Asteroids

2020TB5 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.034

Aphelion (Q)

2.150

Eccentricity (e)

0.350

Inclination (i)

3.8

deg

Orbit period (P)

733.9

Earth MOID

0.03532

U parameter

8.2

Next Earth close approach

Date

2026-10-29

Nominal distance (from Earth center)

0.11016

16479474

Maximum Brightness

24.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.1

mag

Diameter

10 - 23*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-10-13

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

1.592353

1-sigma variation

0.002149

Unit

Eccentricity (e)

Value

0.350431

1-sigma variation

0.000783

Unit

Inclination (i)

Value

3.7769

1-sigma variation

0.0183

Unit

Long. of Ascending Node (Ω)

Value

5.0085

1-sigma variation

0.0818

Unit

Arg. of Perihelion (ω)

Value

10.9393

1-sigma variation

0.2385

Unit

Mean Anomaly (M)

Value

198.58583

1-sigma variation

2.12712

Unit

Perihelion distance

Value

1.034344

1-sigma variation

Unit

Aphelion distance

Value

2.150362

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.036793

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.130791

1-sigma variation

Unit

MOID

Value

0.035319

1-sigma variation

Unit

Orbit Period

Value

733.9346

1-sigma variation

Unit

U parameter

Value

8.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.61741E-6	1.68249E-6	3.93934E-5	1.75635E-4	-5.12329E-4	-4.57079E-3
e	1.68249E-6	6.13065E-7	1.43545E-5	6.39994E-5	-1.86687E-4	-1.66550E-3
i	3.93934E-5	1.43545E-5	3.36209E-4	1.49901E-3	-4.37253E-3	-3.89950E-2
Ω	1.75635E-4	6.39994E-5	1.49901E-3	6.68346E-3	-1.94953E-2	-1.73859E-1
ω	-5.12329E-4	-1.86687E-4	-4.37253E-3	-1.94953E-2	5.68670E-2	5.07149E-1
M	-4.57079E-3	-1.66550E-3	-3.89950E-2	-1.73859E-1	5.07149E-1	4.52463E0

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

27.088

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

10 - 23*

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

1837

Unit

Source

[1]

Normalized RMS of residuals

Value

0.886778

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-10-13.220982

Unit

Source

[2]

Last Observation

Value

2020-10-17.17971

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

25 (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 2020TB5 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
MARS	1989-06-01 01:35	> 1 d	0.0440570	0.0355575	0.0472568
EARTH	2012-11-07 02:23	> 1 d	0.1964975	0.0248514	0.0878226
EARTH	2014-10-30 18:12	> 1 w	0.1219757	0.0147158	0.0717364
EARTH	2016-10-20 17:05	> 1 w	0.0679521	0.0012789	0.0435937
EARTH	2018-10-12 14:58	> 1 w	0.0444794	0.0203825	0.0129388
EARTH	2020-10-08 12:46	1.7	0.0390062	0.0387500	0.0000854
EARTH	2022-10-11 11:27	> 1 w	0.0419867	0.0231352	0.0115916
EARTH	2024-10-19 09:25	> 1 w	0.0626307	0.0039069	0.0442898
EARTH	2026-10-29 18:06	> 1 w	0.1101585	0.0134363	0.0783305
EARTH	2028-11-06 14:54	> 1 d	0.1808100	0.0246185	0.0986682

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
355.92998916	268.74871920	0.03586450	MINIMUM
178.94086893	92.53104299	1.14982379	SADDLE
357.62947418	91.19306108	2.03480165	SADDLE
178.80460165	272.43729459	3.14933572	MAXIMUM

Download:

MOID Plots

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