Asteroids

2014DH help

Last update: 2025-04-09 07:59 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.630

Aphelion (Q)

1.344

Eccentricity (e)

0.361

Inclination (i)

1.2

deg

Orbit period (P)

358.2

Earth MOID

0.00437

U parameter

7.1

Next Earth close approach

Date

2025-06-28

Nominal distance (from Earth center)

0.04612

6900090

Maximum Brightness

23.6

mag

Risk

Object is not 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

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.987120

1-sigma variation

0.000034

Unit

Eccentricity (e)

Value

0.361413

1-sigma variation

0.001047

Unit

Inclination (i)

Value

1.2438

1-sigma variation

0.0009

Unit

Long. of Ascending Node (Ω)

Value

109.2720

1-sigma variation

0.1065

Unit

Arg. of Perihelion (ω)

Value

283.8200

1-sigma variation

0.1343

Unit

Mean Anomaly (M)

Value

233.01322

1-sigma variation

1.74544

Unit

Perihelion distance

Value

0.630362

1-sigma variation

Unit

Aphelion distance

Value

1.343878

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.194699

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.075597

1-sigma variation

Unit

MOID

Value

0.004374

1-sigma variation

Unit

Orbit Period

Value

358.2227

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.12905E-9	-3.51742E-8	-2.86741E-8	3.57421E-6	-4.51056E-6	5.86458E-5
e	-3.51742E-8	1.09581E-6	8.93306E-7	-1.11350E-4	1.40522E-4	-1.82706E-3
i	-2.86741E-8	8.93306E-7	7.35239E-7	-9.03788E-5	1.14190E-4	-1.48980E-3
Ω	3.57421E-6	-1.11350E-4	-9.03788E-5	1.13390E-2	-1.43006E-2	1.85619E-1
ω	-4.51056E-6	1.40522E-4	1.14190E-4	-1.43006E-2	1.80398E-2	-2.34273E-1
M	5.86458E-5	-1.82706E-3	-1.48980E-3	1.85619E-1	-2.34273E-1	3.04656E0

Date of computation: 2025-04-09 07:59 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

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 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

4107

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

Close Approaches for 2014DH 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	1961-02-18 06:00	> 1 d	0.1476044	0.0419881	0.0355067
EARTH	1962-02-13 21:48	> 1 d	0.0232792	0.0121474	0.0423757
EARTH	1963-02-12 18:59	> 1 d	0.0959686	0.0120175	0.0472380
EARTH	1964-02-28 09:56	> 1 w	0.1999896	0.0999048	0.0333957
EARTH	1972-06-21 17:52	> 1 d	0.1727310	0.1289367	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	0.0080217
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	0.0325333
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	0.1109406	0.0240836
EARTH	2024-06-30 08:24	37.2	0.0708461	0.0044044	0.0303478
EARTH	2025-06-28 00:25	1412.8	0.0461243	0.0043708	0.0302040
EARTH	2026-06-23 14:47	1321.6	0.1685985	0.0922820	0.0254458
VENUS	2040-06-13 18:41	> 1 d	0.0172905	0.0155243	0.0288494
VENUS	2055-01-02 10:55	> 1 mo	0.0444733	0.0307532	0.4193693
EARTH	2062-02-16 10:08	> 1 w	0.0794006	0.0132191	0.4465193
EARTH	2063-02-13 04:14	> 1 d	0.0454892	0.0127128	0.3952866
EARTH	2064-02-21 11:26	> 1 mo	0.1661946	0.0098267	0.2816379
EARTH	2072-06-26 10:52	> 1 mo	0.1463470	0.0035482	0.4020357
EARTH	2073-06-30 04:44	> 1 w	0.0250574	0.0044278	0.4820976
EARTH	2074-06-26 20:41	> 1 w	0.0893136	0.0039637	0.3507111
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	1.9034297
EARTH	2112-02-16 14:20	> 1 mo	0.0478654	0.0127972	2.5321879
VENUS	2112-11-05 16:25	> 1 mo	0.0326195	0.0304895	1.2209301
EARTH	2113-02-13 06:43	> 1 w	0.0677081	0.0129660	3.0563629
EARTH	2114-02-23 15:54	> 1 mo	0.1762126	0.0101170	3.3067011
EARTH	2123-07-02 03:12	> 1 mo	0.0977008	0.0046458	9.9977927
EARTH	2124-06-30 01:51	> 1 mo	0.0160648	0.0047114	9.8254775
EARTH	2125-06-25 15:39	> 1 mo	0.1460437	0.0064125	0.4680464

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
265.35585445	175.32904144	0.00437438	MINIMUM
89.99074379	41.40584738	0.01236898	MINIMUM
178.24928406	109.00112023	0.33933997	SADDLE
356.32055032	286.90343106	0.36459617	SADDLE
356.31128019	106.90338346	1.63541796	SADDLE
178.31653959	289.05443464	2.33803284	MAXIMUM

Download:

MOID Plots

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