Asteroids

2020MK3 help

Last update: 2024-04-26 16:31 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Aten

Perihelion (q)

0.517

Aphelion (Q)

1.100

Eccentricity (e)

0.360

Inclination (i)

2.4

deg

Orbit period (P)

265.5

Earth MOID

0.00406

U parameter

7.0

Next Earth close approach

Date

2025-04-24

Nominal distance (from Earth center)

0.15618

23363612

Maximum Brightness

25.5

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.8

mag

Diameter

18 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-06-27

Observatory

ATLAS-MLO, Mauna Loa

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.808444

1-sigma variation

0.000062

Unit

Eccentricity (e)

Value

0.360300

1-sigma variation

0.000198

Unit

Inclination (i)

Value

2.3629

1-sigma variation

0.0025

Unit

Long. of Ascending Node (Ω)

Value

94.5517

1-sigma variation

0.0024

Unit

Arg. of Perihelion (ω)

Value

334.2727

1-sigma variation

0.0026

Unit

Mean Anomaly (M)

Value

294.36498

1-sigma variation

0.23878

Unit

Perihelion distance

Value

0.517162

1-sigma variation

Unit

Aphelion distance

Value

1.099726

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.451794

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.025470

1-sigma variation

Unit

MOID

Value

0.004058

1-sigma variation

Unit

Orbit Period

Value

265.5052

1-sigma variation

Unit

U parameter

Value

7.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.87654E-9	-1.23416E-8	-1.52725E-7	-1.49506E-7	1.61130E-7	-1.48668E-5
e	-1.23416E-8	3.92920E-8	4.86248E-7	4.75989E-7	-5.13022E-7	4.73310E-5
i	-1.52725E-7	4.86248E-7	6.01809E-6	5.89079E-6	-6.34969E-6	5.85717E-4
Ω	-1.49506E-7	4.75989E-7	5.89079E-6	5.76648E-6	-6.21538E-6	5.73369E-4
ω	1.61130E-7	-5.13022E-7	-6.34969E-6	-6.21538E-6	6.70059E-6	-6.17954E-4
M	-1.48668E-5	4.73310E-5	5.85717E-4	5.73369E-4	-6.17954E-4	5.70154E-2

Date of computation: 2024-04-23 10:08 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

25.787

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

18 - 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 ODIM	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

1397

Unit

Source

[1]

Normalized RMS of residuals

Value

0.625296

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-06-16.581657

Unit

Source

[2]

Last Observation

Value

2020-06-29.567028

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

43 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	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 2020MK3 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
VENUS	1950-02-18 05:07	631.2	0.0203474	0.0129391	0.0095969
EARTH	1950-06-23 19:17	> 1 d	0.0481824	0.0254275	0.0077643
VENUS	1957-03-11 11:33	940.2	0.0406744	0.0144695	0.0170274
VENUS	1958-02-18 07:59	936.2	0.0150534	0.0127824	0.0088034
EARTH	1958-06-23 01:39	> 1 d	0.0522702	0.0227585	0.0099286
VENUS	1965-03-14 16:35	> 1 d	0.0473402	0.0142073	0.0395553
EARTH	1966-06-08 08:48	> 1 w	0.0833912	0.0583056	0.0086554
EARTH	1974-05-14 14:29	> 1 d	0.0817048	0.0651668	0.0060905
EARTH	1982-04-27 17:53	220.1	0.0444654	0.0427032	0.0006363
VENUS	1984-11-16 04:60	436.0	0.0357689	0.0204550	0.0054953
EARTH	1985-07-01 17:48	256.0	0.1693921	0.1525551	0.0056125
VENUS	1985-10-26 06:25	516.5	0.0246934	0.0123305	0.0077165
EARTH	1990-04-23 13:10	170.3	0.0599769	0.0472728	0.0048816
EARTH	1993-07-03 15:33	2.4	0.0789811	0.0630225	0.0053216
EARTH	1998-04-24 09:19	120.2	0.1543942	0.1460751	0.0027796
EARTH	2001-06-30 02:03	37.6	0.0163552	0.0159722	0.0001277
VENUS	2004-07-24 05:43	140.2	0.0490408	0.0417614	0.0024435
VENUS	2005-07-03 19:53	161.9	0.0347262	0.0281302	0.0022406
EARTH	2009-05-16 15:11	988.1	0.0851421	0.0838944	0.0004201
VENUS	2016-04-02 03:47	199.5	0.0365502	0.0267257	0.0033742
VENUS	2017-03-12 17:22	175.2	0.0464291	0.0393725	0.0023700
EARTH	2017-04-22 21:19	18.7	0.0908420	0.0859832	0.0016303
EARTH	2020-07-01 20:26	< 1 min	0.0047404	0.0047308	0.0000032
EARTH	2025-04-24 22:32	114.0	0.1561761	0.1453359	0.0036219
EARTH	2028-07-02 17:28	325.8	0.0169717	0.0050020	0.0044114
EARTH	2033-04-24 06:14	156.8	0.0811492	0.0561588	0.0087577
EARTH	2036-07-03 15:58	321.9	0.1181572	0.0688897	0.0164358
VENUS	2040-03-30 08:34	> 1 d	0.0380741	0.0162789	0.0261505
VENUS	2041-03-08 18:60	> 1 d	0.0197313	0.0150042	0.0182653
EARTH	2041-04-27 20:55	> 1 d	0.0364217	0.0357182	0.0036084
EARTH	2049-05-31 14:37	> 1 w	0.0862317	0.0778275	0.0041882
EARTH	2057-06-30 20:57	> 1 d	0.0114850	0.0044258	0.0510353
VENUS	2060-07-18 21:59	> 1 w	0.0267623	0.0169239	0.1357153
VENUS	2061-06-27 15:44	> 1 w	0.0220055	0.0148487	0.1896759
EARTH	2062-04-25 22:02	> 1 d	0.1770939	0.0424866	0.2322847
EARTH	2065-07-01 13:38	> 1 w	0.0074234	0.0039909	0.2385274
EARTH	2073-05-17 23:52	> 1 mo	0.0854437	0.0485794	0.7239247
EARTH	2081-04-22 20:55	> 1 w	0.0804441	0.0359980	4.5791980
EARTH	2084-07-02 02:46	> 1 mo	0.0051766	0.0041543	2.6019762
EARTH	2089-04-25 00:58	> 1 mo	0.1551181	0.0398625	59.2670911
EARTH	2092-07-02 23:03	> 1 mo	0.0185557	0.0042254	82.7634577
EARTH	2097-04-24 10:17	> 1 mo	0.0697116	0.0270220	141.3115186
EARTH	2100-07-04 07:44	> 1 mo	0.1401874	0.0059119	282.5515206
EARTH	2105-05-02 21:24	> 1 mo	0.0472890	0.0309122	248.0140717
VENUS	2113-02-28 07:34	> 1 mo	0.0429996	0.0181514	482.1392320
EARTH	2113-05-28 21:19	> 1 mo	0.0864430	0.0807385	21.4582872
EARTH	2121-06-30 22:53	> 1 mo	0.0198296	0.0043404	108.2516467

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