Asteroids

2022KC3 help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.978

Aphelion (Q)

1.552

Eccentricity (e)

0.227

Inclination (i)

0.8

deg

Orbit period (P)

519.7

Earth MOID

0.00417

U parameter

5.2

Next Earth close approach

Date

2049-08-24

Nominal distance (from Earth center)

0.01649

2466795

Maximum Brightness

19.8

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

13 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-05-24

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.264965

1-sigma variation

0.000015

Unit

Eccentricity (e)

Value

0.226834

1-sigma variation

0.000010

Unit

Inclination (i)

Value

0.7643

1-sigma variation

2.806E-5

Unit

Long. of Ascending Node (Ω)

Value

344.4625

1-sigma variation

0.0006

Unit

Arg. of Perihelion (ω)

Value

307.3194

1-sigma variation

0.0006

Unit

Mean Anomaly (M)

Value

353.43033

1-sigma variation

0.01275

Unit

Perihelion distance

Value

0.978027

1-sigma variation

Unit

Aphelion distance

Value

1.551903

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.047937

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.398219

1-sigma variation

Unit

MOID

Value

0.004172

1-sigma variation

Unit

Orbit Period

Value

519.6563

1-sigma variation

Unit

U parameter

Value

5.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.29333E-10	1.58514E-10	4.24138E-10	6.84780E-9	-5.89656E-9	-1.93110E-7
e	1.58514E-10	1.09565E-10	2.93160E-10	4.73249E-9	-4.07495E-9	-1.33477E-7
i	4.24138E-10	2.93160E-10	7.87139E-10	1.32372E-8	-1.14673E-8	-3.57154E-7
Ω	6.84780E-9	4.73249E-9	1.32372E-8	3.81610E-7	-3.51261E-7	-5.76788E-6
ω	-5.89656E-9	-4.07495E-9	-1.14673E-8	-3.51261E-7	3.24934E-7	4.96683E-6
M	-1.93110E-7	-1.33477E-7	-3.57154E-7	-5.76788E-6	4.96683E-6	1.62608E-4

Date of computation: 2025-07-29 02:36 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

26.478

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

13 - 30*

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

155

Unit

Source

[1]

Unobserved

Value

1054

Unit

Source

[1]

Normalized RMS of residuals

Value

0.587392

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-05-23.358253

Unit

Source

[2]

Last Observation

Value

2022-10-25.389869

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

34 (1)

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 2022KC3 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	1954-09-06 11:26	> 1 d	0.1218291	0.0045565	0.1049904
EARTH	1971-07-27 13:57	> 1 w	0.0368608	0.0018471	0.0134712
EARTH	1988-05-15 18:25	997.5	0.1659883	0.1223495	0.0145613
EARTH	1995-08-26 20:33	477.4	0.0245250	0.0192810	0.0017606
EARTH	2005-05-16 10:14	122.3	0.1743182	0.1692634	0.0016851
EARTH	2022-06-10 06:06	< 1 min	0.0164387	0.0164369	0.0000006
EARTH	2049-08-24 12:41	694.4	0.0164895	0.0102762	0.0021102
EARTH	2072-05-18 17:20	> 1 d	0.1587246	0.0142455	0.1099906
EARTH	2082-06-17 16:38	> 1 mo	0.0236497	0.0140615	0.0546256
EARTH	2092-09-09 19:10	> 1 w	0.1784071	0.0050207	0.1981432
EARTH	2105-05-28 00:46	> 1 mo	0.0665692	0.0142855	0.4644876
EARTH	2115-08-22 03:48	> 1 mo	0.0033446	0.0030782	0.0777820

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
28.12443274	225.23230730	0.00417241	MINIMUM
330.83568408	152.83473018	0.01360447	MINIMUM
358.83983182	188.22603204	0.03957285	SADDLE
179.56016594	9.10514600	0.56820200	SADDLE
359.36444430	8.89320354	1.96184907	SADDLE
179.59105578	189.12636380	2.56795604	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2022KC3

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2105-08-21.085	90127.085	-1.199	0.43 ± 0.179	1.97E7	4.91E-8	9.63E-2	-8.50
2105-08-21.782	90127.782	-3.668	0.70 ± 0.000	9.98E5	2.36E-9	9.62E-2	-9.82
2115-08-21.725	93779.725	-1.198	2.47 ± 0.003	7.40E5	3.57E-7	9.64E-2	-7.69


Based on 34 optical observations (of which 1 are rejected as outliers) from 2022/05/23.358 to 2022/10/25.390.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 2.53 and 2.53 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250805 130500.123 UTC.

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