Asteroids

2021GM10

Last update: 2021-05-06 00:33 UTC

Orbital Properties

Epoch

59400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.952

Aphelion (Q)

1.316

Eccentricity (e)

0.16

Inclination (i)

deg

Orbit period (P)

441.1

days

Earth MOID

0.02965

Next Earth close approach

Date

2021-05-10

Nominal distance (from Earth center)

0.03262

4879203

Maximum Brightness

22.4

Orbit Visualiser

Click the button to start Orbit Visualiser

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.9

Diameter

40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2021-04-13

Observatory

Mt. Lemmon Survey

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

1.13

1-sigma variation

2.67156E-4

Unit

Eccentricity (e)

Value

0.160257144787642

1-sigma variation

2.61768E-4

Unit

Inclination (i)

Value

7.05

1-sigma variation

8.299E-3

Unit

Ascending Node (Ω)

Value

62.16

1-sigma variation

0.002559

Unit

Arg. of Perihelion (ω)

Value

213.34

1-sigma variation

4.637E-3

Unit

Mean Anomaly (M)

Value

12.12

1-sigma variation

4.058E-3

Unit

Perihelion

Value

9.523E-1

1-sigma variation

Unit

Aphelion

Value

1.32

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

2.874E-1

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-3.795E-2

1-sigma variation

Unit

MOID

Value

2.965E-2

1-sigma variation

Unit

Orbit Period

Value

441.11

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.13723E-8	6.99327E-8	2.21692E-6	6.71227E-7	-1.23037E-6	1.08353E-6
e	6.99327E-8	6.85224E-8	2.17223E-6	6.57604E-7	-1.20537E-6	1.06162E-6
i	2.21692E-6	2.17223E-6	6.88667E-5	2.08140E-5	-3.81762E-5	3.36532E-5
Ω	6.71227E-7	6.57604E-7	2.08140E-5	6.54848E-6	-1.18133E-5	1.01886E-5
ω	-1.23037E-6	-1.20537E-6	-3.81762E-5	-1.18133E-5	2.14984E-5	-1.87017E-5
M	1.08353E-6	1.06162E-6	3.36532E-5	1.01886E-5	-1.87017E-5	1.64647E-5

Date of computation: 2021-04-30 13:00 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

24.873

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

40*

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

0.464025

Unit

arcseconds

Source

[1]

First Observation

Value

2021-04-13.361179

Unit

Source

[2]

Last Observation

Value

2021-04-29.85988

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

56 (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 2021GM10 from 1950 to 2150

Body	Date	MJD	Nominal distance (au)	Min possible distance (au)	Stretching (au)	Width (au)	Close approach probability
EARTH	1969-05-17.66295	40358.7	0.0339105	0.0306616	5.003E-3	4.346E-7	1.00E0
EARTH	1975-08-29.03183	42653.0	0.1314829	0.1142121	1.639E-2	1.336E-6	1.00E0
EARTH	1992-04-23.24173	48735.2	0.1708683	0.0301713	4.201E-2	5.094E-7	6.19E-1
EARTH	1998-06-07.50136	50971.5	0.0722370	0.0295882	3.418E-2	3.633E-7	1.00E0
EARTH	1998-10-05.36405	51091.4	0.1898038	0.1094227	3.761E-2	2.586E-7	5.76E-1
EARTH	2004-09-06.24678	53254.2	0.1884701	0.0745593	3.549E-2	1.265E-6	5.71E-1
EARTH	2021-05-10.84893	59344.8	0.0326155	0.0324880	4.242E-5	9.001E-8	1.00E0
EARTH	2027-08-03.05293	61620.1	0.1210650	0.1142754	1.059E-2	1.641E-6	1.00E0
EARTH	2050-05-05.49279	69931.5	0.0560095	0.0294652	5.890E-2	4.949E-7	9.29E-1
EARTH	2056-06-23.77592	72172.8	0.0964170	0.0536859	1.771E-2	7.782E-7	1.00E0
EARTH	2056-09-19.32414	72260.3	0.1665619	0.1227684	2.280E-2	5.342E-7	8.78E-1
EARTH	2062-09-05.05730	74437.1	0.1615088	0.1332782	1.431E-2	1.198E-6	1.00E0
EARTH	2085-05-05.49561	82715.5	0.0544815	0.0287729	1.325E-1	4.955E-7	4.97E-1
EARTH	2091-06-11.25078	84943.3	0.0794057	0.0292601	4.249E-2	4.077E-7	1.00E0
EARTH	2091-10-04.86018	85058.9	0.1836059	0.0665709	4.724E-2	2.814E-7	5.95E-1
EARTH	2097-08-29.33654	87214.3	0.1300580	0.0968115	3.637E-2	1.298E-6	1.00E0
EARTH	2120-04-23.07446	95486.1	0.1936059	0.0281802	3.469E-1	5.166E-7	1.87E-1
EARTH	2126-05-12.65181	97696.7	0.0301266	0.0283719	3.535E-1	4.776E-7	1.87E-1
EARTH	2132-06-14.90679	99921.9	0.0850519	0.0287525	9.975E-1	4.889E-7	6.37E-2
EARTH	2132-10-02.70860	100031.7	0.1784175	0.0287531	1.203E0	2.845E-7	3.60E-2
EARTH	2138-08-26.87442	102185.9	0.1269430	0.0280806	1.985E0	1.374E-6	2.62E-2

Download as: