Asteroids

2021VQ27 help

Last update: 2024-04-19 00:04 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.912

Aphelion (Q)

3.134

Eccentricity (e)

0.549

Inclination (i)

0.7

deg

Orbit period (P)

1050.7

Earth MOID

0.00265

U parameter

7.9

Next Earth close approach

Date

2044-12-27

Nominal distance (from Earth center)

0.07318

10947208

Maximum Brightness

36.3

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.9

mag

Diameter

11 - 24*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2021-11-11

Observatory

Pan-STARRS 1, Haleakala

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

2.022636

1-sigma variation

0.002891

Unit

Eccentricity (e)

Value

0.549230

1-sigma variation

0.000677

Unit

Inclination (i)

Value

0.7382

1-sigma variation

0.0009

Unit

Long. of Ascending Node (Ω)

Value

52.4183

1-sigma variation

0.0010

Unit

Arg. of Perihelion (ω)

Value

49.7914

1-sigma variation

0.0002

Unit

Mean Anomaly (M)

Value

283.44270

1-sigma variation

0.60610

Unit

Perihelion distance

Value

0.911743

1-sigma variation

Unit

Aphelion distance

Value

3.133529

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.055814

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.171198

1-sigma variation

Unit

MOID

Value

0.002645

1-sigma variation

Unit

Orbit Period

Value

1050.6911

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.35884E-6	1.95800E-6	2.47879E-6	2.85574E-6	2.06567E-8	-1.75235E-3
e	1.95800E-6	4.58650E-7	5.80623E-7	6.69022E-7	4.96923E-9	-4.10476E-4
i	2.47879E-6	5.80623E-7	7.35549E-7	8.44938E-7	2.49423E-9	-5.19653E-4
Ω	2.85574E-6	6.69022E-7	8.44938E-7	9.93003E-7	1.84022E-8	-5.98683E-4
ω	2.06567E-8	4.96923E-9	2.49423E-9	1.84022E-8	3.35633E-8	-4.33855E-6
M	-1.75235E-3	-4.10476E-4	-5.19653E-4	-5.98683E-4	-4.33855E-6	3.67363E-1

Date of computation: 2024-02-21 14:29 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

26.944

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

11 - 24*

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

877

Unit

Source

[1]

Normalized RMS of residuals

Value

0.472924

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2021-11-09.445536

Unit

Source

[2]

Last Observation

Value

2021-11-23.843958

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

17 (2)

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 2021VQ27 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
MARS	1954-12-01 15:51	> 1 mo	0.0384075	0.0151413	2.2307336
EARTH	1958-02-26 11:51	> 1 mo	0.1429011	0.0138630	3.1538549
EARTH	1960-11-07 08:07	> 1 mo	0.1254764	0.0003272	3.1906415
EARTH	1987-02-15 21:49	> 1 mo	0.0382372	0.0135868	0.3740607
EARTH	1989-11-04 11:31	> 1 w	0.1847700	0.0004656	0.4286266
EARTH	2019-02-27 17:03	> 1 d	0.1735823	0.0554526	0.0396534
EARTH	2021-11-25 09:23	< 1 min	0.0069987	0.0069756	0.0000077
EARTH	2044-12-27 05:33	> 1 mo	0.0731776	0.0108395	0.0523620
EARTH	2067-12-17 12:55	> 1 mo	0.0684334	0.0008714	0.1102525
EARTH	2090-12-08 15:03	> 1 mo	0.0509395	0.0015080	0.1717004
MARS	2097-01-23 21:07	> 1 w	0.0175891	0.0119998	0.1144229
EARTH	2114-02-18 14:01	> 1 w	0.0477052	0.0119668	0.0647643

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