Asteroids

2013UB3 help

Last update: 2023-12-08 19:34 UTC

Orbital Properties

Epoch

60200.0

MJD

Orbit type

Aten

Perihelion (q)

0.710

Aphelion (Q)

1.059

Eccentricity (e)

0.198

Inclination (i)

4.8

deg

Orbit period (P)

303.8

Earth MOID

0.04506

U parameter

1.5

Next Earth close approach

Date

2028-12-02

Nominal distance (from Earth center)

0.07508

11231660

Maximum Brightness

23.3

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.7

mag

Diameter

26*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2013-10-24

Observatory

Mt. Lemmon Survey

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.884336

1-sigma variation

1.231E-8

Unit

Eccentricity (e)

Value

0.197694

1-sigma variation

0.000001

Unit

Inclination (i)

Value

4.8194

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

213.5787

1-sigma variation

3.026E-5

Unit

Arg. of Perihelion (ω)

Value

351.3504

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

147.51779

1-sigma variation

0.00058

Unit

Perihelion distance

Value

0.709509

1-sigma variation

Unit

Aphelion distance

Value

1.059164

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.296041

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.061960

1-sigma variation

Unit

MOID

Value

0.045058

1-sigma variation

Unit

Orbit Period

Value

303.7557

1-sigma variation

Unit

U parameter

Value

1.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.51564E-16	-5.38960E-15	-7.90307E-13	7.61749E-14	-1.91070E-12	1.75405E-12
e	-5.38960E-15	1.50857E-12	4.74909E-11	1.11886E-11	-3.37934E-10	5.78098E-10
i	-7.90307E-13	4.74909E-11	4.48354E-9	-5.18027E-11	3.93192E-9	1.52773E-10
Ω	7.61749E-14	1.11886E-11	-5.18027E-11	9.15833E-10	-6.13660E-9	7.88239E-9
ω	-1.91070E-12	-3.37934E-10	3.93192E-9	-6.13660E-9	1.51077E-7	-2.20993E-7
M	1.75405E-12	5.78098E-10	1.52773E-10	7.88239E-9	-2.20993E-7	3.33630E-7

Date of computation: 2023-12-05 12:52 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

25.711

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

26*

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 ODIM	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

1849

Unit

Source

[1]

Unobserved

Value

1849

Unit

Source

[1]

Normalized RMS of residuals

Value

0.47447

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2013-10-24.18869

Unit

Source

[2]

Last Observation

Value

2018-11-15.932622

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

39 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2013UB3 from 1950 to 2123

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1950-12-03 18:12	44.8	0.1589351	0.1549645	0.0013256
EARTH	1964-09-12 23:16	25.4	0.1624976	0.1591659	0.0011128
EARTH	1969-09-20 03:57	< 1 min	0.0584827	0.0584617	0.0000070
EARTH	1974-10-30 05:33	670.7	0.0588585	0.0584240	0.0001535
EARTH	1979-12-02 19:49	125.5	0.0706058	0.0669445	0.0012495
VENUS	1997-08-16 23:27	< 1 min	0.0030232	0.0030202	0.0000010
EARTH	1998-09-11 04:18	< 1 min	0.0993821	0.0993704	0.0000039
EARTH	2003-09-17 22:32	1.2	0.0579169	0.0579133	0.0000012
EARTH	2008-10-01 20:46	< 1 min	0.0605110	0.0605078	0.0000011
EARTH	2013-10-24 17:56	< 1 min	0.0626039	0.0626011	0.0000009
EARTH	2018-11-14 11:59	< 1 min	0.0517709	0.0517687	0.0000007
EARTH	2023-11-27 23:21	< 1 min	0.0473966	0.0473943	0.0000008
VENUS	2028-05-20 11:55	1.4	0.0030257	0.0030216	0.0000014
EARTH	2028-12-02 16:50	11.8	0.0750790	0.0748509	0.0000762
EARTH	2033-11-19 21:33	414.4	0.0526262	0.0517101	0.0003210
EARTH	2038-10-20 15:18	1376.4	0.0721390	0.0719240	0.0000921
EARTH	2043-09-18 11:21	931.3	0.0586406	0.0577409	0.0004068
EARTH	2048-09-06 06:30	45.6	0.1019637	0.0930702	0.0030419
EARTH	2053-09-07 21:02	95.7	0.1992437	0.1893943	0.0032920
EARTH	2069-12-03 02:26	65.4	0.1424238	0.1362012	0.0020815
EARTH	2074-12-02 04:27	217.1	0.0651704	0.0591399	0.0021710
EARTH	2079-11-24 21:12	1163.1	0.0484314	0.0478530	0.0005054
VENUS	2081-11-21 12:02	> 1 d	0.0223787	0.0096513	0.0047332
EARTH	2084-11-21 14:07	345.3	0.0484150	0.0467339	0.0006336
EARTH	2089-11-25 16:31	> 1 d	0.0468534	0.0468405	0.0002520
EARTH	2094-11-30 11:31	> 1 d	0.0596728	0.0480587	0.0218026
VENUS	2096-01-18 22:36	> 1 w	0.0113487	0.0069986	0.0350252
EARTH	2113-09-10 17:53	> 1 w	0.0676730	0.0537625	0.2417240
VENUS	2117-08-06 20:16	> 1 mo	0.0200671	0.0074592	0.4779100
EARTH	2118-10-15 16:51	> 1 mo	0.0670831	0.0116116	0.0740271
EARTH	2123-11-06 19:37	> 1 mo	0.0615069	0.0554331	0.5589037

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