Asteroids

2022AN5 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.902

Aphelion (Q)

1.348

Eccentricity (e)

0.198

Inclination (i)

3.4

deg

Orbit period (P)

435.9

Earth MOID

0.01136

U parameter

7.4

Next Earth close approach

Date

2028-01-10

Nominal distance (from Earth center)

0.18595

27817200

Maximum Brightness

25.2

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

2022-01-09

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

1.125025

1-sigma variation

0.000281

Unit

Eccentricity (e)

Value

0.198236

1-sigma variation

0.000329

Unit

Inclination (i)

Value

3.4402

1-sigma variation

0.0052

Unit

Long. of Ascending Node (Ω)

Value

134.1422

1-sigma variation

0.0010

Unit

Arg. of Perihelion (ω)

Value

48.6206

1-sigma variation

0.0121

Unit

Mean Anomaly (M)

Value

31.50903

1-sigma variation

0.41530

Unit

Perihelion distance

Value

0.902005

1-sigma variation

Unit

Aphelion distance

Value

1.348045

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.030554

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.228372

1-sigma variation

Unit

MOID

Value

0.011360

1-sigma variation

Unit

Orbit Period

Value

435.8548

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.89813E-8	9.23214E-8	1.45811E-6	-2.85149E-7	3.40235E-6	-1.16716E-4
e	9.23214E-8	1.07917E-7	1.70442E-6	-3.33125E-7	3.97762E-6	-1.36430E-4
i	1.45811E-6	1.70442E-6	2.69194E-5	-5.26213E-6	6.28211E-5	-2.15475E-3
Ω	-2.85149E-7	-3.33125E-7	-5.26213E-6	1.04591E-6	-1.22438E-5	4.21352E-4
ω	3.40235E-6	3.97762E-6	6.28211E-5	-1.22438E-5	1.46709E-4	-5.02797E-3
M	-1.16716E-4	-1.36430E-4	-2.15475E-3	4.21352E-4	-5.02797E-3	1.72478E-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

25.996

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

[-]

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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

1337

Unit

Source

[1]

Normalized RMS of residuals

Value

0.637302

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-01-09.351524

Unit

Source

[2]

Last Observation

Value

2022-01-25.17399

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

26 (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

Close Approaches for 2022AN5 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	1960-06-16 09:57	827.0	0.1511521	0.1009129	0.0170042
EARTH	1966-06-02 22:43	378.8	0.0582343	0.0561164	0.0008750
MARS	1968-01-03 12:12	819.1	0.0443806	0.0380956	0.0022782
EARTH	1972-03-19 19:11	> 1 w	0.1024393	0.0943981	0.0027144
EARTH	1972-07-11 21:33	> 1 w	0.1992062	0.1792977	0.0067211
EARTH	1978-01-22 12:37	> 1 d	0.0173740	0.0121548	0.0178208
EARTH	1991-06-13 20:58	> 1 d	0.0819476	0.0511724	0.0578555
EARTH	1997-02-23 09:44	> 1 mo	0.0816653	0.0356873	0.0493331
EARTH	2016-06-05 08:18	> 1 d	0.0556627	0.0513513	0.0054472
EARTH	2022-01-28 06:17	< 1 min	0.0261087	0.0259818	0.0000423
EARTH	2028-01-10 20:33	807.7	0.1859465	0.1433788	0.0142050
EARTH	2047-06-07 23:41	> 1 d	0.0522041	0.0521834	0.0012236
EARTH	2053-01-01 07:24	> 1 mo	0.1847323	0.0326358	0.0899165
EARTH	2053-03-25 08:44	> 1 mo	0.1054546	0.0941676	0.0136241
EARTH	2053-07-08 21:57	> 1 mo	0.1900252	0.0900814	0.0700772
EARTH	2059-01-22 16:46	> 1 w	0.0186689	0.0104878	0.1208360
EARTH	2072-06-10 09:41	> 1 mo	0.0548519	0.0519179	0.5063321
EARTH	2078-01-29 22:50	> 1 mo	0.0313178	0.0107117	2.9205569
EARTH	2097-06-13 22:47	> 1 mo	0.0924581	0.0516081	15.6895605
EARTH	2103-04-11 06:35	> 1 mo	0.1077219	0.1053724	1.0082475
EARTH	2109-01-22 17:25	> 1 mo	0.0253577	0.0096988	14.6209183
EARTH	2122-06-10 04:16	> 1 mo	0.0522496	0.0518373	21.5402485

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
310.28086450	21.14984928	0.01132660	MINIMUM
62.69976670	153.52573863	0.05241828	MINIMUM
9.93676243	91.58740530	0.10743676	SADDLE
184.82476179	265.12333894	0.35040418	SADDLE
5.37941763	266.02197751	1.90315202	SADDLE
183.19656062	83.78627069	2.34512556	MAXIMUM

Download:

MOID Plots

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