Asteroids

2021VQ10 help

Last update: 2025-12-09 11:05 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.691

Aphelion (Q)

1.737

Eccentricity (e)

0.431

Inclination (i)

9.9

deg

Orbit period (P)

488.4

Earth MOID

0.00083

U parameter

7.7

Next Earth close approach

Date

2029-11-11

Nominal distance (from Earth center)

0.09791

14647565

Maximum Brightness

25.1

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

11 - 24*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2021-11-11

Observatory

Pan-STARRS 1, Haleakala

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

1.213712

1-sigma variation

0.000551

Unit

Eccentricity (e)

Value

0.430840

1-sigma variation

0.000212

Unit

Inclination (i)

Value

9.9216

1-sigma variation

0.0098

Unit

Long. of Ascending Node (Ω)

Value

44.6494

1-sigma variation

0.0019

Unit

Arg. of Perihelion (ω)

Value

269.3109

1-sigma variation

0.0891

Unit

Mean Anomaly (M)

Value

51.87534

1-sigma variation

0.58377

Unit

Perihelion distance

Value

0.690796

1-sigma variation

Unit

Aphelion distance

Value

1.736629

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.002320

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.026719

1-sigma variation

Unit

MOID

Value

0.000834

1-sigma variation

Unit

Orbit Period

Value

488.3960

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.04005E-7	-1.16528E-7	-5.41479E-6	-1.06390E-6	4.91113E-5	3.21870E-4
e	-1.16528E-7	4.49950E-8	2.08410E-6	4.12331E-7	-1.88692E-5	-1.23379E-4
i	-5.41479E-6	2.08410E-6	9.66720E-5	1.90687E-5	-8.75903E-4	-5.73306E-3
Ω	-1.06390E-6	4.12331E-7	1.90687E-5	3.78673E-6	-1.72482E-4	-1.12646E-3
ω	4.91113E-5	-1.88692E-5	-8.75903E-4	-1.72482E-4	7.93981E-3	5.19977E-2
M	3.21870E-4	-1.23379E-4	-5.73306E-3	-1.12646E-3	5.19977E-2	3.40784E-1

Date of computation: 2025-12-09 11:05 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

26.974

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 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

1489

Unit

Source

[1]

Normalized RMS of residuals

Value

0.527192

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2021-11-09.17612

Unit

Source

[2]

Last Observation

Value

2021-11-12.126365

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

13 (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

[-]

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 2021VQ10 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	1951-11-11 11:42	> 1 mo	0.0904502	0.0022569	1.4001214
EARTH	1955-10-27 00:03	> 1 mo	0.1725309	0.0089553	1.2476639
EARTH	1971-05-01 12:10	> 1 w	0.0193072	0.0160878	0.1945037
EARTH	1984-11-09 17:56	> 1 mo	0.0699947	0.0019004	1.1801575
EARTH	1988-10-28 21:16	> 1 mo	0.1429941	0.0036103	1.1249460
EARTH	2008-04-30 04:05	> 1 d	0.0154415	0.0146891	0.0180191
EARTH	2021-11-07 02:57	< 1 min	0.0043621	0.0043517	0.0000035
EARTH	2025-11-08 02:19	1056.4	0.0240000	0.0007915	0.0148474
EARTH	2029-11-11 15:59	146.2	0.0979129	0.0914196	0.0021645
EARTH	2033-11-15 12:46	1139.2	0.1801073	0.1242672	0.0186140
EARTH	2060-04-25 15:35	> 1 d	0.1371280	0.0090583	0.1448137
EARTH	2064-04-29 00:23	> 1 w	0.0686096	0.0077147	0.1429230
EARTH	2068-05-01 15:01	> 1 d	0.0182417	0.0073851	0.0947605
EARTH	2072-04-30 14:47	> 1 w	0.0374781	0.0076289	0.1812929
EARTH	2076-04-28 04:33	> 1 w	0.0868685	0.0081381	0.3222767
EARTH	2080-04-24 18:34	> 1 w	0.1578417	0.0097225	0.3821464
EARTH	2109-11-16 04:10	> 1 d	0.1444726	0.0064350	0.1466745
EARTH	2113-11-12 22:55	> 1 d	0.0763053	0.0051821	0.0759560
EARTH	2117-11-10 09:22	1015.5	0.0228993	0.0038626	0.0123464
EARTH	2121-11-10 00:00	> 1 d	0.0147056	0.0045419	0.0697385
EARTH	2125-11-13 13:34	> 1 w	0.0864026	0.0055627	0.2015756

