Asteroids

2020HA10 help

Last update: 2026-06-04 23:11 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Atira

Perihelion (q)

0.692

Aphelion (Q)

0.947

Eccentricity (e)

0.155

Inclination (i)

49.7

deg

Orbit period (P)

271.1

Earth MOID

0.08770

U parameter

1.2

Next Earth close approach

Date

2031-07-07

Nominal distance (from Earth center)

0.09234

13813734

Maximum Brightness

25.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

18.9

mag

Diameter

400 - 1000*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-04-28

Observatory

University of Arizona 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.819687

1-sigma variation

1.188E-8

Unit

Eccentricity (e)

Value

0.155231

1-sigma variation

0.000001

Unit

Inclination (i)

Value

49.6524

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

103.4117

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

26.7148

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

201.14995

1-sigma variation

0.00017

Unit

Perihelion distance

Value

0.692446

1-sigma variation

Unit

Aphelion distance

Value

0.946928

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.280979

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.088137

1-sigma variation

Unit

MOID

Value

0.087697

1-sigma variation

Unit

Orbit Period

Value

271.0634

1-sigma variation

Unit

U parameter

Value

1.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.41069E-16	-5.99742E-15	-6.42173E-14	-1.14734E-13	-7.35456E-13	5.59660E-13
e	-5.99742E-15	4.34005E-13	-4.93451E-12	1.07080E-11	2.18569E-11	-3.96955E-11
i	-6.42173E-14	-4.93451E-12	6.49333E-9	-2.71965E-9	-2.86426E-9	7.44432E-9
Ω	-1.14734E-13	1.07080E-11	-2.71965E-9	4.96912E-9	8.71723E-10	-4.46311E-9
ω	-7.35456E-13	2.18569E-11	-2.86426E-9	8.71723E-10	1.91144E-8	-2.02126E-8
M	5.59660E-13	-3.96955E-11	7.44432E-9	-4.46311E-9	-2.02126E-8	2.89077E-8

Date of computation: 2026-06-04 23:11 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

18.931

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

400 - 1000*

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

5338

Unit

Source

[1]

Unobserved

Value

134

Unit

Source

[1]

Normalized RMS of residuals

Value

0.824709

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2011-06-12.400302

Unit

Source

[2]

Last Observation

Value

2026-01-22.22609

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

43 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2020HA10 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1962-07-10 01:34	< 1 min	0.1340678	0.1340591	0.0000029
EARTH	1965-07-02 10:27	< 1 min	0.1210056	0.1209976	0.0000027
EARTH	1985-07-07 17:58	< 1 min	0.1003073	0.1003029	0.0000015
EARTH	1988-06-30 04:11	< 1 min	0.1618175	0.1618111	0.0000021
VENUS	1995-07-26 03:16	< 1 min	0.0234367	0.0234305	0.0000021
EARTH	2008-07-06 11:34	< 1 min	0.0901809	0.0901795	0.0000005
EARTH	2011-06-30 04:27	< 1 min	0.1802546	0.1802523	0.0000008
VENUS	2020-10-15 04:27	< 1 min	0.0308508	0.0308461	0.0000016
EARTH	2031-07-07 16:58	< 1 min	0.0923391	0.0923367	0.0000008
EARTH	2034-06-30 14:41	< 1 min	0.1674354	0.1674305	0.0000016
VENUS	2042-04-25 07:52	< 1 min	0.0473697	0.0473623	0.0000025
EARTH	2054-07-08 10:12	< 1 min	0.1013906	0.1013849	0.0000019
EARTH	2057-07-01 06:01	< 1 min	0.1509981	0.1509903	0.0000026
VENUS	2067-07-17 11:04	< 1 min	0.0182460	0.0182436	0.0000008
EARTH	2077-07-08 18:49	< 1 min	0.1080897	0.1080728	0.0000056
EARTH	2080-07-01 13:14	< 1 min	0.1417332	0.1417073	0.0000086
VENUS	2092-10-07 05:27	< 1 min	0.0338773	0.0338273	0.0000167
EARTH	2100-07-10 09:21	< 1 min	0.1198935	0.1198620	0.0000105
EARTH	2103-07-04 07:57	< 1 min	0.1239991	0.1239697	0.0000098
VENUS	2114-04-18 18:52	< 1 min	0.0334939	0.0334639	0.0000100
EARTH	2123-07-12 08:45	< 1 min	0.1402921	0.1402838	0.0000028
EARTH	2126-07-05 02:07	< 1 min	0.1089474	0.1089457	0.0000006

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
149.72743646	179.42799132	0.08769719	MINIMUM
335.46722364	357.88060891	0.28030434	MINIMUM
57.42108648	90.12636366	0.76883243	SADDLE
248.49955361	266.28578921	0.79243736	SADDLE
48.70680775	255.58791137	1.58643902	SADDLE
265.27295350	110.46315087	1.67919949	SADDLE
323.49624762	169.11449197	1.72515029	MAXIMUM
160.80832424	5.79380248	1.91898828	MAXIMUM

Download:

MOID Plots

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