Asteroids

2020LO help

Last update: 2024-04-25 23:56 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Aten

Perihelion (q)

0.801

Aphelion (Q)

1.120

Eccentricity (e)

0.166

Inclination (i)

10.0

deg

Orbit period (P)

343.8

Earth MOID

0.00040

U parameter

5.5

Next Earth close approach

Date

2036-06-04

Nominal distance (from Earth center)

0.01804

2698324

Maximum Brightness

21.5

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.7

mag

Diameter

12 - 27*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-06-12

Observatory

Mt. Lemmon Survey

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

0.960433

1-sigma variation

0.000010

Unit

Eccentricity (e)

Value

0.165970

1-sigma variation

0.000153

Unit

Inclination (i)

Value

9.9565

1-sigma variation

0.0113

Unit

Long. of Ascending Node (Ω)

Value

253.4659

1-sigma variation

0.0007

Unit

Arg. of Perihelion (ω)

Value

241.6187

1-sigma variation

0.0113

Unit

Mean Anomaly (M)

Value

122.74271

1-sigma variation

0.05019

Unit

Perihelion distance

Value

0.801030

1-sigma variation

Unit

Aphelion distance

Value

1.119836

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.000528

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.118998

1-sigma variation

Unit

MOID

Value

0.000400

1-sigma variation

Unit

Orbit Period

Value

343.7944

1-sigma variation

Unit

U parameter

Value

5.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.10097E-10	1.59471E-9	1.18511E-7	3.63244E-9	1.17993E-7	-5.25798E-7
e	1.59471E-9	2.33212E-8	1.73296E-6	5.88726E-8	1.72048E-6	-7.65661E-6
i	1.18511E-7	1.73296E-6	1.28775E-4	4.38584E-6	1.27847E-4	-5.68985E-4
Ω	3.63244E-9	5.88726E-8	4.38584E-6	5.14792E-7	4.20035E-6	-1.87237E-5
ω	1.17993E-7	1.72048E-6	1.27847E-4	4.20035E-6	1.27041E-4	-5.65576E-4
M	-5.25798E-7	-7.65661E-6	-5.68985E-4	-1.87237E-5	-5.65576E-4	2.51876E-3

Date of computation: 2024-04-23 10:08 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

26.72

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

12 - 27*

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

1399

Unit

Source

[1]

Normalized RMS of residuals

Value

0.625454

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2020-06-12.32523

Unit

Source

[2]

Last Observation

Value

2020-06-27.421396

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

52 (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 2020LO 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	1957-06-04 14:43	355.8	0.0009957	0.0003492	0.0511043
EARTH	1958-12-11 07:56	> 1 w	0.1315433	0.1048931	0.0301000
EARTH	1959-10-30 11:45	> 1 d	0.1835823	0.0968523	0.0439886
EARTH	1977-06-04 19:40	81.0	0.0226792	0.0133749	0.0031017
EARTH	1978-12-25 00:30	> 1 d	0.1607262	0.1543564	0.0021907
EARTH	1979-11-06 23:18	506.3	0.1230220	0.1149224	0.0028084
EARTH	1998-06-09 07:07	136.6	0.1584747	0.1494156	0.0030197
EARTH	1999-06-09 11:35	479.5	0.1085543	0.1002284	0.0027772
EARTH	2000-11-23 05:44	950.9	0.0865669	0.0837913	0.0010950
EARTH	2020-06-04 01:15	1.1	0.0048780	0.0048600	0.0000060
EARTH	2021-11-16 13:33	209.5	0.0959633	0.0955822	0.0001339
EARTH	2036-06-04 04:23	30.9	0.0180372	0.0135911	0.0014821
EARTH	2037-11-28 22:17	557.7	0.1108036	0.1104021	0.0001560
EARTH	2053-06-07 21:06	> 1 d	0.1439902	0.0397302	0.0347543
EARTH	2054-07-02 08:50	> 1 w	0.1703048	0.1042644	0.0249805
EARTH	2054-12-29 11:10	> 1 w	0.1777695	0.1478526	0.0169952
EARTH	2055-10-31 07:19	> 1 d	0.1505453	0.0986051	0.0280639
EARTH	2071-06-05 04:06	> 1 d	0.0547272	0.0011697	0.0334405
EARTH	2072-11-13 12:37	> 1 d	0.0919496	0.0918415	0.0011869
EARTH	2088-06-04 11:53	> 1 d	0.0581746	0.0012935	0.0389645
EARTH	2089-11-11 02:20	> 1 d	0.0950215	0.0931499	0.0079154
EARTH	2104-06-08 22:41	> 1 d	0.1520104	0.0257191	0.0421003
EARTH	2105-07-06 18:09	> 1 w	0.1760967	0.1083910	0.0272928
EARTH	2105-12-25 16:44	> 1 w	0.1706212	0.1390674	0.0209131
EARTH	2106-10-28 12:29	> 1 d	0.1761209	0.1056212	0.0340452
EARTH	2121-06-05 08:22	320.9	0.0197763	0.0014102	0.0146946
EARTH	2122-12-03 22:40	> 1 d	0.1174847	0.1120250	0.0047309

Download as:

2020LO

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS	TS
2065-06-03.868	75439.868	-3.688	0.000	1.40 ± 0.009	1.54E6	8.50E-10	7.43E-11	-10.02	0
2083-06-04.197	82014.197	-3.727	0.000	0.71 ± 0.566	4.64E7	3.01E-11	2.63E-12	-11.62	0


Based on 52 optical observations (of which 1 are rejected as outliers) from 2020/06/12.325 to 2020/06/27.421.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.96 and 1.96 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
AstOD software version= 4.0, Date of computation=20240110 090432.134 UTC.

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