Asteroids

2016DO2 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.752

Aphelion (Q)

2.379

Eccentricity (e)

0.520

Inclination (i)

1.4

deg

Orbit period (P)

715.7

Earth MOID

0.00215

U parameter

8.6

Next Earth close approach

Date

2063-02-16

Nominal distance (from Earth center)

0.01773

2652584

Maximum Brightness

17.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.8

mag

Diameter

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2016-02-28

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.565805

1-sigma variation

0.002089

Unit

Eccentricity (e)

Value

0.519565

1-sigma variation

0.001192

Unit

Inclination (i)

Value

1.4133

1-sigma variation

0.0052

Unit

Long. of Ascending Node (Ω)

Value

173.6576

1-sigma variation

0.0007

Unit

Arg. of Perihelion (ω)

Value

259.6698

1-sigma variation

0.0695

Unit

Mean Anomaly (M)

Value

116.78950

1-sigma variation

7.09085

Unit

Perihelion distance

Value

0.752268

1-sigma variation

Unit

Aphelion distance

Value

2.379342

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.267450

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.039239

1-sigma variation

Unit

MOID

Value

0.002154

1-sigma variation

Unit

Orbit Period

Value

715.6570

1-sigma variation

Unit

U parameter

Value

8.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.36301E-6	2.48923E-6	1.07648E-5	-6.84626E-7	1.45116E-4	-1.48112E-2
e	2.48923E-6	1.42019E-6	6.14161E-6	-3.90263E-7	8.27919E-5	-8.45026E-3
i	1.07648E-5	6.14161E-6	2.65620E-5	-1.71922E-6	3.58075E-4	-3.65435E-2
Ω	-6.84626E-7	-3.90263E-7	-1.71922E-6	5.09215E-7	-2.32410E-5	2.32408E-3
ω	1.45116E-4	8.27919E-5	3.58075E-4	-2.32410E-5	4.82733E-3	-4.92629E-1
M	-1.48112E-2	-8.45026E-3	-3.65435E-2	2.32408E-3	-4.92629E-1	5.02801E1

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

23.763

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.835

Unit

Source

[2]

Diameter

Value

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]	EARN	1.) Masiero, J.R. et al. (2018) Astron. J. 156_60(8pp) (Small and Nearby NEOs Observed by NEOWISE During the First Three Years of Survey: Physical Properties)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

3668

Unit

Source

[1]

Normalized RMS of residuals

Value

0.608046

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2016-02-19.21513

Unit

Source

[2]

Last Observation

Value

2016-03-05.19116

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

36 (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 2016DO2 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	1959-02-24 11:42	> 1 mo	0.1776532	0.0134973	51.3954179
EARTH	1961-02-17 08:30	> 1 mo	0.0654556	0.0130834	85.3757981
EARTH	1963-02-09 08:38	> 1 mo	0.0446552	0.0127785	97.6463303
EARTH	1965-01-21 02:08	> 1 mo	0.1509137	0.0099715	66.7753372
VENUS	1970-11-30 19:33	> 1 mo	0.0481652	0.0063129	25.4694084
EARTH	1972-10-22 01:44	> 1 mo	0.1747697	0.0051855	17.1576842
EARTH	1974-10-01 08:28	> 1 mo	0.0905103	0.0012121	13.5899912
EARTH	1976-09-20 18:31	> 1 mo	0.0040443	0.0018453	0.4940245
EARTH	2016-02-18 12:24	< 1 min	0.0471840	0.0467540	0.0001433
EARTH	2018-01-13 00:46	> 1 w	0.1808086	0.0893050	0.0305337
EARTH	2021-10-07 23:41	> 1 w	0.1263036	0.0000427	0.1368577
EARTH	2023-09-14 13:28	> 1 w	0.1141792	0.0018187	0.2070364
VENUS	2055-02-26 06:59	> 1 w	0.0484444	0.0201129	0.0333989
EARTH	2063-02-16 13:54	> 1 d	0.0177314	0.0111324	0.0637006
EARTH	2065-01-08 05:46	> 1 w	0.1926629	0.1082672	0.0281326
EARTH	2068-10-07 02:11	> 1 d	0.1197221	0.0939904	0.0086665
EARTH	2070-09-15 01:50	> 1 d	0.1127230	0.0689311	0.0147068
MARS	2104-07-20 11:36	> 1 d	0.0119206	0.0090906	0.0642414
EARTH	2114-02-23 01:52	> 1 w	0.0918476	0.0115848	0.1386729
EARTH	2116-02-01 15:31	> 1 w	0.1242479	0.0085300	0.1022325
VENUS	2117-12-14 02:36	> 1 w	0.0472157	0.0054516	0.0595669
EARTH	2121-09-29 17:48	> 1 w	0.0581738	0.0011106	0.0623323
EARTH	2123-09-15 06:47	> 1 d	0.1426568	0.0378723	0.0352262

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
313.62847377	258.39266553	0.00218640	MINIMUM
44.83790104	43.88079304	0.01135673	MINIMUM
359.00808535	330.89216111	0.23432760	SADDLE
179.67723315	151.64217762	1.36397508	SADDLE
358.93194330	150.77841730	1.76810614	SADDLE
179.67637442	331.64775935	3.36489674	MAXIMUM

Download:

MOID Plots

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