Asteroids

2023MR1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.934

Aphelion (Q)

4.327

Eccentricity (e)

0.645

Inclination (i)

8.3

deg

Orbit period (P)

1558.4

Earth MOID

0.01315

U parameter

4.4

Next Earth close approach

Date

2040-09-12

Nominal distance (from Earth center)

0.13457

20131062

Maximum Brightness

22.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.7

mag

Diameter

50 - 110*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-06-18

Observatory

Pan-STARRS 2, 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

2.630580

1-sigma variation

0.000029

Unit

Eccentricity (e)

Value

0.644911

1-sigma variation

0.000004

Unit

Inclination (i)

Value

8.3028

1-sigma variation

3.509E-5

Unit

Long. of Ascending Node (Ω)

Value

277.6340

1-sigma variation

1.800E-5

Unit

Arg. of Perihelion (ω)

Value

31.9552

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

196.23180

1-sigma variation

0.00324

Unit

Perihelion distance

Value

0.934091

1-sigma variation

Unit

Aphelion distance

Value

4.327069

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.025113

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

2.410550

1-sigma variation

Unit

MOID

Value

0.013147

1-sigma variation

Unit

Orbit Period

Value

1558.3883

1-sigma variation

Unit

U parameter

Value

4.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.43750E-10	1.18861E-10	9.35016E-10	-3.06895E-10	-1.59778E-9	-9.42154E-8
e	1.18861E-10	1.67454E-11	1.31769E-10	-4.33736E-11	-2.24233E-10	-1.32724E-8
i	9.35016E-10	1.31769E-10	1.23116E-9	-5.32402E-10	-1.54150E-9	-1.04412E-7
Ω	-3.06895E-10	-4.33736E-11	-5.32402E-10	3.23975E-10	2.83179E-10	3.42796E-8
ω	-1.59778E-9	-2.24233E-10	-1.54150E-9	2.83179E-10	3.83471E-9	1.78354E-7
M	-9.42154E-8	-1.32724E-8	-1.04412E-7	3.42796E-8	1.78354E-7	1.05204E-5

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

23.714

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

50 - 110*

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

811

Unit

Source

[1]

Normalized RMS of residuals

Value

0.393689

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-06-18.280691

Unit

Source

[2]

Last Observation

Value

2023-06-28.76307

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

36 (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

2023-06-29

Unit

Source

[3]

Last Observation

Value

2023-06-29

Unit

Source

[3]

Delay (Discarded)

Value

2 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

1 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

3 (0)

Unit

Source

[1]

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
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2023MR1 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	1955-06-16 06:26	318.0	0.0984013	0.0916223	0.0022625
EARTH	1972-06-30 07:12	539.0	0.0267335	0.0228592	0.0013883
EARTH	2006-06-08 13:02	175.1	0.1741483	0.1690224	0.0017090
EARTH	2023-06-29 13:58	< 1 s	0.0152846	0.0152846	0.0000000
EARTH	2040-09-12 17:29	348.1	0.1345678	0.1336771	0.0003280
EARTH	2057-09-23 11:03	558.8	0.1867195	0.1768238	0.0034023
EARTH	2087-06-05 08:25	726.5	0.1541065	0.1324817	0.0072207
EARTH	2104-06-11 15:26	441.4	0.1118693	0.1006180	0.0037509
EARTH	2121-09-17 19:55	340.3	0.1391656	0.1365214	0.0009183

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
343.06347602	171.79251367	0.01049422	MINIMUM
359.79528224	27.10567640	1.92133005	SADDLE
180.07438418	27.03114114	3.34546431	SADDLE
179.76164597	206.88391704	5.33924657	MAXIMUM

Download:

MOID Plots

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