Asteroids

2020QW3 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.031

Aphelion (Q)

2.151

Eccentricity (e)

0.352

Inclination (i)

31.8

deg

Orbit period (P)

732.9

Earth MOID

0.01993

U parameter

7.4

Next Earth close approach

Date

2026-08-25

Nominal distance (from Earth center)

0.09678

14477565

Maximum Brightness

22.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.3

mag

Diameter

23 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-08-19

Observatory

Palomar Mountain--ZTF

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

1.590854

1-sigma variation

0.000585

Unit

Eccentricity (e)

Value

0.352102

1-sigma variation

0.000242

Unit

Inclination (i)

Value

31.7543

1-sigma variation

0.0118

Unit

Long. of Ascending Node (Ω)

Value

147.3046

1-sigma variation

0.0008

Unit

Arg. of Perihelion (ω)

Value

172.9886

1-sigma variation

0.0290

Unit

Mean Anomaly (M)

Value

226.49454

1-sigma variation

0.65764

Unit

Perihelion distance

Value

1.030712

1-sigma variation

Unit

Aphelion distance

Value

2.150997

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.153623

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.019999

1-sigma variation

Unit

MOID

Value

0.019930

1-sigma variation

Unit

Orbit Period

Value

732.8989

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.42242E-7	1.41293E-7	6.93203E-6	4.65193E-7	-1.69834E-5	-3.84726E-4
e	1.41293E-7	5.83322E-8	2.86186E-6	1.92053E-7	-7.01153E-6	-1.58832E-4
i	6.93203E-6	2.86186E-6	1.40412E-4	9.42237E-6	-3.43996E-4	-7.79254E-3
Ω	4.65193E-7	1.92053E-7	9.42237E-6	6.32318E-7	-2.30847E-5	-5.22940E-4
ω	-1.69834E-5	-7.01153E-6	-3.43996E-4	-2.30847E-5	8.42820E-4	1.90916E-2
M	-3.84726E-4	-1.58832E-4	-7.79254E-3	-5.22940E-4	1.90916E-2	4.32484E-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

25.307

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

23 - 50*

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

1894

Unit

Source

[1]

Normalized RMS of residuals

Value

0.743728

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-08-17.214754

Unit

Source

[2]

Last Observation

Value

2020-08-22.368212

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

85 (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 2020QW3 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	2010-08-11 03:24	> 1 d	0.1770328	0.0377090	0.0465985
EARTH	2012-08-13 08:03	> 1 d	0.1279585	0.0153164	0.0403387
EARTH	2014-08-16 05:41	> 1 d	0.0833907	0.0178970	0.0323677
EARTH	2016-08-17 22:58	> 1 d	0.0444413	0.0204239	0.0205798
EARTH	2018-08-19 20:01	720.2	0.0248333	0.0211950	0.0049145
EARTH	2020-08-20 02:27	< 1 s	0.0209555	0.0209283	0.0000091
EARTH	2022-08-21 14:40	717.2	0.0296168	0.0207362	0.0067438
EARTH	2024-08-22 17:58	1417.2	0.0565369	0.0201881	0.0176090
EARTH	2026-08-25 10:34	> 1 d	0.0967765	0.0248844	0.0253197
EARTH	2028-08-27 12:46	> 1 d	0.1464869	0.0543155	0.0309261
EARTH	2030-08-30 15:04	> 1 d	0.1970814	0.0907951	0.0354510

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
4.73014189	225.56498109	0.02169533	MINIMUM
171.67698213	33.90825692	1.17101714	SADDLE
353.05874064	30.93699738	2.01509969	SADDLE
180.86737566	219.32926546	3.16225383	MAXIMUM

Download:

MOID Plots

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