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
64.85274254	303.89878962	0.00083431	MINIMUM
293.41572147	119.52552377	0.00969554	MINIMUM
358.78723351	211.46108072	0.35553240	SADDLE
179.48094237	32.00583785	0.78383792	SADDLE
358.55506330	31.05627475	1.67081961	SADDLE
179.32552052	211.89824479	2.74247831	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2021VQ10

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2054-11-07.310	71578.310	-1.637	0.000	1.08 ± 0.015	2.19E6	6.41E-8	9.88E-2	-7.94
2055-11-07.558	71943.558	-1.659	0.000	0.76 ± 0.012	7.86E5	2.61E-7	9.89E-2	-7.34
2056-11-06.788	72308.788	-1.612	0.000	0.18 ± 0.039	4.85E6	5.65E-8	9.86E-2	-8.02
2066-11-07.223	75961.223	-1.995	0.000	0.25 ± 0.012	1.45E6	9.42E-8	9.84E-2	-7.93
2067-11-07.522	76326.522	-1.461	0.000	1.03 ± 0.019	3.61E6	8.78E-8	9.87E-2	-7.97
2076-11-06.656	79613.656	-1.055	0.000	0.91 ± 0.013	8.60E6	4.72E-8	9.87E-2	-8.32
2084-11-06.726	82535.726	-0.933	0.000	0.50 ± 0.017	1.69E6	3.59E-7	9.89E-2	-7.50
2084-11-06.733	82535.733	-0.954	0.000	1.24 ± 0.011	5.57E6	7.61E-8	9.87E-2	-8.17
2085-05-05.020	82715.020	-1.480	2.352	1.27 ± 0.288	1.43E5	9.27E-9	9.51E-2	-9.11
2088-11-06.652	83996.652	-0.776	0.000	0.77 ± 0.034	5.95E6	1.00E-7	9.91E-2	-8.08
2095-11-07.440	86553.440	-1.182	0.000	1.16 ± 0.013	3.82E5	5.37E-7	9.89E-2	-7.39
2101-05-06.007	88559.007	-1.471	0.737	1.16 ± 0.280	1.77E7	4.09E-10	9.51E-2	-10.56
2107-05-06.409	90750.409	-0.482	0.000	0.21 ± 1.012	1.97E8	2.99E-9	9.87E-2	-9.72
2107-11-08.406	90936.406	-1.063	0.000	0.57 ± 0.013	1.34E6	3.87E-7	9.87E-2	-7.60
2111-11-08.245	92397.245	-0.792	0.000	1.07 ± 0.000	1.81E8	2.26E-9	9.87E-2	-9.86
2114-11-08.134	93493.134	-1.534	0.000	0.64 ± 0.000	6.12E7	4.40E-9	9.89E-2	-9.58
2118-05-06.099	94768.099	-0.816	0.000	0.63 ± 0.327	4.48E7	1.31E-8	9.85E-2	-9.13
2118-05-06.134	94768.134	-1.391	0.000	0.90 ± 0.313	1.45E8	1.66E-9	9.82E-2	-10.03
2118-11-08.032	94954.032	-1.501	0.000	0.25 ± 0.000	4.70E7	6.89E-9	9.87E-2	-9.41


Based on 13 optical observations (of which 0 are rejected as outliers) from 2021/11/09.176 to 2021/11/12.126.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.27 and 1.27 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250805 130500.123 UTC.

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Download Impactor Table as: