Asteroids

2020OX4 help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.748

Aphelion (Q)

3.588

Eccentricity (e)

0.655

Inclination (i)

4.6

deg

Orbit period (P)

1166.0

Earth MOID

0.00555

U parameter

8.2

Next Earth close approach

Date

2068-03-05

Nominal distance (from Earth center)

0.09719

14538790

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.5

mag

Diameter

30 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-07-25

Observatory

Pan-STARRS 1, Haleakala

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.168091

1-sigma variation

0.004468

Unit

Eccentricity (e)

Value

0.654781

1-sigma variation

0.000856

Unit

Inclination (i)

Value

4.5976

1-sigma variation

0.0050

Unit

Long. of Ascending Node (Ω)

Value

119.6047

1-sigma variation

0.0047

Unit

Arg. of Perihelion (ω)

Value

105.5470

1-sigma variation

0.0061

Unit

Mean Anomaly (M)

Value

195.84854

1-sigma variation

1.74323

Unit

Perihelion distance

Value

0.748465

1-sigma variation

Unit

Aphelion distance

Value

3.587716

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.518913

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.037556

1-sigma variation

Unit

MOID

Value

0.005555

1-sigma variation

Unit

Orbit Period

Value

1166.0430

1-sigma variation

Unit

U parameter

Value

8.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.99629E-5	3.82574E-6	2.22665E-5	2.11566E-5	-2.74246E-5	-7.78872E-3
e	3.82574E-6	7.33175E-7	4.26724E-6	4.05449E-6	-5.25601E-6	-1.49265E-3
i	2.22665E-5	4.26724E-6	2.48410E-5	2.36016E-5	-3.06060E-5	-8.68751E-3
Ω	2.11566E-5	4.05449E-6	2.36016E-5	2.24301E-5	-2.90638E-5	-8.25446E-3
ω	-2.74246E-5	-5.25601E-6	-3.06060E-5	-2.90638E-5	3.77893E-5	1.06999E-2
M	-7.78872E-3	-1.49265E-3	-8.68751E-3	-8.25446E-3	1.06999E-2	3.03885E0

Date of computation: 2025-07-29 02:36 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

24.515

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

30 - 70*

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

1838

Unit

Source

[1]

Normalized RMS of residuals

Value

0.708882

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-07-25.552975

Unit

Source

[2]

Last Observation

Value

2020-08-12.4688

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

33 (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 2020OX4 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
VENUS	1969-04-30 07:27	> 1 mo	0.0428912	0.0270212	0.1680089
EARTH	1985-03-12 16:07	> 1 mo	0.1466020	0.0432014	1.1296900
16 Psyche	1990-12-30 04:17	> 1 w	0.0129195	0.0072506	0.4230758
EARTH	2001-02-24 23:46	> 1 w	0.0470766	0.0452360	0.0984423
EARTH	2004-07-30 08:18	> 1 w	0.1719759	0.0038129	0.3107428
EARTH	2020-07-15 19:19	< 1 min	0.0326799	0.0325649	0.0000383
EARTH	2068-03-05 09:07	> 1 mo	0.0971858	0.0514588	0.5197314
EARTH	2084-02-20 03:03	> 1 w	0.1016780	0.0510357	0.2449865
VENUS	2087-06-15 16:34	> 1 mo	0.0435753	0.0329757	0.0508689
EARTH	2087-07-25 13:50	> 1 w	0.0629938	0.0020314	0.1597346
VENUS	2103-05-28 17:46	> 1 mo	0.0460898	0.0365284	0.1624324
EARTH	2103-07-19 01:34	> 1 mo	0.0293913	0.0025305	0.4046740

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
35.80040464	193.68190780	0.00555486	MINIMUM
325.69674816	53.97615160	0.04871549	MINIMUM
0.76712749	123.59858018	0.26882190	SADDLE
1.11198840	304.38426112	1.73803462	SADDLE
180.20655181	303.27978278	2.60083726	SADDLE
180.27855448	123.31659213	4.59417887	MAXIMUM

Download:

MOID Plots

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