Asteroids

2023RY3 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Amor

Perihelion (q)

1.056

Aphelion (Q)

1.186

Eccentricity (e)

0.058

Inclination (i)

19.3

deg

Orbit period (P)

433.5

Earth MOID

0.06225

U parameter

6.1

Next Earth close approach

Date

2030-03-13

Nominal distance (from Earth center)

0.18835

28176888

Maximum Brightness

21.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.1

mag

Diameter

60 - 140*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-09

Observatory

Calar Alto-Schmidt

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

1.120934

1-sigma variation

0.000043

Unit

Eccentricity (e)

Value

0.058098

1-sigma variation

0.000009

Unit

Inclination (i)

Value

19.2841

1-sigma variation

0.0040

Unit

Long. of Ascending Node (Ω)

Value

172.7707

1-sigma variation

0.0007

Unit

Arg. of Perihelion (ω)

Value

6.3917

1-sigma variation

0.0054

Unit

Mean Anomaly (M)

Value

284.61617

1-sigma variation

0.05363

Unit

Perihelion distance

Value

1.055810

1-sigma variation

Unit

Aphelion distance

Value

1.186058

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.062379

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.179527

1-sigma variation

Unit

MOID

Value

0.062254

1-sigma variation

Unit

Orbit Period

Value

433.4794

1-sigma variation

Unit

U parameter

Value

6.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.85453E-9	-4.02289E-10	1.72826E-7	3.22636E-8	2.20861E-7	-2.30812E-6
e	-4.02289E-10	8.81906E-11	-3.73908E-8	-6.97455E-9	-4.86458E-8	5.01496E-7
i	1.72826E-7	-3.73908E-8	1.61185E-5	3.00935E-6	2.05401E-5	-2.15050E-4
Ω	3.22636E-8	-6.97455E-9	3.00935E-6	5.62086E-7	3.81907E-6	-4.01290E-5
ω	2.20861E-7	-4.86458E-8	2.05401E-5	3.81907E-6	2.87352E-5	-2.77597E-4
M	-2.30812E-6	5.01496E-7	-2.15050E-4	-4.01290E-5	-2.77597E-4	2.87568E-3

Date of computation: 2026-03-17 23:26 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

23.134

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

60 - 140*

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

889

Unit

Source

[1]

Normalized RMS of residuals

Value

0.618868

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-09.092507

Unit

Source

[2]

Last Observation

Value

2023-10-13.49046

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

50 (2)

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

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 2023RY3 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	1960-03-13 19:59	13.7	0.1270281	0.1019004	0.0087682
EARTH	1966-09-14 18:22	1406.0	0.1809918	0.1808474	0.0003782
EARTH	1979-03-14 14:53	15.3	0.1118922	0.0865735	0.0091412
EARTH	1985-09-14 05:26	1342.0	0.1803120	0.1802296	0.0002713
EARTH	1998-03-14 10:16	11.6	0.1270462	0.1065344	0.0070814
EARTH	2004-09-15 19:14	824.6	0.1818607	0.1805494	0.0006937
EARTH	2017-03-14 05:52	6.8	0.1691022	0.1627212	0.0021342
EARTH	2023-09-19 21:55	< 1 min	0.1908431	0.1907329	0.0000367
EARTH	2030-03-13 16:50	21.3	0.1883509	0.1818422	0.0021752
EARTH	2049-03-13 18:51	51.9	0.1383084	0.1173350	0.0071820
EARTH	2068-03-13 16:42	57.6	0.1114723	0.0870188	0.0088189
EARTH	2087-03-14 11:24	51.9	0.1151329	0.0932097	0.0077480
EARTH	2106-03-15 02:27	31.4	0.1489746	0.1375265	0.0038556
EARTH	2118-09-22 16:10	17.4	0.1997970	0.1993558	0.0001471

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
354.54312322	71.19001442	0.06101426	MINIMUM
170.99794893	250.30591704	0.17902810	MINIMUM
84.53786516	165.77658720	0.36871547	SADDLE
261.27651036	335.94405236	0.38077530	SADDLE
43.91951412	301.76563015	2.04741458	SADDLE
184.51121263	82.39358790	2.18310199	MAXIMUM

Download:

MOID Plots

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