Asteroids

322756 2001CK32 help

Last update: 2025-04-09 07:59 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.447

Aphelion (Q)

1.002

Eccentricity (e)

0.383

Inclination (i)

8.1

deg

Orbit period (P)

225.2

Earth MOID

0.07757

U parameter

0.9

A₂

-24.5

10^-15au/days²

Next Earth close approach

Date

2030-02-07

Nominal distance (from Earth center)

0.0782

11697827

Maximum Brightness

18.1

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

19.1

mag

Diameter

400 - 900*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2001-02-13

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

0.724357

1-sigma variation

5.206E-9

Unit

Eccentricity (e)

Value

0.382672

1-sigma variation

6.391E-8

Unit

Inclination (i)

Value

8.1380

1-sigma variation

1.330E-5

Unit

Long. of Ascending Node (Ω)

Value

109.2787

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

234.0112

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

227.39162

1-sigma variation

0.00004

Unit

Perihelion distance

Value

0.447165

1-sigma variation

Unit

Aphelion distance

Value

1.001548

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.186285

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.511334

1-sigma variation

Unit

MOID

Value

0.077571

1-sigma variation

Unit

Orbit Period

Value

225.1787

1-sigma variation

Unit

U parameter

Value

0.9

1-sigma variation

Unit

A₂

Value

-24.50970

1-sigma variation

6.17092

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	2.71044E-17	1.69683E-18	1.72305E-14	9.60078E-14	-9.27969E-14	-1.07248E-13	3.08757E-8
e	1.69683E-18	4.08468E-15	2.19141E-13	3.74402E-13	3.91024E-13	-1.63399E-12	3.58251E-8
i	1.72305E-14	2.19141E-13	1.76813E-10	7.68311E-10	-7.17922E-10	-1.33567E-10	4.81221E-6
Ω	9.60078E-14	3.74402E-13	7.68311E-10	3.89372E-9	-3.83906E-9	-3.58966E-10	3.12751E-5
ω	-9.27969E-14	3.91024E-13	-7.17922E-10	-3.83906E-9	3.98015E-9	-4.71054E-11	-1.67521E-5
M	-1.07248E-13	-1.63399E-12	-1.33567E-10	-3.58966E-10	-4.71054E-11	1.24480E-9	-1.47516E-4
A₂	3.08757E-8	3.58251E-8	4.81221E-6	3.12751E-5	-1.67521E-5	-1.47516E-4	3.80803E1

Date of computation: 2025-04-09 07:59 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

19.098

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

400 - 900*

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

[-]

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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

7723

Unit

Source

[1]

Unobserved

Value

1181

Unit

Source

[1]

Normalized RMS of residuals

Value

0.445538

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2001-02-13.47491

Unit

Source

[2]

Last Observation

Value

2022-04-07.133092

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1294 (2)

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 322756 2001CK32 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	1951-03-22 19:05	23.1	0.1587080	0.1580324	0.0002262
EARTH	1959-02-19 15:34	110.3	0.1029162	0.1024061	0.0001701
EARTH	1967-02-06 14:05	6.4	0.1175342	0.1166886	0.0002825
EARTH	1972-03-20 04:42	32.8	0.1440297	0.1436842	0.0001157
EARTH	1980-02-10 14:51	28.6	0.0807762	0.0805896	0.0000626
EARTH	1988-02-07 11:27	2.0	0.1297268	0.1295345	0.0000641
EARTH	1993-03-22 16:52	3.2	0.1578882	0.1578060	0.0000274
EARTH	2001-02-19 04:41	7.9	0.1044370	0.1044010	0.0000120
EARTH	2009-02-06 03:22	< 1 min	0.1199706	0.1199500	0.0000069
EARTH	2014-03-21 06:00	< 1 min	0.1464739	0.1464720	0.0000006
EARTH	2022-02-15 12:01	< 1 min	0.0967662	0.0967644	0.0000006
VENUS	2028-02-25 22:09	< 1 min	0.0484996	0.0484780	0.0000072
VENUS	2028-10-07 15:59	< 1 min	0.0461933	0.0461705	0.0000076
VENUS	2029-05-20 09:39	< 1 min	0.0444800	0.0444558	0.0000081
VENUS	2029-12-31 03:09	< 1 min	0.0432790	0.0432529	0.0000087
EARTH	2030-02-07 09:21	1.2	0.0781951	0.0781950	0.0000001
VENUS	2030-08-12 20:19	< 1 min	0.0420285	0.0419999	0.0000096
VENUS	2031-03-25 13:40	< 1 min	0.0412786	0.0412465	0.0000107
VENUS	2031-11-05 07:01	< 1 min	0.0408280	0.0407909	0.0000124
VENUS	2032-06-17 00:08	< 1 min	0.0405424	0.0404982	0.0000148
VENUS	2033-01-27 17:02	1.2	0.0404150	0.0403607	0.0000182
VENUS	2033-09-09 09:44	1.5	0.0403937	0.0403256	0.0000229
VENUS	2034-04-22 02:31	1.9	0.0404270	0.0403402	0.0000292
VENUS	2034-12-02 19:18	2.4	0.0405802	0.0404669	0.0000382
VENUS	2035-07-15 11:47	3.0	0.0409602	0.0408066	0.0000518
VENUS	2036-02-25 03:52	3.6	0.0416109	0.0413989	0.0000716
VENUS	2036-10-06 19:50	4.3	0.0426367	0.0423399	0.0001003
VENUS	2037-05-19 11:38	4.9	0.0440390	0.0436263	0.0001396
VENUS	2037-12-30 03:23	5.3	0.0459905	0.0454227	0.0001919
EARTH	2038-02-08 08:10	29.7	0.0818283	0.0816813	0.0000498
VENUS	2038-08-11 18:49	5.3	0.0483811	0.0476075	0.0002613
EARTH	2046-03-03 15:09	290.8	0.1252106	0.1243649	0.0002829
EARTH	2057-02-05 22:47	45.7	0.0840786	0.0830876	0.0003518
EARTH	2065-03-14 04:53	236.1	0.1381507	0.1371132	0.0003526
EARTH	2068-02-08 07:38	50.4	0.1933126	0.1897282	0.0011966
MERCURY	2072-10-17 20:34	180.8	0.0490671	0.0482078	0.0003537
EARTH	2076-02-07 04:46	65.1	0.0803701	0.0803405	0.0000223
EARTH	2084-03-02 14:26	460.9	0.1256687	0.1243120	0.0004546
EARTH	2095-02-06 15:14	109.6	0.0836437	0.0827182	0.0003810
EARTH	2103-03-17 18:13	412.7	0.1422317	0.1399543	0.0007927
EARTH	2106-02-08 15:28	105.8	0.1831057	0.1753426	0.0025994
EARTH	2114-02-10 03:31	380.8	0.0868870	0.0847649	0.0007838
EARTH	2122-03-19 11:00	409.2	0.1461325	0.1429696	0.0011117
EARTH	2125-02-08 10:23	132.5	0.1824794	0.1728657	0.0032231

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
143.79379906	35.59213319	0.07757147	MINIMUM
358.00284056	239.61068974	0.56589670	SADDLE
356.71011139	57.60309856	1.43677056	SADDLE
177.38013404	238.21387189	2.00647900	MAXIMUM

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MOID Plots

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