Asteroids

2020VX4 help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.755

Aphelion (Q)

1.673

Eccentricity (e)

0.378

Inclination (i)

7.0

deg

Orbit period (P)

488.5

Earth MOID

0.00197

U parameter

6.5

Next Earth close approach

Date

2028-11-28

Nominal distance (from Earth center)

0.10638

15913810

Maximum Brightness

25.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.4

mag

Diameter

9 - 20*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-11-13

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

1.213892

1-sigma variation

0.000077

Unit

Eccentricity (e)

Value

0.378152

1-sigma variation

0.000051

Unit

Inclination (i)

Value

6.9787

1-sigma variation

0.0029

Unit

Long. of Ascending Node (Ω)

Value

235.9281

1-sigma variation

0.0009

Unit

Arg. of Perihelion (ω)

Value

263.0330

1-sigma variation

0.0184

Unit

Mean Anomaly (M)

Value

80.00943

1-sigma variation

0.16602

Unit

Perihelion distance

Value

0.754856

1-sigma variation

Unit

Aphelion distance

Value

1.672928

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.079395

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.005972

1-sigma variation

Unit

MOID

Value

0.001970

1-sigma variation

Unit

Orbit Period

Value

488.5044

1-sigma variation

Unit

U parameter

Value

6.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.87551E-9	-3.90443E-9	-2.20635E-7	-6.57903E-8	-1.41216E-6	1.27260E-5
e	-3.90443E-9	2.59596E-9	1.46629E-7	4.37162E-8	9.38629E-7	-8.45676E-6
i	-2.20635E-7	1.46629E-7	8.28565E-6	2.47049E-6	5.30308E-5	-4.77882E-4
Ω	-6.57903E-8	4.37162E-8	2.47049E-6	7.36700E-7	1.58120E-5	-1.42498E-4
ω	-1.41216E-6	9.38629E-7	5.30308E-5	1.58120E-5	3.39442E-4	-3.05866E-3
M	1.27260E-5	-8.45676E-6	-4.77882E-4	-1.42498E-4	-3.05866E-3	2.75638E-2

Date of computation: 2025-07-29 02:36 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

27.391

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 - 20*

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

1740

Unit

Source

[1]

Normalized RMS of residuals

Value

0.708127

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-11-13.257933

Unit

Source

[2]

Last Observation

Value

2020-11-18.100326

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

46 (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 2020VX4 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	1951-11-22 01:02	> 1 mo	0.0387177	0.0000296	0.6976501
EARTH	1960-04-04 03:23	> 1 mo	0.1848339	0.0075811	0.4326391
EARTH	1964-05-09 17:52	> 1 w	0.1170980	0.0286761	0.4835276
EARTH	1978-11-20 23:05	> 1 d	0.0258232	0.0006502	0.0793507
EARTH	1987-04-28 20:01	> 1 d	0.0830862	0.0279187	0.0564831
EARTH	2001-11-20 23:56	1357.9	0.0286050	0.0008233	0.0126837
EARTH	2010-05-05 15:14	801.9	0.0444077	0.0301996	0.0073529
EARTH	2020-11-18 21:08	< 1 min	0.0027103	0.0027083	0.0000007
EARTH	2024-11-21 01:12	406.1	0.0297021	0.0178216	0.0039649
EARTH	2028-11-28 10:40	318.4	0.1063773	0.1007392	0.0018794
EARTH	2032-12-20 05:23	108.2	0.1824909	0.1822300	0.0000870
EARTH	2053-04-01 15:03	> 1 d	0.1943382	0.1749174	0.0064769
EARTH	2057-04-25 12:22	> 1 d	0.1259118	0.0935463	0.0108265
EARTH	2061-05-03 06:48	1087.3	0.0491920	0.0249034	0.0101238
EARTH	2065-05-07 02:27	665.7	0.0291394	0.0231791	0.0052416
EARTH	2069-05-12 11:12	508.1	0.1182825	0.0949156	0.0078210
EARTH	2103-11-15 10:29	613.5	0.1036373	0.0797204	0.0079735
EARTH	2107-11-21 02:46	741.5	0.0055506	0.0039262	0.0055580
EARTH	2111-11-15 08:39	141.9	0.1076348	0.0999250	0.0025699

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
299.33169163	315.26225903	0.00197031	MINIMUM
64.46857503	122.40112078	0.02380035	MINIMUM
2.54903973	39.70492430	0.25472413	SADDLE
181.17154203	217.81329216	0.67849298	SADDLE
2.03008772	218.92012189	1.76451240	SADDLE
180.74041489	37.51030632	2.65529199	MAXIMUM

Download:

MOID Plots

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