Asteroids

2023RD13 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.981

Aphelion (Q)

1.623

Eccentricity (e)

0.246

Inclination (i)

3.9

deg

Orbit period (P)

542.6

Earth MOID

0.02285

U parameter

7.0

Next Earth close approach

Date

2026-08-28

Nominal distance (from Earth center)

0.17903

26782024

Maximum Brightness

25.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

13 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-13

Observatory

MAPS, San Pedro de Atacama

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

1.301987

1-sigma variation

0.000223

Unit

Eccentricity (e)

Value

0.246278

1-sigma variation

0.000133

Unit

Inclination (i)

Value

3.8888

1-sigma variation

0.0019

Unit

Long. of Ascending Node (Ω)

Value

158.0652

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

231.4102

1-sigma variation

0.0025

Unit

Mean Anomaly (M)

Value

146.59067

1-sigma variation

0.12758

Unit

Perihelion distance

Value

0.981336

1-sigma variation

Unit

Aphelion distance

Value

1.622638

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.453771

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.050062

1-sigma variation

Unit

MOID

Value

0.022849

1-sigma variation

Unit

Orbit Period

Value

542.6358

1-sigma variation

Unit

U parameter

Value

7.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.96601E-8	2.95583E-8	4.31366E-7	8.90039E-8	-5.60943E-7	-2.84311E-5
e	2.95583E-8	1.75934E-8	2.56753E-7	5.29762E-8	-3.33873E-7	-1.69225E-5
i	4.31366E-7	2.56753E-7	3.74706E-6	7.73183E-7	-4.87275E-6	-2.46962E-4
Ω	8.90039E-8	5.29762E-8	7.73183E-7	1.59720E-7	-1.00551E-6	-5.09559E-5
ω	-5.60943E-7	-3.33873E-7	-4.87275E-6	-1.00551E-6	6.33911E-6	3.21146E-4
M	-2.84311E-5	-1.69225E-5	-2.46962E-4	-5.09559E-5	3.21146E-4	1.62771E-2

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

26.5

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

13 - 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

Unit

Source

[1]

Unobserved

Value

786

Unit

Source

[1]

Normalized RMS of residuals

Value

0.566196

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-08-23.396953

Unit

Source

[2]

Last Observation

Value

2023-09-15.045893

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

32 (1)

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 2023RD13 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	1965-11-26 05:23	> 1 d	0.1062632	0.0682052	0.0333004
EARTH	1968-10-13 15:49	> 1 d	0.0505207	0.0447775	0.0019728
EARTH	1971-09-11 10:53	> 1 w	0.0374873	0.0207410	0.0418281
EARTH	1974-08-26 17:53	> 1 d	0.1925059	0.0218963	0.0574637
EARTH	2017-12-07 01:04	646.1	0.1992502	0.1719708	0.0091976
EARTH	2020-11-15 12:36	> 1 d	0.0711755	0.0665773	0.0018131
EARTH	2023-09-17 03:42	< 1 min	0.0232690	0.0232339	0.0000117
EARTH	2026-08-28 03:38	358.8	0.1790268	0.1649018	0.0047092
MARS	2027-05-30 05:58	741.9	0.0483066	0.0450626	0.0014174
MARS	2055-08-21 07:06	> 1 d	0.0465956	0.0439766	0.0089797
EARTH	2069-11-19 10:08	> 1 w	0.0735344	0.0635915	0.0299095
EARTH	2072-09-15 15:01	> 1 w	0.0256251	0.0238031	0.0214509
EARTH	2112-11-22 19:16	> 1 mo	0.0751247	0.0639036	0.6851265
EARTH	2115-09-13 05:35	> 1 mo	0.0409496	0.0229585	1.0741574

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
332.73590953	253.46436164	0.02338010	MINIMUM
178.64037564	105.57606422	0.62178170	SADDLE
356.60046669	103.75118673	1.98496591	SADDLE
177.61824351	284.78327476	2.61711055	MAXIMUM

Download:

MOID Plots

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