Asteroids

2020GY1 help

Last update: 2024-04-19 00:31 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.755

Aphelion (Q)

1.801

Eccentricity (e)

0.409

Inclination (i)

6.0

deg

Orbit period (P)

527.7

Earth MOID

0.00017

U parameter

5.8

Next Earth close approach

Date

2033-04-05

Nominal distance (from Earth center)

0.00637

952892

Maximum Brightness

18.2

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.6

mag

Diameter

13 - 29*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-04-05

Observatory

Tokyo-Kiso

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.277954

1-sigma variation

0.000034

Unit

Eccentricity (e)

Value

0.409466

1-sigma variation

0.000024

Unit

Inclination (i)

Value

5.9669

1-sigma variation

0.0004

Unit

Long. of Ascending Node (Ω)

Value

195.5627

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

278.9821

1-sigma variation

0.0002

Unit

Mean Anomaly (M)

Value

311.37456

1-sigma variation

0.04331

Unit

Perihelion distance

Value

0.754675

1-sigma variation

Unit

Aphelion distance

Value

1.801233

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.000613

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.137944

1-sigma variation

Unit

MOID

Value

0.000169

1-sigma variation

Unit

Orbit Period

Value

527.6809

1-sigma variation

Unit

U parameter

Value

5.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.16525E-9	8.08355E-10	1.20347E-8	1.96289E-9	5.85663E-9	-1.47844E-6
e	8.08355E-10	5.60844E-10	8.34995E-9	1.36121E-9	4.05044E-9	-1.02562E-6
i	1.20347E-8	8.34995E-9	1.24396E-7	2.02786E-8	6.02646E-8	-1.52693E-5
Ω	1.96289E-9	1.36121E-9	2.02786E-8	3.32736E-9	9.93988E-9	-2.49047E-6
ω	5.85663E-9	4.05044E-9	6.02646E-8	9.93988E-9	3.15067E-8	-7.43092E-6
M	-1.47844E-6	-1.02562E-6	-1.52693E-5	-2.49047E-6	-7.43092E-6	1.87580E-3

Date of computation: 2024-02-21 14:29 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

26.559

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

13 - 29*

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

[-]

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Sources

No.	Name	Additional
[1]	ESA ODIM	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

1464

Unit

Source

[1]

Normalized RMS of residuals

Value

0.568084

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-04-05.590301

Unit

Source

[2]

Last Observation

Value

2020-04-16.53367

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

205 (1)

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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2020GY1 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1952-12-14 05:02	> 1 d	0.1838646	0.1621844	0.0072542
EARTH	1960-11-22 15:57	> 1 d	0.1326442	0.1112883	0.0072439
EARTH	1968-11-14 13:37	706.0	0.0878704	0.0773100	0.0037129
EARTH	1976-11-10 12:26	292.9	0.0615015	0.0593422	0.0008735
EARTH	1984-11-06 19:18	233.3	0.0670589	0.0636043	0.0012643
EARTH	1992-11-01 06:19	213.7	0.1447319	0.1367688	0.0026688
EARTH	2012-04-11 15:19	138.8	0.0913804	0.0865437	0.0016122
EARTH	2020-04-05 07:36	< 1 s	0.0005373	0.0005372	0.0000000
EARTH	2022-11-13 19:16	233.1	0.1507615	0.1486855	0.0006921
EARTH	2033-04-05 05:39	322.3	0.0063697	0.0005914	0.0031155
EARTH	2035-10-25 11:27	> 1 d	0.0312974	0.0305562	0.0148806
EARTH	2043-04-10 20:47	> 1 w	0.0715195	0.0018270	0.4185133
EARTH	2045-10-30 02:16	> 1 mo	0.0691397	0.0300819	0.4008988
EARTH	2053-04-16 11:41	> 1 w	0.1834125	0.0043000	0.3772351
EARTH	2055-11-23 05:03	> 1 mo	0.1776135	0.0063735	0.2442848
EARTH	2096-03-28 02:41	> 1 mo	0.0942094	0.0052648	0.4026086
EARTH	2098-10-20 13:44	> 1 w	0.1023648	0.0304831	0.3878053
EARTH	2106-04-09 08:31	> 1 w	0.0289491	0.0021235	0.2235931
EARTH	2108-11-01 04:20	> 1 w	0.0770144	0.0279002	0.1122782

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