Asteroids

2012UE34 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.996

Aphelion (Q)

1.215

Eccentricity (e)

0.099

Inclination (i)

9.7

deg

Orbit period (P)

424.5

Earth MOID

0.00120

U parameter

0.3

Next Earth close approach

Date

2034-04-19

Nominal distance (from Earth center)

0.08131

12164129

Maximum Brightness

20.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

70 - 150*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2012-10-18

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

1.105450

1-sigma variation

5.705E-9

Unit

Eccentricity (e)

Value

0.099380

1-sigma variation

1.580E-7

Unit

Inclination (i)

Value

9.6580

1-sigma variation

9.113E-6

Unit

Long. of Ascending Node (Ω)

Value

198.4395

1-sigma variation

2.555E-5

Unit

Arg. of Perihelion (ω)

Value

18.4513

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

96.77782

1-sigma variation

0.00008

Unit

Perihelion distance

Value

0.995590

1-sigma variation

Unit

Aphelion distance

Value

1.215309

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.001241

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.210516

1-sigma variation

Unit

MOID

Value

0.001199

1-sigma variation

Unit

Orbit Period

Value

424.5286

1-sigma variation

Unit

U parameter

Value

0.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.25478E-17	1.98150E-16	-8.60331E-15	-2.75134E-14	-3.49699E-14	-9.11877E-14
e	1.98150E-16	2.49568E-14	5.91860E-13	-1.82654E-13	-2.89413E-13	-2.53740E-13
i	-8.60331E-15	5.91860E-13	8.30438E-11	1.10018E-10	-1.23285E-10	6.64786E-11
Ω	-2.75134E-14	-1.82654E-13	1.10018E-10	6.53040E-10	-8.52856E-10	3.99277E-10
ω	-3.49699E-14	-2.89413E-13	-1.23285E-10	-8.52856E-10	5.20838E-9	-5.18383E-9
M	-9.11877E-14	-2.53740E-13	6.64786E-11	3.99277E-10	-5.18383E-9	6.37126E-9

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

23.031

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

70 - 150*

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

2578

Unit

Source

[1]

Unobserved

Value

2109

Unit

Source

[1]

Normalized RMS of residuals

Value

0.586418

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2012-10-18.39351

Unit

Source

[2]

Last Observation

Value

2019-11-09.49735

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

54 (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 2012UE34 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	1951-03-21 14:16	> 1 d	0.1872071	0.1137824	0.0246142
EARTH	1968-04-05 01:58	249.4	0.0242521	0.0200487	0.0014024
EARTH	1991-04-08 15:49	< 1 min	0.0022037	0.0022016	0.0000007
EARTH	1991-08-17 23:51	< 1 min	0.1867655	0.1867651	0.0000002
EARTH	1998-03-28 08:32	< 1 min	0.1191587	0.1191561	0.0000008
EARTH	1998-09-11 11:27	< 1 min	0.1893922	0.1893916	0.0000002
EARTH	2034-04-19 19:24	< 1 min	0.0813122	0.0813093	0.0000010
EARTH	2041-04-08 02:53	< 1 min	0.0007330	0.0007323	0.0000002
EARTH	2047-04-16 16:36	580.7	0.0596254	0.0502737	0.0031214
EARTH	2053-05-04 04:42	281.1	0.1866085	0.1783105	0.0027702
EARTH	2088-03-22 09:46	199.7	0.1365864	0.1304887	0.0020338
EARTH	2094-04-05 05:31	412.7	0.0216330	0.0147702	0.0022899
EARTH	2100-03-27 19:28	> 1 d	0.0957596	0.0453833	0.0169764

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
343.18054526	95.17120345	0.00119883	MINIMUM
107.31997886	228.36937789	0.18611966	MINIMUM
91.75654441	212.89356792	0.18647908	SADDLE
221.72063268	332.70096186	0.25258344	SADDLE
11.10982427	305.81192414	1.98606714	SADDLE
184.17446269	118.83449605	2.22157191	MAXIMUM

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MOID Plots

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