Asteroids

2023RL help

Last update: 2026-06-04 23:11 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.612

Aphelion (Q)

1.042

Eccentricity (e)

0.260

Inclination (i)

4.4

deg

Orbit period (P)

274.8

Earth MOID

0.00453

U parameter

6.4

Next Earth close approach

Date

2026-08-26

Nominal distance (from Earth center)

0.03261

4877916

Maximum Brightness

22.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.3

mag

Diameter

6 - 13*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-06

Observatory

University of Arizona Mt. Lemmon Survey

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.827106

1-sigma variation

0.000029

Unit

Eccentricity (e)

Value

0.260341

1-sigma variation

0.000052

Unit

Inclination (i)

Value

4.3529

1-sigma variation

0.0013

Unit

Long. of Ascending Node (Ω)

Value

343.4581

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

158.2736

1-sigma variation

0.0010

Unit

Mean Anomaly (M)

Value

94.22076

1-sigma variation

0.07085

Unit

Perihelion distance

Value

0.611776

1-sigma variation

Unit

Aphelion distance

Value

1.042435

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.008499

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.370522

1-sigma variation

Unit

MOID

Value

0.004526

1-sigma variation

Unit

Orbit Period

Value

274.7514

1-sigma variation

Unit

U parameter

Value

6.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.56571E-10	-1.51231E-9	-3.76428E-8	-8.05551E-9	-2.80936E-8	-2.07364E-6
e	-1.51231E-9	2.67035E-9	6.64462E-8	1.42210E-8	4.95141E-8	3.66125E-6
i	-3.76428E-8	6.64462E-8	1.65520E-6	3.54141E-7	1.23829E-6	9.11214E-5
Ω	-8.05551E-9	1.42210E-8	3.54141E-7	7.57899E-8	2.64526E-7	1.95007E-5
ω	-2.80936E-8	4.95141E-8	1.23829E-6	2.64526E-7	9.44975E-7	6.79682E-5
M	-2.07364E-6	3.66125E-6	9.11214E-5	1.95007E-5	6.79682E-5	5.02009E-3

Date of computation: 2026-06-04 23:11 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

28.298

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

6 - 13*

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

Unit

Source

[1]

Unobserved

Value

1043

Unit

Source

[1]

Normalized RMS of residuals

Value

0.657313

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-06.43605

Unit

Source

[2]

Last Observation

Value

2023-09-09.21311

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

44 (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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2023RL from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1950-08-13 16:33	> 1 mo	0.0435021	0.0377978	0.0382435
EARTH	1953-09-16 09:22	> 1 w	0.0428234	0.0059419	0.3599119
EARTH	1973-07-25 21:30	> 1 d	0.0671749	0.0513742	0.0284934
EARTH	1976-09-07 22:07	> 1 d	0.0079371	0.0038871	0.0053283
EARTH	1979-09-17 00:58	982.1	0.0535476	0.0121922	0.0142730
EARTH	1982-09-17 11:32	292.2	0.1456852	0.1006767	0.0150265
EARTH	2011-07-20 21:54	7.4	0.1271747	0.1154400	0.0039627
EARTH	2014-07-26 04:17	489.4	0.0616845	0.0579511	0.0013489
EARTH	2017-08-15 05:44	481.2	0.0413759	0.0408497	0.0001830
EARTH	2020-09-05 23:34	304.7	0.0118594	0.0102532	0.0005464
EARTH	2023-09-09 06:59	< 1 min	0.0050485	0.0050452	0.0000011
EARTH	2026-08-26 03:19	465.0	0.0326069	0.0314903	0.0003745
EARTH	2029-08-02 14:19	646.0	0.0480651	0.0475892	0.0001813
EARTH	2032-07-18 16:57	224.7	0.0756060	0.0715173	0.0014090
EARTH	2035-07-17 00:39	30.1	0.1509735	0.1434958	0.0025048
EARTH	2066-09-16 15:32	20.5	0.1106998	0.1009314	0.0032580
EARTH	2069-09-13 18:40	365.8	0.0317458	0.0237930	0.0026788
EARTH	2072-09-07 07:46	149.3	0.0073540	0.0067455	0.0002277
EARTH	2075-08-04 03:52	> 1 d	0.0458723	0.0444027	0.0009057
EARTH	2078-07-16 04:24	560.3	0.0970039	0.0680137	0.0107124
EARTH	2103-09-17 07:20	10.6	0.1025747	0.0128552	0.0425314
EARTH	2106-09-07 18:58	> 1 w	0.0096795	0.0071757	0.0225575
EARTH	2109-07-18 18:57	> 1 d	0.0629110	0.0449813	0.0445871

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
211.72675704	245.88196472	0.00439674	MINIMUM
3.15097442	43.48091888	0.37663219	SADDLE
4.05876352	224.61159130	1.62523870	SADDLE
182.56717097	43.08424669	2.03005306	MAXIMUM

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MOID Plots

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