Asteroids

226514 2003UX34 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.421

Aphelion (Q)

1.770

Eccentricity (e)

0.616

Inclination (i)

2.6

deg

Orbit period (P)

418.7

Earth MOID

0.01499

U parameter

0.0

Next Earth close approach

Date

2043-09-03

Nominal distance (from Earth center)

0.14947

22359708

Maximum Brightness

18.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

20.2

mag

Diameter

275

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2003-10-26

Observatory

LPL/Spacewatch II

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.095272

1-sigma variation

8.832E-10

Unit

Eccentricity (e)

Value

0.615792

1-sigma variation

2.797E-8

Unit

Inclination (i)

Value

2.5608

1-sigma variation

1.423E-6

Unit

Long. of Ascending Node (Ω)

Value

4.2459

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

218.6249

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

225.11373

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.420812

1-sigma variation

Unit

Aphelion distance

Value

1.769732

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.307374

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.539308

1-sigma variation

Unit

MOID

Value

0.014989

1-sigma variation

Unit

Orbit Period

Value

418.6792

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.80116E-19	-1.21640E-17	2.74098E-16	2.21208E-15	-2.16160E-15	-4.72265E-15
e	-1.21640E-17	7.82048E-16	-4.11811E-16	7.67971E-14	-5.39281E-14	1.08556E-13
i	2.74098E-16	-4.11811E-16	2.02588E-12	-1.06681E-11	1.21270E-11	-4.15549E-12
Ω	2.21208E-15	7.67971E-14	-1.06681E-11	4.12873E-9	-4.10352E-9	-4.12796E-11
ω	-2.16160E-15	-5.39281E-14	1.21270E-11	-4.10352E-9	4.08498E-9	3.84966E-11
M	-4.72265E-15	1.08556E-13	-4.15549E-12	-4.12796E-11	3.84966E-11	3.59486E-11

Date of computation: 2025-09-10 00:30 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

B,R

Unit

Source

[6]

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

[1]

Taxonomy (all)

Value

Unit

Source

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

20.171

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[-]

Diameter

Value

275

Unit

Source

[4]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Radar R

Unit

Source

[5]

Satellites

Satellites

Value

Unit

Source

Satellites

Value

Binary Child 1

Unit

Source

[2]

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Sources

No.	Name	Additional
[1]	EARN	1.) Michaël Marsset et al 2022 AJ 163 165
[2]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	EARN	1.) Brozovic, M. et al. (2017) CBET HREF="http://www.cbat.eps.harvard.edu/iau/cbet/004300/CBET004353.txt">4353. (226514) 2003 UX_34 (binary detection)
[5]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage 2.) Brozovic, M. et al. (2017) CBET HREF="http://www.cbat.eps.harvard.edu/iau/cbet/004300/CBET004353.txt">4353. (226514) 2003 UX_34 (binary detection)
[6]	EARN	1.) Binary radar detection at Arecibo 2.) Brozovic, M. et al. (2017) CBET HREF="http://www.cbat.eps.harvard.edu/iau/cbet/004300/CBET004353.txt">4353. (226514) 2003 UX_34 (binary detection)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

10341

Unit

Source

[1]

Unobserved

Value

281

Unit

Source

[1]

Normalized RMS of residuals

Value

0.569758

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1996-09-17.10764

Unit

Source

[2]

Last Observation

Value

2025-01-09.325443

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

461 (6)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2017-01-04

Unit

Source

[3]

Last Observation

Value

2017-01-04

Unit

Source

[3]

Delay (Discarded)

Value

1 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

1 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

2 (0)

Unit

Source

[1]

