Asteroids

503941 2003UV11 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.345

Aphelion (Q)

2.562

Eccentricity (e)

0.763

Inclination (i)

5.9

deg

Orbit period (P)

640.1

Earth MOID

0.00783

U parameter

0.0

Next Earth close approach

Date

2031-11-05

Nominal distance (from Earth center)

0.15751

23562797

Maximum Brightness

18.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

19.6

mag

Diameter

260

Taxonomic type

Rotation period (T)

18.18

Discovery Information

Discovery Date

2003-10-21

Observatory

Lowell Observatory-LONEOS

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

1.453584

1-sigma variation

7.094E-10

Unit

Eccentricity (e)

Value

0.762709

1-sigma variation

1.437E-8

Unit

Inclination (i)

Value

5.9314

1-sigma variation

5.372E-6

Unit

Long. of Ascending Node (Ω)

Value

31.7684

1-sigma variation

3.842E-6

Unit

Arg. of Perihelion (ω)

Value

124.9438

1-sigma variation

5.083E-6

Unit

Mean Anomaly (M)

Value

189.04902

1-sigma variation

4.107E-7

Unit

Perihelion distance

Value

0.344923

1-sigma variation

Unit

Aphelion distance

Value

2.562246

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.085519

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.583551

1-sigma variation

Unit

MOID

Value

0.007829

1-sigma variation

Unit

Orbit Period

Value

640.1160

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.03181E-19	7.75717E-19	-3.75018E-15	-1.91772E-15	1.98414E-15	-8.37986E-17
e	7.75717E-19	2.06628E-16	-1.64371E-14	-2.30068E-14	5.25591E-14	5.36902E-15
i	-3.75018E-15	-1.64371E-14	2.88618E-11	1.44169E-11	-1.63537E-11	2.87943E-13
Ω	-1.91772E-15	-2.30068E-14	1.44169E-11	1.47601E-11	-1.81696E-11	-1.07645E-13
ω	1.98414E-15	5.25591E-14	-1.63537E-11	-1.81696E-11	2.58320E-11	8.72972E-13
M	-8.37986E-17	5.36902E-15	2.87943E-13	-1.07645E-13	8.72972E-13	1.68687E-13

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

18.18

Unit

Source

[2]

Quality

Value

Unit

Source

[2]

Amplitude

Value

0.27

Unit

mag

Source

[2]

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

[1]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

19.592

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.376

Unit

Source

[4]

Diameter

Value

260

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]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)
[2]	EARN	1.) Warner, B.D. (2018) MPB 45, 138-147. (NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2017 OCTOBER-DECEMBER)(20 NEAs) 2.) Ries, J.G. et al. (2006) ASPC 352, 273-276. (Photometry of Near Earth Asteroids at McDonald Observatory) (2002EZ11, 98943,2003UV11,2003SS84,65803)
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	EARN	1.) Mainzer, A. et al. (2014) Astrophys. J. 784, 110. (The Population of Tiny Near-Earth Objects Observed by NEOWISE)
[5]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

10250

Unit

Source

[1]

Unobserved

Value

368

Unit

Source

[1]

Normalized RMS of residuals

Value

0.510528

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1996-10-12.51528

Unit

Source

[2]

Last Observation

Value

2024-11-04.230178

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1116 (32)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2010-10-25

Unit

Source

[3]

Last Observation

Value

2017-10-31

Unit

Source

[3]

Delay (Discarded)

Value

8 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

6 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

14 (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 503941 2003UV11 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	1984-09-25 18:01	< 1 min	0.0488499	0.0488487	0.0000004
MERCURY	1991-09-23 19:26	< 1 s	0.0093081	0.0093080	0.0000000
EARTH	1996-11-03 15:01	< 1 s	0.1356401	0.1356399	0.0000001
MERCURY	1998-09-24 18:29	< 1 min	0.0338919	0.0338919	0.0000000
EARTH	2003-11-01 14:35	< 1 s	0.0658424	0.0658422	0.0000000
MERCURY	2005-09-24 01:55	< 1 s	0.0316950	0.0316948	0.0000000
EARTH	2010-10-30 04:14	< 1 s	0.0129525	0.0129525	0.0000000
MERCURY	2012-09-27 00:13	< 1 s	0.0353306	0.0353304	0.0000001
EARTH	2017-10-31 03:00	< 1 s	0.0384714	0.0384714	0.0000000
EARTH	2024-11-02 07:43	< 1 s	0.0960083	0.0960083	0.0000000
MERCURY	2024-12-18 01:22	< 1 s	0.0109615	0.0109615	0.0000000
EARTH	2031-11-05 13:09	< 1 s	0.1575076	0.1575075	0.0000000
MERCURY	2044-04-11 21:05	< 1 min	0.0164274	0.0164273	0.0000000
VENUS	2045-12-04 13:18	< 1 s	0.0468022	0.0468022	0.0000000
MERCURY	2056-07-08 15:29	< 1 min	0.0137098	0.0137091	0.0000002
MERCURY	2075-11-04 06:38	< 1 min	0.0396936	0.0396926	0.0000003
VENUS	2080-12-27 12:34	< 1 min	0.0478364	0.0478360	0.0000001
MERCURY	2088-02-04 14:07	< 1 min	0.0336674	0.0336673	0.0000001
EARTH	2100-06-25 14:27	< 1 min	0.1592996	0.1592985	0.0000004
MERCURY	2107-05-24 13:06	< 1 min	0.0318438	0.0318426	0.0000004
EARTH	2107-06-29 01:57	< 1 min	0.1175244	0.1175236	0.0000003
EARTH	2114-07-01 09:53	< 1 min	0.0988262	0.0988259	0.0000001
MERCURY	2119-08-17 05:33	< 1 min	0.0168236	0.0168229	0.0000002
EARTH	2121-07-03 14:57	< 1 s	0.1084738	0.1084737	0.0000000

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
294.50260263	294.72154390	0.00785119	MINIMUM
66.29482190	175.62921327	0.09628438	MINIMUM
1.52218721	56.52536488	0.64740673	SADDLE
1.76161207	237.12246282	1.35322726	SADDLE
180.09552251	234.95808262	1.55892427	SADDLE
180.31999077	55.03526595	3.55016072	MAXIMUM

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MOID Plots

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