Asteroids

413577 2005UL5 help

Last update: 2025-05-21 08:47 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.403

Aphelion (Q)

1.470

Eccentricity (e)

0.570

Inclination (i)

14.3

deg

Orbit period (P)

330.9

Earth MOID

0.00557

U parameter

0.3

A₂

-45.5

10^-15au/days²

Next Earth close approach

Date

2034-11-22

Nominal distance (from Earth center)

0.12732

19046802

Maximum Brightness

18.1

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

20.3

mag

Diameter

240 - 500*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2005-10-27

Observatory

Lincoln Laboratory ETS, New Mexico

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

0.936243

1-sigma variation

3.765E-9

Unit

Eccentricity (e)

Value

0.569697

1-sigma variation

4.385E-8

Unit

Inclination (i)

Value

14.3199

1-sigma variation

4.332E-6

Unit

Long. of Ascending Node (Ω)

Value

58.8618

1-sigma variation

2.559E-6

Unit

Arg. of Perihelion (ω)

Value

127.7984

1-sigma variation

3.648E-6

Unit

Mean Anomaly (M)

Value

95.21482

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.402868

1-sigma variation

Unit

Aphelion distance

Value

1.469618

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.016179

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.543033

1-sigma variation

Unit

MOID

Value

0.005574

1-sigma variation

Unit

Orbit Period

Value

330.8883

1-sigma variation

Unit

U parameter

Value

0.3

1-sigma variation

Unit

A₂

Value

-45.51394

1-sigma variation

4.83352

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	1.41727E-17	9.96690E-17	1.14584E-16	-8.61284E-16	6.45445E-15	-4.92911E-14	1.73783E-8
e	9.96690E-17	1.92314E-15	-2.37790E-14	1.47689E-14	9.07347E-14	-2.84164E-13	1.10281E-7
i	1.14584E-16	-2.37790E-14	1.87640E-11	-4.36330E-12	3.16287E-12	-9.49765E-13	6.53072E-7
Ω	-8.61284E-16	1.47689E-14	-4.36330E-12	6.54606E-12	-6.86937E-12	2.88321E-12	-2.03463E-6
ω	6.45445E-15	9.07347E-14	3.16287E-12	-6.86937E-12	1.33063E-11	-1.86049E-11	8.48202E-6
M	-4.92911E-14	-2.84164E-13	-9.49765E-13	2.88321E-12	-1.86049E-11	1.82684E-10	-5.71128E-5
A₂	1.73783E-8	1.10281E-7	6.53072E-7	-2.03463E-6	8.48202E-6	-5.71128E-5	2.33629E1

Date of computation: 2025-05-21 08:47 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

[5]

Quality

Value

Unit

Source

[5]

Amplitude

Value

0.35

Unit

mag

Source

[5]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Scomp

Unit

Source

[1]

[2]

Taxonomy (all)

Value

Sq,Scomp

Unit

Source

[3]

[4]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

20.261

Unit

mag

Source

[6]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[6]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[7]

Diameter

Value

240 - 500*

Unit

Source

[7]

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

Visual S

Unit

Source

[8]

[9]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Michaël Marsset et al 2022 AJ 163 165
[2]	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)
[3]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[4]	EARN	1.) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical characterization of Warm Spitzer-observed near-Earth objects) 2.) 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)
[5]	EARN	1.) Oey, J.; Williams, H.; Groom, R. (2017) Minor Planet Bul. 44, 200-204.
[6]	ESA Aegis	ESA orbit determination and impact monitoring system
[7]	Estimation	Estimated from absolute magnitude
[8]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage
[9]	EARN	1.) Binzel, R.P. et al. (2006) LPSC 37, 1491. (The MIT-Hawaii-IRTF joint campaign for NEO spectral reconnaissance.) 2.) Binzel, R.P. et al. href="http://smass.mit.edu/minus.html"> Webpage

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

6976

Unit

Source

[1]

Unobserved

Value

216

Unit

Source

[1]

Normalized RMS of residuals

Value

0.520017

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2005-10-27.31479

Unit

Source

[2]

Last Observation

Value

2024-12-02.100962

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

413 (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

2015-11-16

Unit

Source

[3]

Last Observation

Value

2015-11-21

Unit

Source

[3]

Delay (Discarded)

Value

4 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

6 (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 413577 2005UL5 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	1956-11-20 18:59	< 1 s	0.1746357	0.1746353	0.0000001
MERCURY	1957-01-30 20:42	< 1 min	0.0414116	0.0414114	0.0000000
MERCURY	1960-09-26 15:10	< 1 min	0.0441832	0.0441799	0.0000011
EARTH	1966-11-20 20:12	< 1 min	0.0331431	0.0331356	0.0000025
MERCURY	1972-07-09 21:33	< 1 min	0.0199819	0.0199774	0.0000015
EARTH	1976-11-17 08:20	< 1 min	0.0762538	0.0762479	0.0000020
MERCURY	1984-04-18 09:47	< 1 min	0.0422829	0.0422819	0.0000003
MERCURY	1987-12-15 07:00	< 1 min	0.0463801	0.0463768	0.0000011
MERCURY	1999-09-27 13:14	< 1 min	0.0191618	0.0191612	0.0000002
EARTH	2005-11-21 18:21	< 1 s	0.0966327	0.0966323	0.0000001
MERCURY	2011-07-08 12:59	< 1 min	0.0401712	0.0401710	0.0000000
EARTH	2015-11-20 04:13	< 1 s	0.0152801	0.0152801	0.0000000
MERCURY	2030-07-25 01:16	< 1 min	0.0248682	0.0248673	0.0000003
EARTH	2034-11-22 04:53	< 1 s	0.1273200	0.1273181	0.0000006
EARTH	2044-11-17 21:50	< 1 min	0.0691062	0.0691023	0.0000013
MERCURY	2049-08-01 17:27	< 1 min	0.0305621	0.0305595	0.0000009
MERCURY	2053-03-22 11:20	< 1 min	0.0394474	0.0394415	0.0000020
EARTH	2063-11-22 00:04	< 1 min	0.0554162	0.0554099	0.0000021
MERCURY	2068-08-05 12:05	< 1 min	0.0407727	0.0407711	0.0000005
MERCURY	2072-03-30 09:54	< 1 min	0.0225065	0.0225013	0.0000017
EARTH	2073-11-15 20:39	< 1 min	0.1388350	0.1388300	0.0000017
MERCURY	2087-08-18 17:37	< 1 min	0.0369178	0.0369168	0.0000003
MERCURY	2091-04-11 07:17	< 1 min	0.0364424	0.0364400	0.0000008
EARTH	2092-11-20 22:11	< 1 min	0.0312709	0.0312689	0.0000007
EARTH	2102-11-18 08:15	< 1 min	0.1094017	0.1094003	0.0000005
MERCURY	2103-01-17 00:10	< 1 min	0.0378487	0.0378481	0.0000002
MERCURY	2118-06-20 18:50	< 1 min	0.0300123	0.0300097	0.0000009
EARTH	2121-11-23 04:28	< 1 min	0.1492918	0.1492876	0.0000014

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
264.61606764	316.07855820	0.00557398	MINIMUM
92.80094488	211.48863830	0.24308975	MINIMUM
175.79558057	263.73150422	0.52696803	SADDLE
359.22326849	81.46968610	0.60824208	SADDLE
1.54923153	265.91934054	1.39863473	SADDLE
181.94639121	86.97866581	2.45702831	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out