Asteroids

2022AR1 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.596

Aphelion (Q)

2.631

Eccentricity (e)

0.630

Inclination (i)

0.5

deg

Orbit period (P)

748.6

Earth MOID

0.00892

U parameter

9.0

Next Earth close approach

Date

2052-06-17

Nominal distance (from Earth center)

0.15669

23440078

Maximum Brightness

23.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.8

mag

Diameter

29 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-01-06

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.613478

1-sigma variation

0.008972

Unit

Eccentricity (e)

Value

0.630463

1-sigma variation

0.002819

Unit

Inclination (i)

Value

0.5465

1-sigma variation

0.0021

Unit

Long. of Ascending Node (Ω)

Value

206.3301

1-sigma variation

0.1615

Unit

Arg. of Perihelion (ω)

Value

161.8244

1-sigma variation

0.1427

Unit

Mean Anomaly (M)

Value

83.92416

1-sigma variation

6.78632

Unit

Perihelion distance

Value

0.596240

1-sigma variation

Unit

Aphelion distance

Value

2.630716

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.413678

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.387940

1-sigma variation

Unit

MOID

Value

0.008921

1-sigma variation

Unit

Orbit Period

Value

748.5884

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.04942E-5	2.52927E-5	1.85202E-5	-1.43193E-3	1.26339E-3	-6.08859E-2
e	2.52927E-5	7.94743E-6	5.81943E-6	-4.50043E-4	3.97078E-4	-1.91314E-2
i	1.85202E-5	5.81943E-6	4.26173E-6	-3.29284E-4	2.90495E-4	-1.40087E-2
Ω	-1.43193E-3	-4.50043E-4	-3.29284E-4	2.60698E-2	-2.30453E-2	1.08311E0
ω	1.26339E-3	3.97078E-4	2.90495E-4	-2.30453E-2	2.03758E-2	-9.55627E-1
M	-6.08859E-2	-1.91314E-2	-1.40087E-2	1.08311E0	-9.55627E-1	4.60541E1

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

24.805

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

29 - 70*

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

1556

Unit

Source

[1]

Normalized RMS of residuals

Value

0.390405

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-01-06.315851

Unit

Source

[2]

Last Observation

Value

2022-01-14.35652

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

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 2022AR1 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
VENUS	1954-04-12 11:48	> 1 w	0.0076236	0.0052190	0.0809179
EARTH	1972-06-25 13:38	> 1 d	0.0097449	0.0083992	0.0289887
EARTH	1983-01-03 12:23	> 1 mo	0.0678020	0.0085814	1.0234917
EARTH	2011-06-18 14:32	> 1 w	0.1449978	0.0088236	0.4981850
EARTH	2013-07-08 00:16	> 1 mo	0.1704167	0.0089350	0.4030788
EARTH	2021-12-29 01:27	< 1 min	0.0354172	0.0349170	0.0001667
EARTH	2052-06-17 11:05	> 1 mo	0.1566872	0.0091856	1.2221613
EARTH	2054-07-06 06:05	> 1 mo	0.1465833	0.0092927	1.1959620
EARTH	2062-12-24 18:15	> 1 mo	0.1094022	0.0092937	0.9320561
MARS	2072-10-27 20:18	> 1 d	0.0244865	0.0210834	0.0417909
EARTH	2093-06-20 07:34	> 1 mo	0.1131637	0.0095895	1.3769890
EARTH	2104-01-01 07:00	> 1 mo	0.0166428	0.0095991	0.9971059
VENUS	2120-03-07 11:07	> 1 mo	0.0455201	0.0419231	2.7657793

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
51.73128675	357.92380541	0.00891098	MINIMUM
305.82920559	172.63324081	0.00892890	MINIMUM
357.95397206	264.21165893	0.40573121	SADDLE
357.96521706	84.22956360	1.59569201	SADDLE
179.53598781	86.25448457	1.63079074	SADDLE
179.53664525	266.25394735	3.63219411	MAXIMUM

Download:

MOID Plots

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