Asteroids

2021LV2 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.980

Aphelion (Q)

2.248

Eccentricity (e)

0.393

Inclination (i)

3.4

deg

Orbit period (P)

749.0

Earth MOID

0.00893

U parameter

5.8

Next Earth close approach

Date

2060-06-05

Nominal distance (from Earth center)

0.17575

26292117

Maximum Brightness

24.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.3

mag

Diameter

24 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2021-06-07

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

1.614022

1-sigma variation

0.000070

Unit

Eccentricity (e)

Value

0.393023

1-sigma variation

0.000028

Unit

Inclination (i)

Value

3.4041

1-sigma variation

0.0002

Unit

Long. of Ascending Node (Ω)

Value

105.3338

1-sigma variation

0.0010

Unit

Arg. of Perihelion (ω)

Value

199.9269

1-sigma variation

0.0012

Unit

Mean Anomaly (M)

Value

304.94794

1-sigma variation

0.04545

Unit

Perihelion distance

Value

0.979675

1-sigma variation

Unit

Aphelion distance

Value

2.248370

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.180180

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.019644

1-sigma variation

Unit

MOID

Value

0.008927

1-sigma variation

Unit

Orbit Period

Value

748.9672

1-sigma variation

Unit

U parameter

Value

5.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.86451E-9	1.95802E-9	1.40307E-8	6.96058E-8	-8.42071E-8	-3.16981E-6
e	1.95802E-9	7.88127E-10	5.64787E-9	2.80145E-8	-3.38904E-8	-1.27589E-6
i	1.40307E-8	5.64787E-9	4.05483E-8	2.00183E-7	-2.42171E-7	-9.14274E-6
Ω	6.96058E-8	2.80145E-8	2.00183E-7	1.00056E-6	-1.21040E-6	-4.53563E-5
ω	-8.42071E-8	-3.38904E-8	-2.42171E-7	-1.21040E-6	1.46465E-6	5.48706E-5
M	-3.16981E-6	-1.27589E-6	-9.14274E-6	-4.53563E-5	5.48706E-5	2.06552E-3

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

25.261

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

24 - 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

1517

Unit

Source

[1]

Normalized RMS of residuals

Value

0.583509

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2021-06-07.40167

Unit

Source

[2]

Last Observation

Value

2021-06-24.959166

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

108 (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

2021-06-24

Unit

Source

[3]

Last Observation

Value

2021-06-27

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

2 (0)

Unit

Source

[1]

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
[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 2021LV2 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	1953-06-29 04:00	> 1 w	0.0099475	0.0099292	0.0030940
EARTH	1955-09-16 16:05	> 1 d	0.1854411	0.0487981	0.0705819
EARTH	1986-06-03 19:36	> 1 d	0.1924902	0.1379299	0.0182300
EARTH	1988-08-16 04:51	> 1 d	0.0393617	0.0393583	0.0000984
EARTH	2021-06-26 20:33	< 1 s	0.0118776	0.0118752	0.0000008
EARTH	2023-09-10 09:04	123.4	0.1108467	0.1085083	0.0007813
EARTH	2060-06-05 06:34	> 1 d	0.1757519	0.1286998	0.0157161
EARTH	2062-08-06 12:51	> 1 d	0.0429000	0.0428935	0.0001033
EARTH	2101-07-08 20:39	312.2	0.0208574	0.0197000	0.0003905
EARTH	2103-09-19 16:48	49.3	0.1942774	0.1915631	0.0009052

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
341.42892858	175.13779382	0.00892748	MINIMUM
12.47033753	222.41175004	0.04118550	MINIMUM
5.09960056	211.20064909	0.04205481	SADDLE
179.74861791	22.66704570	1.26382629	SADDLE
359.24190017	22.19951094	1.96445584	SADDLE
179.57474388	202.54840761	3.26324289	MAXIMUM

Download:

MOID Plots

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