Asteroids

2020BD help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.883

Aphelion (Q)

3.209

Eccentricity (e)

0.568

Inclination (i)

1.9

deg

Orbit period (P)

1069.2

Earth MOID

0.01122

U parameter

7.9

Next Earth close approach

Date

2060-12-05

Nominal distance (from Earth center)

0.10935

16358305

Maximum Brightness

39.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.2

mag

Diameter

15 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-01-18

Observatory

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.046354

1-sigma variation

0.002146

Unit

Eccentricity (e)

Value

0.568329

1-sigma variation

0.000442

Unit

Inclination (i)

Value

1.8781

1-sigma variation

0.0042

Unit

Long. of Ascending Node (Ω)

Value

92.9232

1-sigma variation

0.2793

Unit

Arg. of Perihelion (ω)

Value

336.3024

1-sigma variation

0.2588

Unit

Mean Anomaly (M)

Value

9.73604

1-sigma variation

0.96988

Unit

Perihelion distance

Value

0.883351

1-sigma variation

Unit

Aphelion distance

Value

3.209356

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.072759

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.872979

1-sigma variation

Unit

MOID

Value

0.011218

1-sigma variation

Unit

Orbit Period

Value

1069.2260

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.60553E-6	9.48234E-7	9.00117E-6	-5.99418E-4	5.55461E-4	-2.08142E-3
e	9.48234E-7	1.95232E-7	1.85326E-6	-1.23414E-4	1.14364E-4	-4.28544E-4
i	9.00117E-6	1.85326E-6	1.75933E-5	-1.17149E-3	1.08558E-3	-4.06798E-3
Ω	-5.99418E-4	-1.23414E-4	-1.17149E-3	7.80157E-2	-7.22947E-2	2.70900E-1
ω	5.55461E-4	1.14364E-4	1.08558E-3	-7.22947E-2	6.69932E-2	-2.51034E-1
M	-2.08142E-3	-4.28544E-4	-4.06798E-3	2.70900E-1	-2.51034E-1	9.40675E-1

Date of computation: 2025-09-10 00:30 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

26.204

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

15 - 30*

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

Unit

Source

[1]

Unobserved

Value

2052

Unit

Source

[1]

Normalized RMS of residuals

Value

0.538374

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-01-18.35543

Unit

Source

[2]

Last Observation

Value

2020-02-13.40548

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

43 (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

[-]

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 2020BD 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	1979-01-29 03:30	> 1 w	0.1975265	0.0122302	0.2379450
EARTH	1981-11-13 20:46	> 1 mo	0.0866609	0.0468869	0.0704944
EARTH	2020-01-14 19:45	< 1 min	0.0124135	0.0123938	0.0000066
EARTH	2022-10-14 03:56	> 1 d	0.0351609	0.0307471	0.0086424
EARTH	2060-12-05 05:06	> 1 mo	0.1093485	0.0802549	0.0384232
EARTH	2098-12-25 05:04	> 1 w	0.0845452	0.0192808	0.0278857
EARTH	2101-09-30 20:58	> 1 d	0.1605457	0.0321034	0.0763423

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
23.83451976	10.62657146	0.01123889	MINIMUM
334.70667893	281.60166477	0.03070877	MINIMUM
358.80174445	325.30999936	0.10373856	SADDLE
359.11057598	145.90542300	1.89692391	SADDLE
179.75007181	146.70480601	2.19613821	SADDLE
179.77934528	326.72461208	4.19581481	MAXIMUM

Download:

MOID Plots

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