Asteroids

2021VW22 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.990

Aphelion (Q)

1.563

Eccentricity (e)

0.224

Inclination (i)

14.1

deg

Orbit period (P)

526.7

Earth MOID

0.03403

U parameter

7.9

Next Earth close approach

Date

2034-11-11

Nominal distance (from Earth center)

0.151

22589183

Maximum Brightness

25.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.6

mag

Diameter

12 - 28*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2021-11-15

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

1.276372

1-sigma variation

0.000905

Unit

Eccentricity (e)

Value

0.224423

1-sigma variation

0.000555

Unit

Inclination (i)

Value

14.1096

1-sigma variation

0.0252

Unit

Long. of Ascending Node (Ω)

Value

234.4836

1-sigma variation

0.0009

Unit

Arg. of Perihelion (ω)

Value

215.8424

1-sigma variation

0.0773

Unit

Mean Anomaly (M)

Value

258.97929

1-sigma variation

1.03440

Unit

Perihelion distance

Value

0.989925

1-sigma variation

Unit

Aphelion distance

Value

1.562820

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.469142

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.036647

1-sigma variation

Unit

MOID

Value

0.034032

1-sigma variation

Unit

Orbit Period

Value

526.7014

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.19324E-7	4.88550E-7	2.25714E-5	8.48927E-7	-9.47528E-6	-9.35454E-4
e	4.88550E-7	3.07693E-7	1.38901E-5	4.99891E-7	4.15120E-6	-5.63436E-4
i	2.25714E-5	1.38901E-5	6.33368E-4	2.32233E-5	-2.81093E-6	-2.59192E-2
Ω	8.48927E-7	4.99891E-7	2.32233E-5	8.82491E-7	-1.35866E-5	-9.67085E-4
ω	-9.47528E-6	4.15120E-6	-2.81093E-6	-1.35866E-5	5.97542E-3	7.44352E-3
M	-9.35454E-4	-5.63436E-4	-2.59192E-2	-9.67085E-4	7.44352E-3	1.06999E0

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

26.648

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

12 - 28*

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

1411

Unit

Source

[1]

Normalized RMS of residuals

Value

0.521318

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2021-11-15.263295

Unit

Source

[2]

Last Observation

Value

2021-11-16.294191

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

15 (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 2021VW22 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	1959-11-18 13:29	> 1 d	0.0414916	0.0328559	0.0515894
EARTH	1972-11-09 22:00	> 1 d	0.1712339	0.0208473	0.1252934
EARTH	2008-11-24 00:59	> 1 d	0.0811002	0.0292517	0.0803435
EARTH	2021-11-19 06:53	7.0	0.0347391	0.0345462	0.0000643
EARTH	2034-11-11 18:51	> 1 d	0.1509994	0.0240794	0.0864214
EARTH	2070-11-25 21:29	> 1 w	0.0984881	0.0270494	0.1654999
EARTH	2083-11-19 22:07	> 1 d	0.0351835	0.0343999	0.0192530
EARTH	2096-11-10 17:36	> 1 w	0.1649137	0.0228817	0.4732775

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
333.50670556	315.67675712	0.03400263	MINIMUM
193.79036831	178.17933550	0.58314260	SADDLE
3.12172913	171.29043284	2.00034252	SADDLE
176.67443301	344.47747520	2.54119510	MAXIMUM

Download:

MOID Plots

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