Asteroids

2022SD help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.006

Aphelion (Q)

1.652

Eccentricity (e)

0.243

Inclination (i)

14.4

deg

Orbit period (P)

559.4

Earth MOID

0.03537

U parameter

8.1

Next Earth close approach

Date

2045-09-05

Nominal distance (from Earth center)

0.16981

25402680

Maximum Brightness

24.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.8

mag

Diameter

19 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-09-16

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

1.328600

1-sigma variation

0.001291

Unit

Eccentricity (e)

Value

0.243062

1-sigma variation

0.000711

Unit

Inclination (i)

Value

14.4419

1-sigma variation

0.0291

Unit

Long. of Ascending Node (Ω)

Value

349.5063

1-sigma variation

0.0016

Unit

Arg. of Perihelion (ω)

Value

36.2655

1-sigma variation

0.0295

Unit

Mean Anomaly (M)

Value

7.56380

1-sigma variation

1.05509

Unit

Perihelion distance

Value

1.005667

1-sigma variation

Unit

Aphelion distance

Value

1.651532

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.038236

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.560651

1-sigma variation

Unit

MOID

Value

0.035370

1-sigma variation

Unit

Orbit Period

Value

559.3578

1-sigma variation

Unit

U parameter

Value

8.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.66704E-6	9.16457E-7	3.63420E-5	-1.93321E-6	-2.73859E-5	-1.36220E-3
e	9.16457E-7	5.05421E-7	1.96790E-5	-1.08191E-6	-1.42352E-5	-7.49295E-4
i	3.63420E-5	1.96790E-5	8.48927E-4	-3.85437E-5	-7.50916E-4	-2.96165E-2
Ω	-1.93321E-6	-1.08191E-6	-3.85437E-5	2.47344E-6	2.19328E-5	1.58479E-3
ω	-2.73859E-5	-1.42352E-5	-7.50916E-4	2.19328E-5	8.71374E-4	2.21591E-2
M	-1.36220E-3	-7.49295E-4	-2.96165E-2	1.58479E-3	2.21591E-2	1.11321E0

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

25.763

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

19 - 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

1099

Unit

Source

[1]

Normalized RMS of residuals

Value

0.411279

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-09-16.149675

Unit

Source

[2]

Last Observation

Value

2022-09-17.24249

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

24 (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 2022SD 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	1973-09-23 17:25	> 1 w	0.1175982	0.0216414	0.1299469
EARTH	1996-09-08 20:18	> 1 w	0.1015536	0.0296794	0.2167711
EARTH	2022-09-16 14:11	5.5	0.0386880	0.0384334	0.0000849
EARTH	2045-09-05 00:06	> 1 w	0.1698064	0.0216846	0.2021925
EARTH	2071-09-17 05:50	> 1 w	0.0409659	0.0357068	0.1170947
EARTH	2094-09-12 13:29	> 1 mo	0.0595969	0.0345286	1.0160894
EARTH	2120-09-24 19:05	> 1 mo	0.1199588	0.0225962	0.5153113

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
333.75226522	251.02866694	0.03620280	MINIMUM
189.05164719	109.14372983	0.67910387	SADDLE
359.84779601	103.39125929	2.00372190	SADDLE
175.33314062	278.50132765	2.64204535	MAXIMUM

Download:

MOID Plots

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