Asteroids

2022DN help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.684

Aphelion (Q)

2.558

Eccentricity (e)

0.578

Inclination (i)

20.3

deg

Orbit period (P)

753.7

Earth MOID

0.00793

U parameter

7.9

Next Earth close approach

Date

2048-08-20

Nominal distance (from Earth center)

0.10815

16178672

Maximum Brightness

20.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

22.8

mag

Diameter

70 - 170*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-02-20

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

1.620787

1-sigma variation

0.001281

Unit

Eccentricity (e)

Value

0.578061

1-sigma variation

0.000371

Unit

Inclination (i)

Value

20.3390

1-sigma variation

0.0104

Unit

Long. of Ascending Node (Ω)

Value

134.4530

1-sigma variation

0.0018

Unit

Arg. of Perihelion (ω)

Value

277.8709

1-sigma variation

0.0099

Unit

Mean Anomaly (M)

Value

59.97078

1-sigma variation

0.93504

Unit

Perihelion distance

Value

0.683873

1-sigma variation

Unit

Aphelion distance

Value

2.557701

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.014341

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.157454

1-sigma variation

Unit

MOID

Value

0.007929

1-sigma variation

Unit

Orbit Period

Value

753.6809

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.64049E-6	4.75243E-7	1.33593E-5	-2.24651E-6	1.26602E-5	-1.19762E-3
e	4.75243E-7	1.37683E-7	3.87052E-6	-6.50760E-7	3.66637E-6	-3.46945E-4
i	1.33593E-5	3.87052E-6	1.08816E-4	-1.82910E-5	1.03024E-4	-9.75279E-3
Ω	-2.24651E-6	-6.50760E-7	-1.82910E-5	3.07734E-6	-1.73466E-5	1.64004E-3
ω	1.26602E-5	3.66637E-6	1.03024E-4	-1.73466E-5	9.79469E-5	-9.24243E-3
M	-1.19762E-3	-3.46945E-4	-9.75279E-3	1.64004E-3	-9.24243E-3	8.74303E-1

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

22.77

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

70 - 170*

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

1508

Unit

Source

[1]

Normalized RMS of residuals

Value

0.440933

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-02-06.21675

Unit

Source

[2]

Last Observation

Value

2022-03-01.080726

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

41 (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 2022DN 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
EARTH	1954-01-29 17:30	> 1 w	0.0713699	0.0113530	0.2741360
EARTH	1982-08-24 00:46	> 1 w	0.1562946	0.0674462	0.2726125
EARTH	1989-02-10 10:46	> 1 w	0.1620078	0.0057678	0.2915067
EARTH	2015-08-19 01:46	> 1 d	0.0795550	0.0747891	0.0153753
EARTH	2022-02-05 05:17	< 1 min	0.0513410	0.0512534	0.0000292
EARTH	2048-08-20 16:01	> 1 w	0.1081477	0.0766648	0.1355885
EARTH	2055-02-10 02:35	> 1 w	0.1405623	0.0018224	0.2475413
EARTH	2086-01-26 17:40	> 1 w	0.1194209	0.0008024	0.2962055
EARTH	2112-08-14 14:03	> 1 d	0.1166368	0.0802767	0.0295675
EARTH	2119-02-02 06:22	> 1 d	0.0325105	0.0012867	0.0239404

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
47.70599391	31.63197028	0.00760627	MINIMUM
307.44530088	223.68243146	0.07567974	MINIMUM
356.57015918	305.72104805	0.42165603	SADDLE
178.79251387	130.56019502	1.64497367	SADDLE
357.83419134	128.30829775	1.67039728	SADDLE
179.97920772	311.22338156	3.50322516	MAXIMUM

Download:

MOID Plots

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