Asteroids

2022SK4 help

Last update: 2025-02-19 13:28 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.580

Aphelion (Q)

1.097

Eccentricity (e)

0.309

Inclination (i)

15.2

deg

Orbit period (P)

280.4

Earth MOID

0.00008

U parameter

5.9

Next Earth close approach

Date

2032-09-25

Nominal distance (from Earth center)

0.10328

15449983

Maximum Brightness

27.7

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

30.2

mag

Diameter

2.4 - 5*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-09-20

Observatory

SONEAR Observatory, Oliveira

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.838498

1-sigma variation

0.000016

Unit

Eccentricity (e)

Value

0.308733

1-sigma variation

0.000098

Unit

Inclination (i)

Value

15.1802

1-sigma variation

0.0071

Unit

Long. of Ascending Node (Ω)

Value

176.5767

1-sigma variation

2.699E-5

Unit

Arg. of Perihelion (ω)

Value

37.5856

1-sigma variation

0.0039

Unit

Mean Anomaly (M)

Value

266.07320

1-sigma variation

0.01964

Unit

Perihelion distance

Value

0.579626

1-sigma variation

Unit

Aphelion distance

Value

1.097370

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.385844

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.000124

1-sigma variation

Unit

MOID

Value

0.000084

1-sigma variation

Unit

Orbit Period

Value

280.4475

1-sigma variation

Unit

U parameter

Value

5.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.56132E-10	-1.56546E-9	-1.13271E-7	7.94380E-11	-6.13704E-8	-3.12829E-7
e	-1.56546E-9	9.63875E-9	6.97973E-7	-6.91043E-10	3.81040E-7	1.89607E-6
i	-1.13271E-7	6.97973E-7	5.05493E-5	-5.14593E-8	2.76167E-5	1.37070E-4
Ω	7.94380E-11	-6.91043E-10	-5.14593E-8	7.28710E-10	-3.63073E-8	-5.09581E-8
ω	-6.13704E-8	3.81040E-7	2.76167E-5	-3.63073E-8	1.52045E-5	7.36180E-5
M	-3.12829E-7	1.89607E-6	1.37070E-4	-5.09581E-8	7.36180E-5	3.85653E-4

Date of computation: 2025-02-19 13:28 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

30.231

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

2.4 - 5*

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

961

Unit

Source

[1]

Normalized RMS of residuals

Value

0.423589

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-09-20.03095

Unit

Source

[2]

Last Observation

Value

2022-09-21.04956

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

18 (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

Close Approaches for 2022SK4 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	1951-09-15 18:53	9.8	0.1454463	0.1391702	0.0020927
EARTH	1954-09-15 16:14	36.0	0.0896782	0.0856661	0.0013378
EARTH	1957-09-16 19:10	43.2	0.0416014	0.0399462	0.0005518
EARTH	1960-09-18 20:27	27.9	0.0065632	0.0058829	0.0002270
EARTH	1963-09-18 08:46	60.6	0.0229872	0.0210841	0.0006345
EARTH	1966-09-16 10:28	59.4	0.0588638	0.0552875	0.0011924
EARTH	1969-09-15 08:58	22.4	0.1044745	0.0995076	0.0016562
EARTH	1972-09-15 06:56	20.0	0.1554282	0.1492809	0.0020496
EARTH	2001-10-19 19:15	98.9	0.1974095	0.1894955	0.0026684
EARTH	2004-10-17 07:15	254.0	0.1583679	0.1516566	0.0022767
EARTH	2007-10-13 15:45	434.8	0.1265096	0.1207904	0.0019461
EARTH	2010-10-07 15:34	558.8	0.0998645	0.0944804	0.0018239
EARTH	2013-10-01 03:51	581.5	0.0736383	0.0679172	0.0019233
EARTH	2016-09-25 12:09	497.6	0.0465911	0.0403976	0.0020712
EARTH	2019-09-22 03:56	330.5	0.0185410	0.0127154	0.0019432
EARTH	2022-09-19 21:40	< 1 min	0.0000998	0.0000995	0.0000001
EARTH	2032-09-25 02:15	198.9	0.1032768	0.0991176	0.0013870
EARTH	2045-09-20 19:45	84.8	0.1404061	0.1315142	0.0029641
EARTH	2055-09-20 04:33	48.3	0.0067823	0.0008586	0.0030041
EARTH	2072-09-23 12:13	> 1 w	0.0887756	0.0086005	0.1894677
EARTH	2082-09-20 01:40	> 1 d	0.0698087	0.0003677	0.2911344
EARTH	2089-10-13 11:46	> 1 mo	0.1964509	0.1088645	0.1487963
EARTH	2099-09-21 05:39	> 1 d	0.0377707	0.0001705	0.1775281
EARTH	2109-09-21 13:59	> 1 d	0.1174550	0.0022078	0.1452133
EARTH	2116-10-09 10:11	> 1 mo	0.1795604	0.0803128	0.2246530

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
129.76592024	255.61286985	0.00032390	MINIMUM
17.76345098	134.49486397	0.45661861	SADDLE
8.33404674	301.29368433	1.56561468	SADDLE
179.68496622	111.93327415	2.09652342	MAXIMUM

Download:

MOID Plots

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