571E-6	-2.34447E-4	-2.21409E-5	4.15088E-4	2.06936E-4
M	-7.69418E-7	-1.15470E-6	-1.16892E-4	-1.10281E-5	2.06936E-4	1.03183E-4

Date of computation: 2024-12-09 13:46 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

26.42

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

[-]

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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

510

Unit

Source

[1]

Normalized RMS of residuals

Value

0.607553

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

2023-09-19.264682

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

26 (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 08:34	745.0	0.1178807	0.0094679	0.2023060
EARTH	1972-08-31 12:38	> 1 d	0.0819239	0.0364441	0.1030894
EARTH	1973-04-04 11:32	> 1 w	0.1888066	0.0996982	0.0536622
EARTH	1974-02-27 02:11	> 1 d	0.0149929	0.0026261	0.0353104
EARTH	1997-09-04 10:20	466.3	0.1280413	0.0895976	0.0129499
EARTH	1998-08-24 04:38	> 1 d	0.1168753	0.0802487	0.0127571
EARTH	1999-02-22 08:46	139.7	0.1352303	0.0878303	0.0158001
EARTH	2000-03-02 23:35	862.1	0.1170472	0.0684755	0.0161907
EARTH	2023-09-05 17:35	< 1 min	0.0248749	0.0247801	0.0000316
EARTH	2024-06-30 22:04	358.8	0.1976391	0.1963782	0.0004205
EARTH	2025-02-25 06:52	28.0	0.0183595	0.0167427	0.0005396
EARTH	2026-03-07 10:47	16.5	0.1978098	0.1969873	0.0002742
EARTH	2052-09-01 10:32	274.5	0.1365597	0.1181223	0.0061579
EARTH	2053-08-31 16:30	759.9	0.0748100	0.0577185	0.0057799
EARTH	2054-04-16 14:16	> 1 d	0.1940204	0.1828244	0.0038005
EARTH	2055-02-27 03:03	437.1	0.0197291	0.0030825	0.0058149
EARTH	2078-09-04 19:03	> 1 d	0.1049836	0.0270492	0.2341986
EARTH	2079-08-17 15:21	> 1 mo	0.1359774	0.0623438	0.1920908
EARTH	2080-02-21 06:28	> 1 d	0.1159579	0.0046476	0.2353663
EARTH	2081-03-03 22:14	> 1 w	0.1340733	0.0000444	0.2094056
EARTH	2104-09-05 17:07	> 1 d	0.0621533	0.0260101	0.5284529
EARTH	2105-08-03 20:57	> 1 mo	0.1643375	0.0969179	0.3622291
EARTH	2106-02-22 16:52	> 1 w	0.0812606	0.0053226	0.5015191
EARTH	2107-03-06 23:05	> 1 w	0.1572570	0.0004858	0.3826018

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
71.34675503	54.89340880	0.00098842	MINIMUM
268.43012775	241.46289171	0.02492192	MINIMUM
349.44405706	327.24209633	0.16150992	SADDLE
170.22453149	149.22066502	0.20421914	SADDLE
354.63485461	153.00756123	1.92542069	SADDLE
177.89703591	336.30105489	2.11399165	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2023RW3

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2078-02-25.950	80089.950	1.587	1.23 ± 0.024	4.94E4	9.27E-6	1.46E-6	-5.89
2084-02-26.124	82281.124	1.588	0.28 ± 1.432	1.78E10	2.22E-11	3.48E-12	-11.56
2095-02-26.052	86299.052	1.861	1.80 ± 0.022	1.13E7	1.93E-8	3.02E-9	-8.69
2120-02-27.150	95430.150	1.215	1.52 ± 0.009	3.68E6	1.80E-7	2.82E-8	-7.85
2121-02-26.471	95795.471	1.609	2.13 ± 0.009	2.23E5	1.03E-6	1.62E-7	-7.10


Based on 26 optical observations (of which 0 are rejected as outliers) from 2023/09/08.166 to 2023/09/19.265.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 2.31 and 2.31 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20240110 090432.668 UTC.

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