Asteroids

2020FL4 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Amor

Perihelion (q)

1.018

Aphelion (Q)

1.595

Eccentricity (e)

0.221

Inclination (i)

5.5

deg

Orbit period (P)

545.5

Earth MOID

0.02453

U parameter

1.4

Next Earth close approach

Date

2026-03-27

Nominal distance (from Earth center)

0.1092

16336624

Maximum Brightness

24.5

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.9

mag

Diameter

11 - 25*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-03-24

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.306508

1-sigma variation

2.918E-8

Unit

Eccentricity (e)

Value

0.220557

1-sigma variation

0.000001

Unit

Inclination (i)

Value

5.5320

1-sigma variation

2.275E-5

Unit

Long. of Ascending Node (Ω)

Value

14.1944

1-sigma variation

1.882E-5

Unit

Arg. of Perihelion (ω)

Value

200.8394

1-sigma variation

0.0006

Unit

Mean Anomaly (M)

Value

130.22376

1-sigma variation

0.00037

Unit

Perihelion distance

Value

1.018349

1-sigma variation

Unit

Aphelion distance

Value

1.594668

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.566532

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.030268

1-sigma variation

Unit

MOID

Value

0.024526

1-sigma variation

Unit

Orbit Period

Value

545.4648

1-sigma variation

Unit

U parameter

Value

1.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.51535E-16	-2.12359E-14	-2.57128E-13	2.92036E-13	-1.74333E-11	9.81543E-12
e	-2.12359E-14	5.81256E-13	1.10585E-11	-9.35963E-12	4.89612E-10	-2.76829E-10
i	-2.57128E-13	1.10585E-11	5.17345E-10	-3.14409E-10	1.01046E-8	-5.76247E-9
Ω	2.92036E-13	-9.35963E-12	-3.14409E-10	3.54063E-10	-7.95264E-9	4.40250E-9
ω	-1.74333E-11	4.89612E-10	1.01046E-8	-7.95264E-9	4.15771E-7	-2.35511E-7
M	9.81543E-12	-2.76829E-10	-5.76247E-9	4.40250E-9	-2.35511E-7	1.33514E-7

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

26.888

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

11 - 25*

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

1099

Unit

Source

[1]

Unobserved

Value

777

Unit

Source

[1]

Normalized RMS of residuals

Value

0.680112

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-03-24.29237

Unit

Source

[2]

Last Observation

Value

2023-03-28.482185

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

49 (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 2020FL4 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	2014-03-25 06:25	< 1 min	0.1339667	0.1339615	0.0000017
EARTH	2017-04-03 04:30	< 1 min	0.0515214	0.0515184	0.0000010
EARTH	2020-04-09 06:00	< 1 min	0.0266858	0.0266846	0.0000004
EARTH	2023-04-06 17:59	< 1 min	0.0360760	0.0360752	0.0000003
EARTH	2026-03-27 16:35	< 1 min	0.1092036	0.1092021	0.0000005
EARTH	2096-05-29 06:38	< 1 min	0.1417035	0.1416946	0.0000030
EARTH	2099-05-08 14:21	< 1 min	0.0744275	0.0744227	0.0000016
EARTH	2102-04-21 08:21	< 1 min	0.0376536	0.0376518	0.0000006
EARTH	2105-04-18 04:40	< 1 min	0.0319972	0.0319970	0.0000001
EARTH	2108-04-27 06:22	1.1	0.0504695	0.0504658	0.0000013
EARTH	2111-05-21 06:54	1.4	0.0997219	0.0997161	0.0000019
EARTH	2114-06-06 15:17	1.0	0.1781005	0.1780919	0.0000029

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
349.41380401	98.96049445	0.02477220	MINIMUM
183.82493681	296.66692298	0.60410699	SADDLE
4.17760125	297.44394340	2.01044660	SADDLE
182.13038460	115.33084042	2.60086321	MAXIMUM

Download:

MOID Plots

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