Asteroids

2020FK1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.866

Aphelion (Q)

1.037

Eccentricity (e)

0.090

Inclination (i)

9.0

deg

Orbit period (P)

338.9

Earth MOID

0.00058

U parameter

5.9

Next Earth close approach

Date

2033-03-18

Nominal distance (from Earth center)

0.05224

7815497

Maximum Brightness

23.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.3

mag

Diameter

9 - 21*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-03-17

Observatory

Mt. Lemmon Survey

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

0.951345

1-sigma variation

0.000022

Unit

Eccentricity (e)

Value

0.089742

1-sigma variation

0.000033

Unit

Inclination (i)

Value

8.9803

1-sigma variation

0.0035

Unit

Long. of Ascending Node (Ω)

Value

174.9774

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

234.8528

1-sigma variation

0.0088

Unit

Mean Anomaly (M)

Value

161.82721

1-sigma variation

0.08384

Unit

Perihelion distance

Value

0.865970

1-sigma variation

Unit

Aphelion distance

Value

1.036721

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.000617

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.108120

1-sigma variation

Unit

MOID

Value

0.000578

1-sigma variation

Unit

Orbit Period

Value

338.9267

1-sigma variation

Unit

U parameter

Value

5.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.00291E-10	-6.77008E-10	-6.14458E-8	-5.03574E-9	1.77661E-7	-1.87121E-6
e	-6.77008E-10	1.07754E-9	1.10671E-7	6.80983E-9	-1.91651E-7	2.46167E-6
i	-6.14458E-8	1.10671E-7	1.22493E-5	6.17844E-7	-1.35065E-5	2.17800E-4
Ω	-5.03574E-9	6.80983E-9	6.17844E-7	5.08679E-8	-1.78972E-6	1.88368E-5
ω	1.77661E-7	-1.91651E-7	-1.35065E-5	-1.78972E-6	7.78243E-5	-6.85800E-4
M	-1.87121E-6	2.46167E-6	2.17800E-4	1.88368E-5	-6.85800E-4	7.02960E-3

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

27.267

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

9 - 21*

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

2018

Unit

Source

[1]

Normalized RMS of residuals

Value

0.63174

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-03-17.15109

Unit

Source

[2]

Last Observation

Value

2020-03-18.16233

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

58 (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 2020FK1 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	1954-11-01 09:59	> 1 w	0.1817443	0.1762102	0.0025187
EARTH	1964-03-20 09:55	172.5	0.0556838	0.0525718	0.0010378
EARTH	1964-08-03 13:46	819.1	0.1414629	0.1401832	0.0004441
EARTH	1973-03-14 15:01	24.9	0.0733688	0.0346860	0.0129174
EARTH	1973-09-06 05:44	> 1 d	0.1341899	0.1333122	0.0012940
EARTH	1982-10-24 02:13	> 1 d	0.1756060	0.1707276	0.0020524
EARTH	1992-03-27 07:02	713.4	0.1004715	0.0894420	0.0036913
EARTH	1992-07-20 08:47	1351.5	0.1522291	0.1494228	0.0010714
EARTH	2001-03-14 17:46	51.1	0.0456956	0.0373129	0.0027949
EARTH	2001-08-31 21:02	> 1 d	0.1307020	0.1303933	0.0001762
EARTH	2010-11-05 11:39	1404.8	0.1846147	0.1837187	0.0003084
EARTH	2020-03-15 09:58	< 1 min	0.0038175	0.0038138	0.0000012
EARTH	2020-09-08 20:32	36.8	0.1025646	0.1024319	0.0000443
EARTH	2033-03-18 02:03	269.5	0.0522434	0.0439954	0.0027511
EARTH	2033-08-25 08:57	1147.9	0.1058414	0.1050341	0.0003581
EARTH	2045-03-17 11:37	36.2	0.1931593	0.1904651	0.0008981
EARTH	2045-10-24 14:04	879.4	0.1584532	0.1573200	0.0003867
EARTH	2058-03-17 08:37	330.5	0.0400420	0.0276481	0.0041323
EARTH	2058-08-25 20:15	> 1 d	0.1074628	0.1070502	0.0003232
EARTH	2070-03-16 08:35	525.2	0.0224174	0.0011518	0.0094635
EARTH	2070-08-26 10:14	> 1 d	0.1104934	0.1085069	0.0011714
EARTH	2081-03-17 00:24	> 1 d	0.1625018	0.0031592	0.0956212
EARTH	2081-10-08 15:07	> 1 mo	0.1433371	0.1336935	0.0313216
EARTH	2093-03-31 04:38	> 1 w	0.1424131	0.0412421	0.1391910
EARTH	2093-07-26 02:22	> 1 w	0.1527628	0.1299132	0.0802284
EARTH	2104-03-16 15:46	> 1 d	0.0226394	0.0024425	0.1357157
EARTH	2104-08-22 14:34	> 1 w	0.1164410	0.1152170	0.0131733
EARTH	2114-12-05 21:25	> 1 mo	0.1867612	0.1863824	0.0422092
EARTH	2115-04-08 10:04	> 1 mo	0.1619274	0.0614506	1.2943190
EARTH	2115-07-16 10:09	> 1 mo	0.1693648	0.1412345	0.8268786
EARTH	2125-03-18 09:35	> 1 mo	0.1837013	0.0028956	2.5118281
EARTH	2125-10-10 12:25	> 1 mo	0.1493819	0.1397613	0.7688745

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
120.77465413	71.82682180	0.00013450	MINIMUM
294.96931985	238.88657372	0.10078626	MINIMUM
216.01768912	160.37596176	0.15927287	SADDLE
22.14165809	332.15703492	0.18198209	SADDLE
353.83540016	121.46366629	1.87160941	SADDLE
167.01232302	294.56983777	2.02459212	MAXIMUM

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MOID Plots

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