Asteroids

2023JM1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.968

Aphelion (Q)

1.543

Eccentricity (e)

0.229

Inclination (i)

3.8

deg

Orbit period (P)

513.9

Earth MOID

0.01992

U parameter

6.5

Next Earth close approach

Date

2030-08-30

Nominal distance (from Earth center)

0.07169

10724147

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

17 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-05-10

Observatory

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.255682

1-sigma variation

0.000098

Unit

Eccentricity (e)

Value

0.228732

1-sigma variation

0.000069

Unit

Inclination (i)

Value

3.7659

1-sigma variation

0.0010

Unit

Long. of Ascending Node (Ω)

Value

230.0722

1-sigma variation

1.562E-5

Unit

Arg. of Perihelion (ω)

Value

60.2835

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

247.21009

1-sigma variation

0.06999

Unit

Perihelion distance

Value

0.968468

1-sigma variation

Unit

Aphelion distance

Value

1.542896

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.057149

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.352556

1-sigma variation

Unit

MOID

Value

0.019920

1-sigma variation

Unit

Orbit Period

Value

513.9464

1-sigma variation

Unit

U parameter

Value

6.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.52250E-9	6.74278E-9	9.92046E-8	-5.67999E-10	1.34662E-8	-6.82965E-6
e	6.74278E-9	4.77450E-9	7.02464E-8	-4.01936E-10	9.53872E-9	-4.83601E-6
i	9.92046E-8	7.02464E-8	1.03364E-6	-5.82684E-9	1.40553E-7	-7.11510E-5
Ω	-5.67999E-10	-4.01936E-10	-5.82684E-9	2.43851E-10	-8.79259E-10	4.07295E-7
ω	1.34662E-8	9.53872E-9	1.40553E-7	-8.79259E-10	2.07824E-8	-9.65907E-6
M	-6.82965E-6	-4.83601E-6	-7.11510E-5	4.07295E-7	-9.65907E-6	4.89831E-3

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

25.988

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

17 - 40*

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

843

Unit

Source

[1]

Normalized RMS of residuals

Value

0.629463

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-05-10.207732

Unit

Source

[2]

Last Observation

Value

2023-06-03.25868

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

56 (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 2023JM1 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	1964-05-18 08:35	> 1 w	0.0776288	0.0170596	0.0840848
EARTH	1971-05-29 23:40	> 1 d	0.0213389	0.0194626	0.0041456
EARTH	1978-07-19 10:36	> 1 w	0.0762897	0.0754691	0.0006525
EARTH	1985-09-01 15:00	> 1 d	0.0801990	0.0664047	0.0087585
EARTH	2016-05-13 18:28	401.1	0.1422152	0.1270517	0.0050579
EARTH	2023-06-01 01:24	< 1 min	0.0258640	0.0258433	0.0000069
EARTH	2030-08-30 21:47	923.9	0.0716865	0.0670182	0.0019821
EARTH	2054-05-21 22:30	> 1 d	0.0526133	0.0198452	0.0199795
EARTH	2061-07-22 15:11	> 1 d	0.0761776	0.0760664	0.0001726
EARTH	2068-09-08 06:02	> 1 d	0.1299371	0.0639560	0.0353513
EARTH	2092-05-16 05:25	> 1 d	0.1157945	0.0178211	0.0900128
EARTH	2099-06-28 05:51	> 1 mo	0.0669351	0.0086003	0.0272478
EARTH	2106-09-08 12:13	1417.0	0.1134458	0.0832567	0.0110118

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
324.74915857	143.80997988	0.02059063	MINIMUM
32.93780657	229.74362801	0.06537029	MINIMUM
6.98972352	197.14986287	0.07563962	SADDLE
180.42678047	8.28656060	0.56344684	SADDLE
359.68342184	7.76289721	1.95154360	SADDLE
179.47377004	187.53593195	2.55801396	MAXIMUM

Download:

MOID Plots

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