Asteroids

2020KB3 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.019

Aphelion (Q)

3.016

Eccentricity (e)

0.495

Inclination (i)

5.6

deg

Orbit period (P)

1046.6

Earth MOID

0.00384

U parameter

3.5

Next Earth close approach

Date

2063-05-16

Nominal distance (from Earth center)

0.12815

19170763

Maximum Brightness

22.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.8

mag

Diameter

29 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-05-20

Observatory

Pan-STARRS 1, 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.017409

1-sigma variation

0.000004

Unit

Eccentricity (e)

Value

0.495032

1-sigma variation

0.000001

Unit

Inclination (i)

Value

5.6364

1-sigma variation

8.097E-6

Unit

Long. of Ascending Node (Ω)

Value

81.9709

1-sigma variation

6.004E-6

Unit

Arg. of Perihelion (ω)

Value

187.1342

1-sigma variation

2.375E-5

Unit

Mean Anomaly (M)

Value

320.47457

1-sigma variation

0.00191

Unit

Perihelion distance

Value

1.018727

1-sigma variation

Unit

Aphelion distance

Value

3.016092

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

2.008677

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.004220

1-sigma variation

Unit

MOID

Value

0.003837

1-sigma variation

Unit

Orbit Period

Value

1046.6209

1-sigma variation

Unit

U parameter

Value

3.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.39043E-11	3.56108E-12	2.56205E-11	-1.55460E-11	7.01096E-11	-7.11963E-9
e	3.56108E-12	9.12120E-13	6.56758E-12	-3.98242E-12	1.80738E-11	-1.82346E-9
i	2.56205E-11	6.56758E-12	6.55640E-11	-3.86000E-11	1.46247E-10	-1.31208E-8
Ω	-1.55460E-11	-3.98242E-12	-3.86000E-11	3.60474E-11	-1.00305E-10	7.96130E-9
ω	7.01096E-11	1.80738E-11	1.46247E-10	-1.00305E-10	5.64282E-10	-3.59537E-8
M	-7.11963E-9	-1.82346E-9	-1.31208E-8	7.96130E-9	-3.59537E-8	3.64558E-6

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

24.803

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

29 - 70*

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

1930

Unit

Source

[1]

Normalized RMS of residuals

Value

0.575374

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-05-20.375682

Unit

Source

[2]

Last Observation

Value

2020-06-12.86476

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

103 (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

2020-06-09

Unit

Source

[3]

Last Observation

Value

2020-06-09

Unit

Source

[3]

Delay (Discarded)

Value

1 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

1 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

2 (0)

Unit

Source

[1]

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
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2020KB3 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	1954-05-16 21:13	> 1 w	0.1101802	0.0230124	0.1336628
EARTH	1977-06-08 19:31	1192.9	0.0107351	0.0049493	0.0019302
EARTH	1997-06-20 12:08	153.4	0.0144331	0.0138788	0.0001852
EARTH	2020-06-13 21:35	< 1 s	0.0080675	0.0080674	0.0000000
EARTH	2063-05-16 21:01	89.1	0.1281486	0.1264142	0.0005783
EARTH	2083-07-04 06:08	62.9	0.0402131	0.0399084	0.0001016
EARTH	2106-06-13 08:23	277.7	0.0121543	0.0113522	0.0002818

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
356.59578031	160.67531320	0.00606616	MINIMUM
0.41136891	347.31357192	2.00326775	SADDLE
180.17903752	346.98006832	2.03260791	SADDLE
180.09411746	166.93341727	4.03237588	MAXIMUM

Download:

MOID Plots

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