Asteroids

2022MM help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.600

Aphelion (Q)

2.531

Eccentricity (e)

0.617

Inclination (i)

19.4

deg

Orbit period (P)

715.4

Earth MOID

0.00126

U parameter

7.5

Next Earth close approach

Date

2058-01-02

Nominal distance (from Earth center)

0.15035

22492613

Maximum Brightness

24.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.4

mag

Diameter

22 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-06-20

Observatory

ATLAS-MLO, Mauna Loa

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

1.565496

1-sigma variation

0.000709

Unit

Eccentricity (e)

Value

0.616852

1-sigma variation

0.000211

Unit

Inclination (i)

Value

19.4306

1-sigma variation

0.0062

Unit

Long. of Ascending Node (Ω)

Value

90.3317

1-sigma variation

1.988E-5

Unit

Arg. of Perihelion (ω)

Value

274.1367

1-sigma variation

0.0044

Unit

Mean Anomaly (M)

Value

241.77770

1-sigma variation

0.40638

Unit

Perihelion distance

Value

0.599817

1-sigma variation

Unit

Aphelion distance

Value

2.531174

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.055441

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.002747

1-sigma variation

Unit

MOID

Value

0.001259

1-sigma variation

Unit

Orbit Period

Value

715.4450

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.02555E-7	1.49743E-7	4.40468E-6	8.53884E-9	-3.08444E-6	-2.88085E-4
e	1.49743E-7	4.46318E-8	1.31364E-6	2.49034E-9	-9.16654E-7	-8.58386E-5
i	4.40468E-6	1.31364E-6	3.87219E-5	6.96031E-8	-2.68256E-5	-2.52494E-3
Ω	8.53884E-9	2.49034E-9	6.96031E-8	3.95116E-10	-6.16943E-8	-4.89517E-6
ω	-3.08444E-6	-9.16654E-7	-2.68256E-5	-6.16943E-8	1.93422E-5	1.76814E-3
M	-2.88085E-4	-8.58386E-5	-2.52494E-3	-4.89517E-6	1.76814E-3	1.65142E-1

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

25.423

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

22 - 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

1.0

Unit

Source

[1]

Unobserved

Value

1183

Unit

Source

[1]

Normalized RMS of residuals

Value

0.427034

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-06-20.493158

Unit

Source

[2]

Last Observation

Value

2022-06-21.445242

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

37 (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 2022MM 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	1993-01-01 01:16	> 1 d	0.1357319	0.0240258	0.0737060
EARTH	1994-12-27 01:18	> 1 d	0.0322287	0.0213617	0.0643660
EARTH	1996-12-21 02:40	> 1 d	0.0805986	0.0224555	0.0845825
EARTH	1998-12-14 23:01	> 1 d	0.1853698	0.0323892	0.0828082
EARTH	2020-06-26 16:23	662.8	0.0975940	0.0724716	0.0083753
EARTH	2022-06-21 18:45	< 1 s	0.0031393	0.0031361	0.0000011
EARTH	2058-01-02 17:16	> 1 d	0.1503538	0.0331279	0.1206291
EARTH	2059-12-20 17:36	> 1 w	0.1120148	0.0329036	0.1212933
EARTH	2069-06-26 09:33	> 1 d	0.0876111	0.0015552	0.1230637
EARTH	2071-06-14 11:12	> 1 d	0.1603630	0.0003812	0.1134894
EARTH	2106-12-27 05:52	> 1 d	0.0340629	0.0331966	0.0086354
EARTH	2118-06-20 17:38	> 1 w	0.0504438	0.0067457	0.1578915

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
304.69372176	167.82924782	0.00042217	MINIMUM
51.97544884	352.21202794	0.02743609	MINIMUM
357.65818308	259.01645822	0.48038333	SADDLE
357.91338402	79.56535847	1.57551994	SADDLE
179.21536824	81.69607670	1.62420833	SADDLE
179.68840062	261.93811496	3.49230181	MAXIMUM

Download:

MOID Plots

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