Asteroids

2022ST3 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.695

Aphelion (Q)

3.393

Eccentricity (e)

0.660

Inclination (i)

2.6

deg

Orbit period (P)

1067.4

Earth MOID

0.04250

U parameter

9.0

Next Earth close approach

Date

2090-03-05

Nominal distance (from Earth center)

0.14303

21396963

Maximum Brightness

23.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.1

mag

Diameter

26 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-09-18

Observatory

Kitt Peak-Bok

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

2.043980

1-sigma variation

0.025306

Unit

Eccentricity (e)

Value

0.659878

1-sigma variation

0.004897

Unit

Inclination (i)

Value

2.6457

1-sigma variation

0.0174

Unit

Long. of Ascending Node (Ω)

Value

87.9545

1-sigma variation

0.2093

Unit

Arg. of Perihelion (ω)

Value

353.2678

1-sigma variation

0.2104

Unit

Mean Anomaly (M)

Value

79.78348

1-sigma variation

8.19771

Unit

Perihelion distance

Value

0.695204

1-sigma variation

Unit

Aphelion distance

Value

3.392757

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.287090

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

2.332698

1-sigma variation

Unit

MOID

Value

0.042504

1-sigma variation

Unit

Orbit Period

Value

1067.3662

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.40368E-4	1.23915E-4	4.40794E-4	4.79596E-3	-4.80337E-3	-2.07447E-1
e	1.23915E-4	2.39784E-5	8.52896E-5	9.26768E-4	-9.28167E-4	-4.01421E-2
i	4.40794E-4	8.52896E-5	3.03626E-4	3.34153E-3	-3.34755E-3	-1.42795E-1
Ω	4.79596E-3	9.26768E-4	3.34153E-3	4.37940E-2	-4.40355E-2	-1.55368E0
ω	-4.80337E-3	-9.28167E-4	-3.34755E-3	-4.40355E-2	4.42824E-2	1.55608E0
M	-2.07447E-1	-4.01421E-2	-1.42795E-1	-1.55368E0	1.55608E0	6.72024E1

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

25.081

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

26 - 60*

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

1287

Unit

Source

[1]

Normalized RMS of residuals

Value

0.289728

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-09-18.34923

Unit

Source

[2]

Last Observation

Value

2022-09-21.33334

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

14 (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 2022ST3 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	1973-02-15 03:06	> 1 mo	0.0927650	0.0424831	0.9564754
EARTH	1978-10-20 11:13	> 1 mo	0.1725428	0.0521298	2.0638697
VENUS	1978-11-09 07:15	> 1 mo	0.0461129	0.0031218	2.6777086
EARTH	2017-02-17 06:11	> 1 mo	0.0936893	0.0428851	0.5877529
EARTH	2022-09-27 21:11	1.7	0.0460903	0.0451264	0.0003213
EARTH	2090-03-05 23:07	> 1 mo	0.1430299	0.0428103	0.4938003
EARTH	2098-09-18 16:43	> 1 w	0.1801373	0.0458587	0.2192211
VENUS	2110-07-22 08:55	> 1 mo	0.0119462	0.0021830	0.2752308

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
38.50732261	54.39638443	0.04261259	MINIMUM
320.64577426	264.28781866	0.04595862	MINIMUM
359.36250312	339.02062226	0.28955436	SADDLE
359.40080964	159.11932997	1.71216026	SADDLE
179.87622158	159.76609606	2.37593533	SADDLE
179.89054803	339.77590121	4.37757951	MAXIMUM

Download:

MOID Plots

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