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
[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 226514 2003UX34 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
MERCURY	1953-01-08 10:19	< 1 min	0.0341899	0.0341897	0.0000001
EARTH	1954-01-03 21:58	< 1 s	0.0500160	0.0500158	0.0000001
MERCURY	1957-08-08 14:27	< 1 min	0.0316466	0.0316463	0.0000001
EARTH	1962-01-06 00:36	< 1 s	0.0996249	0.0996246	0.0000001
MERCURY	1962-03-08 16:04	< 1 min	0.0277554	0.0277551	0.0000001
MERCURY	1966-10-07 06:55	< 1 min	0.0207970	0.0207967	0.0000001
EARTH	1970-01-07 13:38	< 1 s	0.1625102	0.1625100	0.0000001
MERCURY	1971-05-06 19:23	< 1 min	0.0166947	0.0166945	0.0000001
VENUS	1972-07-21 03:56	< 1 s	0.0208895	0.0208893	0.0000001
MERCURY	1975-12-06 14:00	< 1 min	0.0194253	0.0194250	0.0000001
VENUS	1982-09-09 06:30	< 1 min	0.0469849	0.0469840	0.0000003
EARTH	1988-09-02 07:18	< 1 s	0.1677235	0.1677233	0.0000001
EARTH	1996-09-05 18:35	< 1 s	0.0401863	0.0401862	0.0000000
MERCURY	2004-07-13 09:45	< 1 s	0.0286981	0.0286979	0.0000001
EARTH	2004-09-09 03:04	< 1 s	0.0557499	0.0557497	0.0000001
VENUS	2005-10-10 02:43	< 1 s	0.0229535	0.0229533	0.0000001
EARTH	2008-12-27 22:23	< 1 s	0.1684589	0.1684587	0.0000001
MERCURY	2009-02-17 14:54	< 1 min	0.0341899	0.0341898	0.0000000
EARTH	2012-09-14 16:23	< 1 s	0.1881997	0.1881994	0.0000001
MERCURY	2013-09-25 09:48	< 1 s	0.0165781	0.0165779	0.0000001
EARTH	2017-01-02 12:17	< 1 s	0.0488978	0.0488978	0.0000000
MERCURY	2018-04-29 17:33	< 1 s	0.0489769	0.0489766	0.0000001
EARTH	2025-01-07 00:06	< 1 s	0.1236077	0.1236075	0.0000001
VENUS	2030-12-28 09:27	< 1 s	0.0382525	0.0382519	0.0000002
MERCURY	2037-10-06 20:12	< 1 s	0.0386456	0.0386453	0.0000001
VENUS	2041-02-15 23:59	< 1 s	0.0099732	0.0099729	0.0000001
MERCURY	2042-05-12 14:02	< 1 min	0.0314270	0.0314269	0.0000000
EARTH	2043-09-03 14:54	< 1 s	0.1494654	0.1494652	0.0000001
MERCURY	2046-12-23 22:37	< 1 min	0.0161637	0.0161633	0.0000001
EARTH	2051-09-09 21:17	< 1 min	0.0510250	0.0510239	0.0000003
EARTH	2055-12-30 19:50	< 1 min	0.1256271	0.1256259	0.0000004
VENUS	2056-03-21 22:21	< 1 min	0.0306220	0.0306208	0.0000004
VENUS	2058-05-07 12:58	< 1 min	0.0416263	0.0416251	0.0000004
MERCURY	2061-11-22 19:06	< 1 min	0.0277256	0.0277256	0.0000000
EARTH	2064-01-08 03:04	< 1 s	0.1250324	0.1250320	0.0000001
VENUS	2073-06-12 13:09	< 1 min	0.0301007	0.0300982	0.0000009
EARTH	2074-09-03 13:22	< 1 min	0.1493131	0.1493107	0.0000008
VENUS	2075-07-29 08:14	< 1 min	0.0382770	0.0382744	0.0000009
MERCURY	2076-10-25 15:54	< 1 min	0.0333438	0.0333435	0.0000001
EARTH	2082-09-11 05:34	< 1 s	0.0826329	0.0826323	0.0000002
EARTH	2087-01-01 15:56	< 1 min	0.0853356	0.0853336	0.0000007
VENUS	2090-09-03 21:41	< 1 min	0.0437379	0.0437341	0.0000013
MERCURY	2091-09-29 00:05	< 1 min	0.0337146	0.0337143	0.0000001
VENUS	2092-10-19 13:37	< 1 min	0.0263075	0.0263034	0.0000014
EARTH	2095-01-09 02:08	< 1 s	0.1691692	0.1691677	0.0000005
MERCURY	2096-05-11 14:54	< 1 min	0.0471067	0.0471061	0.0000002
MARS	2103-06-30 21:11	< 1 min	0.0377451	0.0377435	0.0000005
EARTH	2105-09-05 03:56	< 1 min	0.1278007	0.1277932	0.0000025
MERCURY	2106-08-28 00:23	< 1 min	0.0263199	0.0263169	0.0000010
VENUS	2107-11-25 06:50	< 1 min	0.0199153	0.0199083	0.0000023
MERCURY	2111-04-14 00:35	< 1 min	0.0137626	0.0137587	0.0000013
EARTH	2113-09-12 23:35	< 1 min	0.0990752	0.0990583	0.0000057
EARTH	2118-01-03 05:05	< 1 min	0.0740129	0.0739948	0.0000061
MERCURY	2121-07-31 13:03	1.0	0.0463966	0.0463682	0.0000095
VENUS	2125-02-14 19:04	< 1 min	0.0182540	0.0182395	0.0000048

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
82.56592998	243.39952860	0.01505625	MINIMUM
279.64028686	0.64028539	0.04353417	MINIMUM
2.51061006	123.89854609	0.58816734	SADDLE
180.66317512	301.38511646	0.77918499	SADDLE
2.39649888	303.69376479	1.41180344	SADDLE
180.55648782	121.34099273	2.77779690	MAXIMUM

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MOID Plots

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