Asteroids

2020VT4 help

Last update: 2024-04-25 23:56 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Aten

Perihelion (q)

0.724

Aphelion (Q)

1.092

Eccentricity (e)

0.203

Inclination (i)

10.2

deg

Orbit period (P)

316.1

Earth MOID

0.00066

U parameter

5.2

Next Earth close approach

Date

2028-03-11

Nominal distance (from Earth center)

0.16998

25428954

Maximum Brightness

28.5

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

28.6

mag

Diameter

5 - 11*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-11-14

Observatory

ATLAS-MLO, Mauna Loa

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.908047

1-sigma variation

0.000006

Unit

Eccentricity (e)

Value

0.202967

1-sigma variation

0.000042

Unit

Inclination (i)

Value

10.1702

1-sigma variation

0.0024

Unit

Long. of Ascending Node (Ω)

Value

231.3870

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

53.6842

1-sigma variation

0.0011

Unit

Mean Anomaly (M)

Value

70.94910

1-sigma variation

0.00870

Unit

Perihelion distance

Value

0.723744

1-sigma variation

Unit

Aphelion distance

Value

1.092350

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.233145

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.000995

1-sigma variation

Unit

MOID

Value

0.000657

1-sigma variation

Unit

Orbit Period

Value

316.0538

1-sigma variation

Unit

U parameter

Value

5.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.05676E-11	-2.67108E-10	-1.51840E-8	-9.14824E-10	-7.04598E-9	-5.52952E-8
e	-2.67108E-10	1.76663E-9	1.00436E-7	5.93852E-9	4.70179E-8	3.62517E-7
i	-1.51840E-8	1.00436E-7	5.71048E-6	3.38229E-7	2.67351E-6	2.06048E-5
Ω	-9.14824E-10	5.93852E-9	3.38229E-7	2.46064E-8	1.52224E-7	1.26012E-6
ω	-7.04598E-9	4.70179E-8	2.67351E-6	1.52224E-7	1.27316E-6	9.48052E-6
M	-5.52952E-8	3.62517E-7	2.06048E-5	1.26012E-6	9.48052E-6	7.56818E-5

Date of computation: 2024-04-23 10:08 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

28.626

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

5 - 11*

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

[-]

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Sources

No.	Name	Additional
[1]	ESA ODIM	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

1254

Unit

Source

[1]

Normalized RMS of residuals

Value

0.606718

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-11-14.320628

Unit

Source

[2]

Last Observation

Value

2020-11-19.26649

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

34 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2020VT4 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	2014-10-26 14:36	626.2	0.1387373	0.1262107	0.0041870
EARTH	2017-11-06 13:47	533.9	0.0549246	0.0465387	0.0027985
EARTH	2020-11-13 17:20	< 1 min	0.0000451	0.0000450	0.0000000
EARTH	2028-03-11 13:42	28.4	0.1699821	0.1694799	0.0001682
EARTH	2033-11-27 05:42	221.8	0.1223608	0.1204499	0.0006374
EARTH	2039-11-17 17:43	35.6	0.1971580	0.1940832	0.0010249
VENUS	2045-08-19 02:22	61.8	0.0462106	0.0441491	0.0007061
EARTH	2047-01-30 07:27	587.2	0.1970720	0.1969817	0.0000318
EARTH	2047-04-07 00:28	355.7	0.1701494	0.1693554	0.0002708
EARTH	2052-11-13 11:05	< 1 min	0.0252222	0.0218190	0.0011344
EARTH	2060-03-31 21:41	1359.0	0.1597413	0.1572359	0.0009827
EARTH	2065-11-14 11:29	198.8	0.0815666	0.0590616	0.0075018
EARTH	2073-01-18 06:04	> 1 d	0.1984343	0.1971980	0.0005243
EARTH	2073-04-11 20:06	> 1 d	0.1755801	0.1684137	0.0028350
EARTH	2078-11-16 04:18	265.4	0.1452967	0.1234393	0.0072860
EARTH	2085-12-20 06:01	> 1 d	0.1764372	0.1696238	0.0023057
VENUS	2098-07-14 04:56	16.9	0.0498978	0.0495511	0.0001166
EARTH	2098-11-21 21:39	102.8	0.1005668	0.0993347	0.0004109
EARTH	2106-03-12 21:02	312.9	0.1761856	0.1710035	0.0018127
EARTH	2111-11-19 02:23	779.6	0.0739995	0.0579790	0.0053446
EARTH	2119-03-12 09:09	432.2	0.1796969	0.1717427	0.0028368
EARTH	2124-11-27 20:37	1146.5	0.1234709	0.1138785	0.0032070

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