Asteroids

2008LH2 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.709

Aphelion (Q)

1.250

Eccentricity (e)

0.276

Inclination (i)

5.8

deg

Orbit period (P)

354.0

Earth MOID

0.00421

U parameter

5.5

Next Earth close approach

Date

2038-06-08

Nominal distance (from Earth center)

0.18551

27752581

Maximum Brightness

23.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.4

mag

Diameter

40 - 80*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2008-06-04

Observatory

Lincoln Laboratory ETS, New Mexico

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.979300

1-sigma variation

0.000007

Unit

Eccentricity (e)

Value

0.275937

1-sigma variation

0.000074

Unit

Inclination (i)

Value

5.7714

1-sigma variation

0.0020

Unit

Long. of Ascending Node (Ω)

Value

249.2673

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

249.1957

1-sigma variation

0.0013

Unit

Mean Anomaly (M)

Value

94.33687

1-sigma variation

0.11225

Unit

Perihelion distance

Value

0.709075

1-sigma variation

Unit

Aphelion distance

Value

1.249526

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.012251

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.162217

1-sigma variation

Unit

MOID

Value

0.004214

1-sigma variation

Unit

Orbit Period

Value

353.9747

1-sigma variation

Unit

U parameter

Value

5.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.79208E-11	5.09680E-10	1.34844E-8	9.39818E-10	8.90260E-9	-7.76990E-7
e	5.09680E-10	5.44906E-9	1.44065E-7	9.96729E-9	9.41325E-8	-8.26927E-6
i	1.34844E-8	1.44065E-7	3.80962E-6	2.64457E-7	2.49171E-6	-2.18758E-4
Ω	9.39818E-10	9.96729E-9	2.64457E-7	2.02490E-8	1.73768E-7	-1.52335E-5
ω	8.90260E-9	9.41325E-8	2.49171E-6	1.73768E-7	1.66613E-6	-1.44243E-4
M	-7.76990E-7	-8.26927E-6	-2.18758E-4	-1.52335E-5	-1.44243E-4	1.25992E-2

Date of computation: 2025-09-10 00:30 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

24.354

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

40 - 80*

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 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

6278

Unit

Source

[1]

Normalized RMS of residuals

Value

0.444184

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2008-06-04.31678

Unit

Source

[2]

Last Observation

Value

2008-07-11.16404

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

92 (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 2008LH2 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	1950-10-19 14:05	> 1 d	0.1549145	0.0645299	0.0576029
EARTH	1974-06-02 09:47	68.1	0.0151913	0.0094059	0.0019497
EARTH	1975-06-14 19:40	814.2	0.1501371	0.1450189	0.0017066
EARTH	1979-11-01 12:54	206.2	0.0939411	0.0890664	0.0016615
EARTH	1980-10-22 04:21	143.4	0.1200119	0.1142423	0.0019402
EARTH	2007-06-07 20:53	5.5	0.1546016	0.1542205	0.0001271
EARTH	2008-06-01 05:49	< 1 min	0.0215734	0.0215538	0.0000065
EARTH	2009-06-28 06:11	104.8	0.1886421	0.1884936	0.0000495
EARTH	2012-11-12 13:10	305.5	0.1488237	0.1465202	0.0007698
EARTH	2013-10-24 04:22	68.9	0.0827078	0.0807479	0.0006643
EARTH	2038-06-08 22:55	106.5	0.1855145	0.1795795	0.0019784
EARTH	2039-06-02 09:03	67.1	0.0063138	0.0039462	0.0015092
EARTH	2042-09-30 15:54	> 1 d	0.1899766	0.1733507	0.0055442
EARTH	2042-11-30 02:09	> 1 d	0.1880536	0.1730428	0.0051826
EARTH	2043-10-22 18:55	1108.2	0.0814213	0.0661915	0.0071088
EARTH	2063-06-09 08:34	> 1 d	0.1870882	0.0160405	0.0572634
EARTH	2064-06-01 09:46	335.9	0.0493143	0.0045072	0.0570191
EARTH	2067-11-02 06:20	> 1 d	0.1324547	0.0695210	0.0251151
EARTH	2068-10-18 07:51	917.2	0.1418277	0.0949761	0.0170502
EARTH	2088-06-02 14:55	> 1 d	0.0277740	0.0049656	0.1557219
EARTH	2089-06-26 01:13	> 1 mo	0.1799312	0.0341351	0.0582885
EARTH	2092-10-25 20:39	> 1 w	0.0635574	0.0620336	0.0358413
EARTH	2114-06-03 06:40	> 1 mo	0.0082481	0.0054683	1.1196260
EARTH	2117-10-30 14:37	> 1 mo	0.1230077	0.0081483	0.3107381
EARTH	2118-10-17 11:27	> 1 mo	0.1713487	0.1033248	0.7631327

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
97.10201912	148.46546752	0.00357783	MINIMUM
271.05246468	292.25323313	0.06113692	MINIMUM
184.09903363	219.71854879	0.25967782	SADDLE
4.89091252	41.77556305	0.28954407	SADDLE
3.31268720	219.68809032	1.71995980	SADDLE
181.28906038	37.55833193	2.23387760	MAXIMUM

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MOID Plots

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