Asteroids

2023RA8 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.012

Aphelion (Q)

1.236

Eccentricity (e)

0.100

Inclination (i)

12.4

deg

Orbit period (P)

435.4

Earth MOID

0.03734

U parameter

7.1

Next Earth close approach

Date

2030-03-02

Nominal distance (from Earth center)

0.18514

27696571

Maximum Brightness

23.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.6

mag

Diameter

20 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-12

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.124223

1-sigma variation

0.000198

Unit

Eccentricity (e)

Value

0.099822

1-sigma variation

0.000127

Unit

Inclination (i)

Value

12.3925

1-sigma variation

0.0123

Unit

Long. of Ascending Node (Ω)

Value

354.4270

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

48.6186

1-sigma variation

0.0287

Unit

Mean Anomaly (M)

Value

256.47432

1-sigma variation

0.13913

Unit

Perihelion distance

Value

1.012001

1-sigma variation

Unit

Aphelion distance

Value

1.236445

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.038515

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.196103

1-sigma variation

Unit

MOID

Value

0.037339

1-sigma variation

Unit

Orbit Period

Value

435.3885

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.92739E-8	2.51796E-8	2.43363E-6	-8.44968E-8	-5.69090E-6	-2.75725E-5
e	2.51796E-8	1.61436E-8	1.56025E-6	-5.41710E-8	-3.64851E-6	-1.76776E-5
i	2.43363E-6	1.56025E-6	1.50803E-4	-5.23610E-6	-3.52644E-4	-1.70854E-3
Ω	-8.44968E-8	-5.41710E-8	-5.23610E-6	1.81831E-7	1.22447E-5	5.93209E-5
ω	-5.69090E-6	-3.64851E-6	-3.52644E-4	1.22447E-5	8.24674E-4	3.99530E-3
M	-2.75725E-5	-1.76776E-5	-1.70854E-3	5.93209E-5	3.99530E-3	1.93575E-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

25.584

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

20 - 50*

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

772

Unit

Source

[1]

Normalized RMS of residuals

Value

0.655421

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-12.418794

Unit

Source

[2]

Last Observation

Value

2023-09-25.180964

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

29 (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 2023RA8 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	1967-09-20 04:13	84.3	0.0377792	0.0370998	0.0007009
EARTH	1974-03-02 23:37	> 1 d	0.1869712	0.1865219	0.0008228
EARTH	1992-09-18 05:34	1127.2	0.1895860	0.0916094	0.0338317
EARTH	1998-09-19 05:55	1018.4	0.0616863	0.0370335	0.0300081
EARTH	2005-03-12 04:54	> 1 d	0.1978104	0.1914122	0.0060888
EARTH	2023-09-20 10:07	< 1 min	0.0397013	0.0395811	0.0000401
EARTH	2030-03-02 12:51	> 1 d	0.1851401	0.1846544	0.0006351
EARTH	2048-09-18 18:52	1078.3	0.1677337	0.0656965	0.0361962
EARTH	2054-09-18 15:34	1215.5	0.0875670	0.0372047	0.0366796
EARTH	2055-02-11 13:01	> 1 w	0.1926729	0.1883124	0.0078058
EARTH	2079-09-20 07:05	28.0	0.0379988	0.0378650	0.0001068
EARTH	2086-03-08 02:34	> 1 d	0.1895274	0.1873378	0.0021203
EARTH	2104-09-20 21:43	272.2	0.0600355	0.0381593	0.0414907
EARTH	2110-09-16 17:41	> 1 d	0.1973163	0.0403634	0.0568146
EARTH	2111-02-27 05:05	> 1 w	0.1816921	0.1816393	0.0012570

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
317.79535800	255.42730038	0.03811246	MINIMUM
106.38283048	52.40340385	0.18288063	MINIMUM
44.63901685	349.96603256	0.22529644	SADDLE
208.28997172	145.70426177	0.31218078	SADDLE
358.56534340	119.38136088	2.01349482	SADDLE
167.07253727	287.74234511	2.22380277	MAXIMUM

Download:

MOID Plots

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