Asteroids

2014DH help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.630

Aphelion (Q)

1.343

Eccentricity (e)

0.362

Inclination (i)

1.2

deg

Orbit period (P)

357.8

Earth MOID

0.00444

U parameter

8.1

Next Earth close approach

Date

2026-06-23

Nominal distance (from Earth center)

0.1686

25221974

Maximum Brightness

26.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.7

mag

Diameter

12 - 27*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2014-02-19

Observatory

Mt. Lemmon Survey

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.986397

1-sigma variation

0.000526

Unit

Eccentricity (e)

Value

0.361525

1-sigma variation

0.001123

Unit

Inclination (i)

Value

1.2460

1-sigma variation

0.0036

Unit

Long. of Ascending Node (Ω)

Value

109.2446

1-sigma variation

0.1354

Unit

Arg. of Perihelion (ω)

Value

283.9442

1-sigma variation

0.2353

Unit

Mean Anomaly (M)

Value

275.28045

1-sigma variation

1.53896

Unit

Perihelion distance

Value

0.629790

1-sigma variation

Unit

Aphelion distance

Value

1.343004

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.195226

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.076876

1-sigma variation

Unit

MOID

Value

0.004440

1-sigma variation

Unit

Orbit Period

Value

357.8293

1-sigma variation

Unit

U parameter

Value

8.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.77192E-7	-5.91239E-7	-1.89911E-6	7.12318E-5	-1.23853E-4	8.10246E-4
e	-5.91239E-7	1.26116E-6	4.05057E-6	-1.51959E-4	2.64193E-4	-1.72820E-3
i	-1.89911E-6	4.05057E-6	1.30181E-5	-4.87625E-4	8.48170E-4	-5.55123E-3
Ω	7.12318E-5	-1.51959E-4	-4.87625E-4	1.83332E-2	-3.18529E-2	2.08205E-1
ω	-1.23853E-4	2.64193E-4	8.48170E-4	-3.18529E-2	5.53627E-2	-3.62023E-1
M	8.10246E-4	-1.72820E-3	-5.55123E-3	2.08205E-1	-3.62023E-1	2.36839E0

Date of computation: 2026-03-17 23:26 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

26.708

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

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 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

4402

Unit

Source

[1]

Normalized RMS of residuals

Value

0.707303

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2014-02-19.38574

Unit

Source

[2]

Last Observation

Value

2014-03-05.20185

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

28 (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

[-]

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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2014DH from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1961-02-18 06:00	> 1 d	0.1476044	0.0419879	0.0355068
EARTH	1962-02-13 21:48	> 1 d	0.0232792	0.0121474	0.0423758
EARTH	1963-02-12 18:59	> 1 d	0.0959686	0.0120175	0.0472381
EARTH	1964-02-28 09:56	> 1 w	0.1999896	0.0999045	0.0333958
EARTH	1972-06-21 17:52	> 1 d	0.1727310	0.1289366	0.0145984
EARTH	1973-06-30 16:37	199.9	0.0649452	0.0263319	0.0128959
EARTH	1974-06-28 09:53	129.4	0.0441842	0.0203460	0.0080218
EARTH	1975-06-24 07:20	127.8	0.1593962	0.1536740	0.0019079
VENUS	1977-09-16 01:29	> 1 d	0.0438527	0.0162640	0.0165929
VENUS	1997-03-06 00:02	> 1 d	0.0431476	0.0310621	0.0325334
EARTH	2013-02-16 17:58	149.8	0.1002222	0.0910458	0.0030617
EARTH	2014-02-13 03:42	< 1 min	0.0225872	0.0223685	0.0000729
EARTH	2015-02-16 14:52	597.9	0.1405726	0.1324074	0.0027225
EARTH	2023-06-20 00:25	> 1 d	0.1831912	0.1109405	0.0240837
EARTH	2024-06-30 08:24	37.2	0.0708461	0.0044044	0.0303479
EARTH	2025-06-28 00:25	1412.8	0.0461243	0.0043708	0.0302040
EARTH	2026-06-23 14:47	1321.6	0.1685985	0.0922818	0.0254459
VENUS	2040-06-13 18:41	> 1 d	0.0172905	0.0155243	0.0288495
VENUS	2055-01-02 10:55	> 1 mo	0.0444733	0.0307532	0.4193703
EARTH	2062-02-16 10:08	> 1 w	0.0794006	0.0132191	0.4465204
EARTH	2063-02-13 04:14	> 1 d	0.0454892	0.0127128	0.3952875
EARTH	2064-02-21 11:26	> 1 mo	0.1661946	0.0098267	0.2816386
EARTH	2072-06-26 10:52	> 1 mo	0.1463470	0.0035482	0.4020366
EARTH	2073-06-30 04:44	> 1 w	0.0250574	0.0044278	0.4820987
EARTH	2074-06-26 20:41	> 1 w	0.0893136	0.0039637	0.3507119
VENUS	2081-06-19 06:18	> 1 mo	0.0304908	0.0304819	0.0183921
EARTH	2111-02-20 19:46	> 1 mo	0.1654916	0.0123134	1.9034341
EARTH	2112-02-16 14:20	> 1 mo	0.0478654	0.0127972	2.5321938
VENUS	2112-11-05 16:25	> 1 mo	0.0326195	0.0304895	1.2209330
EARTH	2113-02-13 06:43	> 1 w	0.0677081	0.0129660	3.0563701
EARTH	2114-02-23 15:54	> 1 mo	0.1762126	0.0101170	3.3067090
EARTH	2123-07-02 03:12	> 1 mo	0.0977008	0.0046458	9.9978166
EARTH	2124-06-30 01:51	> 1 mo	0.0160648	0.0047114	9.8255009
EARTH	2125-06-25 15:39	> 1 mo	0.1460437	0.0064124	0.4680481

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
264.94016633	175.98426868	0.00451397	MINIMUM
90.16353290	42.55199449	0.01245219	MINIMUM
178.15536859	109.93140137	0.33701440	SADDLE
356.11963701	287.71902862	0.36543398	SADDLE
356.10387187	107.71185582	1.63631393	SADDLE
178.22602639	289.98826978	2.33743329	MAXIMUM

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MOID Plots

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