Asteroids

2020CX1 help

Last update: 2026-07-30 14:25 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.840

Aphelion (Q)

1.168

Eccentricity (e)

0.163

Inclination (i)

12.7

deg

Orbit period (P)

367.7

Earth MOID

0.00111

U parameter

0.0

Next Earth close approach

Date

2027-02-14

Nominal distance (from Earth center)

0.19604

29327524

Maximum Brightness

23.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.1

mag

Diameter

40 - 90*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-02-05

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.004448

1-sigma variation

9.918E-10

Unit

Eccentricity (e)

Value

0.163231

1-sigma variation

7.301E-8

Unit

Inclination (i)

Value

12.7323

1-sigma variation

5.156E-6

Unit

Long. of Ascending Node (Ω)

Value

328.9044

1-sigma variation

2.704E-6

Unit

Arg. of Perihelion (ω)

Value

273.2189

1-sigma variation

6.335E-6

Unit

Mean Anomaly (M)

Value

25.41939

1-sigma variation

4.781E-6

Unit

Perihelion distance

Value

0.840490

1-sigma variation

Unit

Aphelion distance

Value

1.168405

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.043126

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.001415

1-sigma variation

Unit

MOID

Value

0.001110

1-sigma variation

Unit

Orbit Period

Value

367.6964

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.83653E-19	-1.27976E-17	-1.77770E-15	-1.05243E-16	-1.85027E-15	-1.92463E-15
e	-1.27976E-17	5.32985E-15	7.96223E-14	-2.03134E-14	3.95424E-13	2.86070E-13
i	-1.77770E-15	7.96223E-14	2.65893E-11	-9.24041E-12	1.62426E-11	5.97872E-12
Ω	-1.05243E-16	-2.03134E-14	-9.24041E-12	7.31302E-12	-7.32984E-12	-1.41848E-12
ω	-1.85027E-15	3.95424E-13	1.62426E-11	-7.32984E-12	4.01379E-11	1.81208E-11
M	-1.92463E-15	2.86070E-13	5.97872E-12	-1.41848E-12	1.81208E-11	2.28596E-11

Date of computation: 2026-07-30 14:25 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

24.081

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

40 - 90*

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

2189

Unit

Source

[1]

Unobserved

Value

998

Unit

Source

[1]

Normalized RMS of residuals

Value

0.634824

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2018-02-06.15607

Unit

Source

[2]

Last Observation

Value

2024-02-04.203728

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

214 (10)

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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

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 2020CX1 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	1999-09-11 22:08	< 1 min	0.1797692	0.1797679	0.0000005
EARTH	2000-09-08 10:42	< 1 min	0.1349663	0.1349651	0.0000004
EARTH	2001-09-05 20:54	< 1 min	0.0950905	0.0950894	0.0000003
EARTH	2002-09-03 06:14	< 1 min	0.0639708	0.0639702	0.0000002
EARTH	2003-08-31 16:44	< 1 min	0.0493407	0.0493407	0.0000000
EARTH	2004-08-27 21:17	< 1 min	0.0564537	0.0564532	0.0000002
EARTH	2005-08-24 09:34	< 1 min	0.0793182	0.0793174	0.0000003
EARTH	2006-08-19 18:50	< 1 min	0.1097257	0.1097248	0.0000003
EARTH	2007-08-13 06:52	< 1 min	0.1433492	0.1433483	0.0000003
EARTH	2008-08-02 23:40	< 1 min	0.1775824	0.1775816	0.0000003
EARTH	2016-02-14 16:52	< 1 s	0.1848491	0.1848489	0.0000001
EARTH	2017-02-18 16:39	< 1 s	0.1442468	0.1442466	0.0000001
EARTH	2018-02-19 19:51	< 1 s	0.1051672	0.1051670	0.0000000
EARTH	2019-02-19 21:39	< 1 s	0.0685302	0.0685301	0.0000000
EARTH	2020-02-19 11:00	< 1 s	0.0360648	0.0360648	0.0000000
EARTH	2021-02-18 01:34	< 1 s	0.0125655	0.0125654	0.0000000
EARTH	2022-02-18 11:09	< 1 s	0.0184224	0.0184224	0.0000000
EARTH	2023-02-19 08:52	< 1 s	0.0444180	0.0444179	0.0000000
EARTH	2024-02-20 09:39	< 1 s	0.0780878	0.0780877	0.0000000
EARTH	2025-02-20 01:24	< 1 s	0.1152290	0.1152289	0.0000000
EARTH	2026-02-19 11:11	< 1 s	0.1550753	0.1550752	0.0000000
EARTH	2027-02-14 22:43	< 1 s	0.1960424	0.1960422	0.0000001
EARTH	2034-08-02 18:10	< 1 min	0.1813914	0.1813906	0.0000003
EARTH	2035-08-12 16:05	< 1 min	0.1450466	0.1450457	0.0000003
EARTH	2036-08-17 16:15	< 1 min	0.1092383	0.1092374	0.0000003
EARTH	2037-08-21 19:15	< 1 min	0.0753454	0.0753447	0.0000003
EARTH	2038-08-24 21:16	< 1 min	0.0473826	0.0473820	0.0000002
EARTH	2039-08-27 06:03	< 1 s	0.0326399	0.0326397	0.0000001
EARTH	2040-08-28 08:27	< 1 min	0.0392469	0.0392466	0.0000001
EARTH	2041-08-30 18:31	< 1 min	0.0668189	0.0668181	0.0000003
EARTH	2042-09-02 09:19	< 1 min	0.1052242	0.1052232	0.0000003
EARTH	2043-09-05 00:29	< 1 min	0.1488882	0.1488871	0.0000004
EARTH	2044-09-06 17:25	< 1 min	0.1956463	0.1956451	0.0000004

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
276.02132669	43.65670219	0.00110990	MINIMUM
82.86369835	230.61987384	0.03400149	MINIMUM
359.91608672	136.89631568	0.26699087	SADDLE
179.02796267	317.51749684	0.29879352	SADDLE
3.23452834	320.98778570	1.81682164	SADDLE
184.10339196	141.89452718	2.16797313	MAXIMUM

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MOID Plots

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