Asteroids

525268 2004XL14 help

Last update: 2024-04-19 00:31 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Aten

Perihelion (q)

0.448

Aphelion (Q)

1.071

Eccentricity (e)

0.410

Inclination (i)

21.5

deg

Orbit period (P)

241.8

Earth MOID

0.02793

U parameter

1.2

A₂

-39.0

10^-15au/days²

Next Earth close approach

Date

2049-12-05

Nominal distance (from Earth center)

0.16495

24675737

Maximum Brightness

19.6

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

21.3

mag

Diameter

300

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2004-12-10

Observatory

Catalina Sky 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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.759533

1-sigma variation

1.032E-8

Unit

Eccentricity (e)

Value

0.410427

1-sigma variation

3.037E-7

Unit

Inclination (i)

Value

21.4645

1-sigma variation

1.898E-5

Unit

Long. of Ascending Node (Ω)

Value

85.6041

1-sigma variation

3.177E-6

Unit

Arg. of Perihelion (ω)

Value

157.5868

1-sigma variation

3.430E-5

Unit

Mean Anomaly (M)

Value

264.84969

1-sigma variation

0.00005

Unit

Perihelion distance

Value

0.447800

1-sigma variation

Unit

Aphelion distance

Value

1.071266

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.034486

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.558116

1-sigma variation

Unit

MOID

Value

0.027926

1-sigma variation

Unit

Orbit Period

Value

241.7789

1-sigma variation

Unit

U parameter

Value

1.2

1-sigma variation

Unit

A₂

Value

-38.97736

1-sigma variation

11.39340

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	1.06495E-16	2.63688E-15	8.74580E-14	1.46683E-14	-2.98954E-13	-9.21878E-14	1.17355E-7
e	2.63688E-15	9.22518E-14	3.03404E-12	4.64183E-13	-1.01575E-11	5.85933E-12	2.90060E-6
i	8.74580E-14	3.03404E-12	3.60339E-10	1.45963E-11	-2.87452E-10	6.60192E-11	9.31891E-5
Ω	1.46683E-14	4.64183E-13	1.45963E-11	1.00927E-11	-6.43889E-11	3.19940E-11	1.63164E-5
ω	-2.98954E-13	-1.01575E-11	-2.87452E-10	-6.43889E-11	1.17637E-9	-6.73584E-10	-3.29691E-4
M	-9.21878E-14	5.85933E-12	6.60192E-11	3.19940E-11	-6.73584E-10	2.76924E-9	-9.78485E-5
A₂	1.17355E-7	2.90060E-6	9.31891E-5	1.63164E-5	-3.29691E-4	-9.78485E-5	1.29810E2

Date of computation: 2024-02-21 14:29 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

21.321

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

300

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

Visual S

Radar R

Unit

Source

[3]

[4]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	EARN	1.) Busch, M.W. et al. (2012) DPS 44 302-05. (abstract) (Radar Imaging Of 11066 Sigurd, 2000 YF29, And 2004 XL14 And The Obliquity Distribution Of Contact Binary Near-Earth Asteroids)
[3]	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
[4]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage 2.) Busch, M.W. et al. (2012) DPS 44 302-05. (abstract) (Radar Imaging Of 11066 Sigurd, 2000 YF29, And 2004 XL14 And The Obliquity Distribution Of Contact Binary Near-Earth Asteroids)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

5109

Unit

Source

[1]

Unobserved

Value

1961

Unit

Source

[1]

Normalized RMS of residuals

Value

0.584249

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2004-12-10.28565

Unit

Source

[2]

Last Observation

Value

2018-12-06.641816

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

287 (12)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2008-12-17

Unit

Source

[3]

Last Observation

Value

2008-12-18

Unit

Source

[3]

Delay (Discarded)

Value

2 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

4 (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 525268 2004XL14 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1951-12-10 04:17	73.1	0.1370463	0.1358353	0.0004043
EARTH	1953-12-14 16:02	56.4	0.0912254	0.0899739	0.0004179
EARTH	1955-12-18 19:25	35.2	0.0444762	0.0434193	0.0003554
EARTH	1957-12-20 09:08	16.5	0.0318054	0.0311311	0.0002316
EARTH	1959-12-21 18:18	2.8	0.0823881	0.0811255	0.0004214
EARTH	1961-12-20 23:12	6.7	0.1475287	0.1462372	0.0004306
EARTH	2000-12-05 18:08	4.1	0.1639563	0.1638971	0.0000197
EARTH	2002-12-12 06:23	2.6	0.1177278	0.1176807	0.0000157
EARTH	2004-12-16 11:14	1.2	0.0678869	0.0678552	0.0000106
EARTH	2006-12-20 00:32	< 1 min	0.0278590	0.0278559	0.0000011
EARTH	2008-12-20 23:35	< 1 min	0.0612298	0.0612205	0.0000031
EARTH	2010-12-21 14:03	< 1 min	0.1253577	0.1253543	0.0000011
EARTH	2012-12-20 03:01	< 1 min	0.1961618	0.1961615	0.0000001
EARTH	2049-12-05 21:21	29.2	0.1649471	0.1645223	0.0001417
EARTH	2051-12-12 10:56	29.0	0.1188656	0.1183348	0.0001771
EARTH	2053-12-16 17:13	23.8	0.0693270	0.0687087	0.0002064
EARTH	2055-12-20 07:31	14.8	0.0289341	0.0287298	0.0000717
EARTH	2057-12-21 07:49	6.7	0.0586457	0.0576865	0.0003207
EARTH	2059-12-22 00:41	3.9	0.1220881	0.1207666	0.0004408
EARTH	2061-12-20 15:14	13.0	0.1925063	0.1909341	0.0005242
EARTH	2098-12-05 11:02	197.0	0.1696756	0.1668934	0.0009315
EARTH	2100-12-12 01:47	182.8	0.1248249	0.1216509	0.0010623
EARTH	2102-12-17 13:39	141.6	0.0755717	0.0721441	0.0011511
EARTH	2104-12-20 09:34	85.1	0.0320453	0.0304129	0.0006216
EARTH	2106-12-22 14:08	38.8	0.0510181	0.0471456	0.0013205
EARTH	2108-12-22 12:02	7.5	0.1113006	0.1062282	0.0016955
EARTH	2110-12-22 06:29	40.7	0.1804484	0.1749698	0.0018279

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