Asteroids

2020YX3 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.007

Aphelion (Q)

2.160

Eccentricity (e)

0.364

Inclination (i)

17.6

deg

Orbit period (P)

727.8

Earth MOID

0.03852

U parameter

8.9

Next Earth close approach

Date

2026-12-06

Nominal distance (from Earth center)

0.1059

15843147

Maximum Brightness

22.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

27 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-12-22

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

1.583526

1-sigma variation

0.005645

Unit

Eccentricity (e)

Value

0.363773

1-sigma variation

0.002041

Unit

Inclination (i)

Value

17.5740

1-sigma variation

0.0622

Unit

Long. of Ascending Node (Ω)

Value

263.5247

1-sigma variation

0.0130

Unit

Arg. of Perihelion (ω)

Value

159.5058

1-sigma variation

0.1740

Unit

Mean Anomaly (M)

Value

178.99474

1-sigma variation

4.68229

Unit

Perihelion distance

Value

1.007482

1-sigma variation

Unit

Aphelion distance

Value

2.159570

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.066768

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.040458

1-sigma variation

Unit

MOID

Value

0.038518

1-sigma variation

Unit

Orbit Period

Value

727.8406

1-sigma variation

Unit

U parameter

Value

8.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.18666E-5	1.15213E-5	3.51004E-4	-7.33471E-5	9.82004E-4	-2.64318E-2
e	1.15213E-5	4.16550E-6	1.26905E-4	-2.65173E-5	3.55035E-4	-9.55633E-3
i	3.51004E-4	1.26905E-4	3.86632E-3	-8.07805E-4	1.08160E-2	-2.91140E-1
Ω	-7.33471E-5	-2.65173E-5	-8.07805E-4	1.68941E-4	-2.26090E-3	6.08379E-2
ω	9.82004E-4	3.55035E-4	1.08160E-2	-2.26090E-3	3.02650E-2	-8.14524E-1
M	-2.64318E-2	-9.55633E-3	-2.91140E-1	6.08379E-2	-8.14524E-1	2.19238E1

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

25.003

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

27 - 60*

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

1760

Unit

Source

[1]

Normalized RMS of residuals

Value

0.43828

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-12-22.268853

Unit

Source

[2]

Last Observation

Value

2021-01-03.27289

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

20 (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 2020YX3 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	2014-12-24 05:50	> 1 w	0.1614013	0.0232332	0.1437664
EARTH	2016-12-19 21:25	> 1 d	0.1026660	0.0322034	0.0977256
EARTH	2018-12-17 02:19	> 1 d	0.0592039	0.0365320	0.0416746
EARTH	2020-12-14 04:06	< 1 min	0.0404190	0.0399962	0.0001409
EARTH	2022-12-12 13:04	> 1 d	0.0425486	0.0384273	0.0225166
EARTH	2024-12-09 09:23	> 1 w	0.0645624	0.0356852	0.1044085
EARTH	2026-12-06 01:34	> 1 w	0.1059049	0.0278887	0.1841777
EARTH	2028-11-30 09:41	> 1 w	0.1595187	0.0104705	0.2449477

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
12.62284638	339.60135063	0.03821800	MINIMUM
174.88404101	138.00151876	1.15953014	SADDLE
355.64017433	136.15632842	2.01583653	SADDLE
180.70902320	321.87504652	3.14292893	MAXIMUM

Download:

MOID Plots

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