Asteroids

163732 2003KP2 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.836

Aphelion (Q)

4.669

Eccentricity (e)

0.696

Inclination (i)

44.6

deg

Orbit period (P)

1667.8

Earth MOID

0.15736

U parameter

0.0

Next Earth close approach

Date

Nominal distance (from Earth center)

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

15.5

mag

Diameter

2470

Taxonomic type

Rotation period (T)

151.7

Discovery Information

Discovery Date

2003-05-22

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

2.752304

1-sigma variation

1.107E-8

Unit

Eccentricity (e)

Value

0.696263

1-sigma variation

3.685E-8

Unit

Inclination (i)

Value

44.6120

1-sigma variation

6.907E-6

Unit

Long. of Ascending Node (Ω)

Value

193.4017

1-sigma variation

8.350E-6

Unit

Arg. of Perihelion (ω)

Value

190.6683

1-sigma variation

8.906E-6

Unit

Mean Anomaly (M)

Value

304.23264

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.835977

1-sigma variation

Unit

Aphelion distance

Value

4.668630

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

3.489570

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.157974

1-sigma variation

Unit

MOID

Value

0.157356

1-sigma variation

Unit

Orbit Period

Value

1667.7961

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.22531E-16	3.47302E-17	5.85058E-15	-1.23070E-14	5.34346E-14	-1.20339E-13
e	3.47302E-17	1.35813E-15	2.65144E-14	4.49128E-15	8.68245E-14	-2.10756E-14
i	5.85058E-15	2.65144E-14	4.77023E-11	2.13091E-11	-6.96944E-12	-1.29815E-11
Ω	-1.23070E-14	4.49128E-15	2.13091E-11	6.97142E-11	-5.05822E-11	7.29359E-12
ω	5.34346E-14	8.68245E-14	-6.96944E-12	-5.05822E-11	7.93097E-11	-5.52977E-11
M	-1.20339E-13	-2.10756E-14	-1.29815E-11	7.29359E-12	-5.52977E-11	1.25040E-10

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

151.7

Unit

Source

[4]

Quality

Value

3,T

Unit

Source

[4]

Amplitude

Value

1.7

Unit

mag

Source

[4]

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]

[2]

Taxonomy (all)

Value

Unit

Source

[3]

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

15.477

Unit

mag

Source

[5]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[5]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05

Unit

Source

[1]

Diameter

Value

2470

Unit

Source

[1]

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

[6]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) N. G. Simion et al, Spectral properties of near-Earth objects with low-Jovian Tisserand invariant (2021)
[2]	EARN	1.) DeMeo, F. & R.P. Binzel (2008) Icarus 194, 436-449. (Comets in the near-Earth object population) ()
[3]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[4]	EARN	1.) Petr Pravec's Ondrejov NEO Photometric Program Webpage "Prepublished Periods"
[5]	ESA Aegis	ESA orbit determination and impact monitoring system
[6]	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

26279

Unit

Source

[1]

Unobserved

Value

139

Unit

Source

[1]

Normalized RMS of residuals

Value

0.482524

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1953-07-10.27361

Unit

Source

[2]

Last Observation

Value

2025-06-21.401142

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

709 (7)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

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

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 163732 2003KP2 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	2003-10-05 12:28	< 1 min	0.1740838	0.1740834	0.0000001

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
354.91871556	271.35343938	0.15696705	MINIMUM
5.19373871	109.01136148	1.83115804	SADDLE
181.38909290	99.03772088	3.67774221	SADDLE
178.94941869	278.29091071	5.65944860	MAXIMUM

Download:

MOID Plots

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