Asteroids

2020VX4 help

Last update: 2025-04-09 00:10 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

15913831

Maximum Brightness

25.9

mag

Risk

Object is not in risk list

Object is not in priority 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

235.9280

1-sigma variation

0.0009

Unit

Arg. of Perihelion (ω)

Value

263.0330

1-sigma variation

0.0184

Unit

Mean Anomaly (M)

Value

80.00942

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	5.87490E-9	-3.90429E-9	-2.20621E-7	-6.57873E-8	-1.41206E-6	1.27254E-5
e	-3.90429E-9	2.59604E-9	1.46630E-7	4.37172E-8	9.38624E-7	-8.45691E-6
i	-2.20621E-7	1.46630E-7	8.28551E-6	2.47048E-6	5.30292E-5	-4.77878E-4
Ω	-6.57873E-8	4.37172E-8	2.47048E-6	7.36710E-7	1.58118E-5	-1.42499E-4
ω	-1.41206E-6	9.38624E-7	5.30292E-5	1.58118E-5	3.39427E-4	-3.05860E-3
M	1.27254E-5	-8.45691E-6	-4.77878E-4	-1.42499E-4	-3.05860E-3	2.75638E-2

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

27.418

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

1603

Unit

Source

[1]

Normalized RMS of residuals

Value

0.708128

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 00:57	> 1 mo	0.0386680	0.0000308	0.6973136
EARTH	1960-04-04 03:01	> 1 mo	0.1848646	0.0076045	0.4322883
EARTH	1964-05-09 17:49	> 1 w	0.1170636	0.0286769	0.4833050
EARTH	1978-11-20 23:05	> 1 d	0.0258288	0.0006501	0.0793566
EARTH	1987-04-28 20:02	> 1 d	0.0830821	0.0279190	0.0564880
EARTH	2001-11-20 23:56	1357.9	0.0286041	0.0008233	0.0126840
EARTH	2010-05-05 15:14	801.9	0.0444072	0.0301996	0.0073528
EARTH	2020-11-18 21:08	< 1 min	0.0027103	0.0027083	0.0000007
EARTH	2024-11-21 01:12	406.1	0.0297024	0.0178219	0.0039649
EARTH	2028-11-28 10:40	318.4	0.1063774	0.1007390	0.0018795
EARTH	2032-12-20 05:23	108.1	0.1824909	0.1822305	0.0000868
EARTH	2053-04-01 15:03	> 1 d	0.1943386	0.1749192	0.0064764
EARTH	2057-04-25 12:21	> 1 d	0.1259125	0.0935490	0.0108258
EARTH	2061-05-03 06:48	1087.2	0.0491927	0.0249044	0.0101232
EARTH	2065-05-07 02:27	665.7	0.0291390	0.0231791	0.0052412
EARTH	2069-05-12 11:12	508.2	0.1182820	0.0949145	0.0078212
EARTH	2103-11-15 10:29	613.1	0.1036370	0.0797333	0.0079691
EARTH	2107-11-21 02:46	741.1	0.0055504	0.0039262	0.0055551
EARTH	2111-11-15 08:39	139.4	0.1076347	0.1000322	0.0025342

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
299.30214082	315.80764769	0.00226645	MINIMUM
64.62344327	123.06171269	0.02317675	MINIMUM
2.62437034	40.31219372	0.25456368	SADDLE
181.21266367	218.40047815	0.67607156	SADDLE
2.13765263	219.57379399	1.76407887	SADDLE
180.79012720	38.10232876	2.65214004	MAXIMUM

Download:

MOID Plots

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