Asteroids

2021GQ10

Last update: 2021-05-18 13:44 UTC

Orbital Properties

Epoch

59400.0

MJD

Orbit type

Aten

Perihelion (q)

0.922

Aphelion (Q)

1.038

Eccentricity (e)

0.059

Inclination (i)

11.9

deg

Orbit period (P)

354.5

days

Earth MOID

0.00048

Next Earth close approach

Date

2021-10-21

Nominal distance (from Earth center)

0.06271

9381686

Maximum Brightness

26.7

Orbit Visualiser

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Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.7

Diameter

17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2021-04-14

Observatory

Tokyo-Kiso

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion
Aphelion
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period

Value

1-sigma variation

Unit

Epoch

Value

59400.0

1-sigma variation

Unit

MJD

Semimajor Axis

Value

9.803E-1

1-sigma variation

2.49833E-6

Unit

Eccentricity (e)

Value

0.059070121135744

1-sigma variation

2.75951E-6

Unit

Inclination (i)

Value

11.9

1-sigma variation

1.304E-3

Unit

Ascending Node (Ω)

Value

204.16

1-sigma variation

3.512E-5

Unit

Arg. of Perihelion (ω)

Value

243.27

1-sigma variation

3.612E-3

Unit

Mean Anomaly (M)

Value

193.71

1-sigma variation

4.427E-3

Unit

Perihelion

Value

9.224E-1

1-sigma variation

Unit

Aphelion

Value

1.04

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

4.860E-4

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-4.573E-2

1-sigma variation

Unit

MOID

Value

4.753E-4

1-sigma variation

Unit

Orbit Period

Value

354.53

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.24167E-12	6.66953E-12	3.19711E-9	8.68470E-11	9.00304E-9	-1.10294E-8
e	6.66953E-12	7.61488E-12	3.58750E-9	9.59259E-11	9.78831E-9	-1.20160E-8
i	3.19711E-9	3.58750E-9	1.70121E-6	4.56115E-8	4.67015E-6	-5.72997E-6
Ω	8.68470E-11	9.59259E-11	4.56115E-8	1.23318E-9	1.26345E-7	-1.54945E-7
ω	9.00304E-9	9.78831E-9	4.67015E-6	1.26345E-7	1.30440E-5	-1.59884E-5
M	-1.10294E-8	-1.20160E-8	-5.72997E-6	-1.54945E-7	-1.59884E-5	1.95986E-5

Date of computation: 2021-05-03 11:12 UTC

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)

Taxononomy

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

26.651

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

17*

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

[-]

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

**Estimated value

Observational Information

Arc Length
Unobserved

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

days

Source

[1]

Unobserved

Value

Unit

days

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

0.589951

Unit

arcseconds

Source

[1]

First Observation

Value

2021-04-14.587153

Unit

Source

[2]

Last Observation

Value

2021-04-20.3687

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

96 (3)

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 2021GQ10 from 1950 to 2150

Body	Date	MJD	Nominal distance (au)	Min possible distance (au)	Stretching (au)	Width (au)	Close approach probability
EARTH	1958-10-20.98402	36497.0	0.0479006	0.0275677	1.801E-2	2.365E-7	1.00E0
EARTH	1959-04-10.53599	36668.5	0.1526975	0.1263065	8.125E-3	2.231E-7	1.00E0
EARTH	1959-10-13.76839	36854.8	0.1290321	0.1187696	4.764E-3	1.381E-6	1.00E0
EARTH	1960-04-14.94598	37038.9	0.0188662	0.0024393	1.388E-2	5.466E-8	1.00E0
EARTH	1989-10-21.63856	47820.6	0.0558373	0.0538540	8.997E-4	1.647E-7	1.00E0
EARTH	1990-04-09.05251	47990.1	0.1495380	0.1462957	1.081E-3	1.624E-7	1.00E0
EARTH	1990-10-10.13932	48174.1	0.1439485	0.1403248	1.278E-3	2.035E-7	1.00E0
EARTH	1991-04-16.84534	48362.8	0.0455985	0.0407840	1.537E-3	4.377E-8	1.00E0
EARTH	2019-10-23.64575	58779.6	0.1102534	0.1099938	9.097E-5	3.244E-7	1.00E0
EARTH	2020-10-13.98188	59136.0	0.0984881	0.0984050	3.947E-5	6.010E-7	1.00E0
EARTH	2021-04-14.22877	59318.2	0.0011635	0.0011631	1.376E-7	2.436E-9	1.00E0
EARTH	2021-10-21.54543	59508.5	0.0627127	0.0626637	2.909E-5	5.691E-7	1.00E0
EARTH	2022-04-15.31359	59684.3	0.1779161	0.1778531	2.199E-5	5.891E-7	1.00E0
EARTH	2022-09-30.45345	59852.5	0.1350321	0.1348991	4.908E-5	5.706E-7	1.00E0
EARTH	2053-04-15.34730	71007.3	0.0703324	0.0682913	6.816E-4	6.018E-8	1.00E0
EARTH	2053-11-01.05991	71207.1	0.1239107	0.1221660	6.642E-4	3.991E-7	1.00E0
EARTH	2054-04-13.94509	71370.9	0.1014741	0.0997104	5.930E-4	1.200E-7	1.00E0
EARTH	2054-10-09.47590	71549.5	0.0667899	0.0656245	5.652E-4	1.662E-7	1.00E0
EARTH	2085-04-17.51781	82697.5	0.1471230	0.1363332	3.520E-3	2.223E-7	1.00E0
EARTH	2085-11-14.13183	82908.1	0.1895312	0.1800089	3.583E-3	1.020E-6	1.00E0
EARTH	2086-04-13.83422	83058.8	0.0319720	0.0191769	3.468E-3	4.354E-8	1.00E0
EARTH	2086-10-16.54726	83244.5	0.0473452	0.0470773	2.589E-3	3.565E-7	1.00E0
EARTH	2087-09-23.98713	83587.0	0.1838369	0.1801136	1.479E-3	2.236E-7	1.00E0
EARTH	2116-04-14.87335	94016.9	0.0219201	0.0002501	3.608E-2	1.021E-7	1.00E0
EARTH	2116-10-25.39703	94210.4	0.0821498	0.0417575	1.610E-2	9.204E-7	1.00E0
EARTH	2117-04-14.76514	94381.8	0.1435369	0.1354349	2.774E-3	4.998E-7	1.00E0
EARTH	2117-10-05.58324	94555.6	0.0994937	0.0418434	2.306E-2	1.091E-6	1.00E0

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