Asteroids

612901 2004XP14 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.885

Aphelion (Q)

1.219

Eccentricity (e)

0.159

Inclination (i)

32.9

deg

Orbit period (P)

394.1

Earth MOID

0.00305

U parameter

0.0

Next Earth close approach

Date

2045-12-31

Nominal distance (from Earth center)

0.12712

19017199

Maximum Brightness

17.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

19.6

mag

Diameter

300 - 700*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2004-12-10

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.051904

1-sigma variation

3.710E-11

Unit

Eccentricity (e)

Value

0.158595

1-sigma variation

4.549E-9

Unit

Inclination (i)

Value

32.9488

1-sigma variation

1.657E-6

Unit

Long. of Ascending Node (Ω)

Value

281.0098

1-sigma variation

3.984E-7

Unit

Arg. of Perihelion (ω)

Value

273.7282

1-sigma variation

1.065E-6

Unit

Mean Anomaly (M)

Value

59.56665

1-sigma variation

9.053E-7

Unit

Perihelion distance

Value

0.885077

1-sigma variation

Unit

Aphelion distance

Value

1.218731

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.003168

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.052571

1-sigma variation

Unit

MOID

Value

0.003050

1-sigma variation

Unit

Orbit Period

Value

394.0601

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.37674E-21	-1.39453E-20	-1.43444E-18	-7.24869E-19	-1.35444E-18	-6.80358E-18
e	-1.39453E-20	2.06902E-17	-2.10272E-15	-5.54228E-16	-2.56289E-15	1.09208E-15
i	-1.43444E-18	-2.10272E-15	2.74507E-12	4.05080E-13	1.93159E-13	-5.82382E-13
Ω	-7.24869E-19	-5.54228E-16	4.05080E-13	1.58752E-13	-6.61050E-14	-6.36525E-14
ω	-1.35444E-18	-2.56289E-15	1.93159E-13	-6.61050E-14	1.13471E-12	-7.63295E-13
M	-6.80358E-18	1.09208E-15	-5.82382E-13	-6.36525E-14	-7.63295E-13	8.19481E-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

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

19.634

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

300 - 700*

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 Aegis	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

5785

Unit

Source

[1]

Unobserved

Value

1850

Unit

Source

[1]

Normalized RMS of residuals

Value

0.414372

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2004-12-10.4589

Unit

Source

[2]

Last Observation

Value

2020-10-12.128123

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1394 (21)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2006-07-04

Unit

Source

[3]

Last Observation

Value

2020-07-13

Unit

Source

[3]

Delay (Discarded)

Value

1 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

4 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

5 (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 612901 2004XP14 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	1956-06-26 20:45	< 1 min	0.1679184	0.1679150	0.0000011
EARTH	1968-01-03 20:21	< 1 s	0.0642199	0.0642198	0.0000000
EARTH	1969-07-08 11:12	< 1 s	0.1493586	0.1493582	0.0000001
EARTH	1979-12-31 07:27	< 1 min	0.1883788	0.1883757	0.0000011
EARTH	1981-07-01 10:50	< 1 min	0.0422305	0.0422267	0.0000012
EARTH	1993-01-04 04:57	< 1 s	0.1176338	0.1176320	0.0000006
EARTH	2004-12-31 14:11	< 1 s	0.1460492	0.1460490	0.0000001
EARTH	2006-07-03 04:25	< 1 s	0.0028907	0.0028907	0.0000000
EARTH	2019-01-04 03:50	< 1 s	0.0731113	0.0731113	0.0000000
EARTH	2020-07-06 16:45	< 1 s	0.1066582	0.1066582	0.0000000
EARTH	2045-12-31 17:03	< 1 s	0.1271221	0.1271221	0.0000000
EARTH	2047-07-01 11:31	< 1 s	0.0617702	0.0617702	0.0000000
EARTH	2060-01-03 09:15	< 1 s	0.0518904	0.0518904	0.0000000
EARTH	2061-07-04 09:53	< 1 s	0.0338703	0.0338702	0.0000000
EARTH	2074-01-05 04:51	< 1 s	0.1457695	0.1457694	0.0000000
EARTH	2075-07-10 22:01	< 1 s	0.1929514	0.1929513	0.0000000
EARTH	2086-12-31 00:14	< 1 s	0.1715379	0.1715377	0.0000000
EARTH	2088-06-29 08:20	< 1 s	0.1064592	0.1064591	0.0000000
EARTH	2101-01-03 19:36	< 1 s	0.0525079	0.0525079	0.0000000
EARTH	2102-07-06 00:11	< 1 s	0.0398034	0.0398032	0.0000000
EARTH	2115-01-06 23:22	< 1 s	0.1871895	0.1871894	0.0000000

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
77.25988859	178.79312581	0.00126039	MINIMUM
276.94695396	0.05150393	0.05019635	MINIMUM
357.57275279	88.55540378	0.54558309	SADDLE
176.43391949	270.50211334	0.66302309	SADDLE
1.28631488	273.74681337	1.80734706	SADDLE
210.99604712	124.38087539	2.13891023	MAXIMUM

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MOID Plots

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