Asteroids

2023KU help

Last update: 2024-05-01 14:36 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.423

Aphelion (Q)

1.623

Eccentricity (e)

0.587

Inclination (i)

3.7

deg

Orbit period (P)

378.0

Earth MOID

0.00679

U parameter

2.0

Next Earth close approach

Date

2025-04-11

Nominal distance (from Earth center)

0.00707

1057429

Maximum Brightness

13.7

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

22.2

mag

Diameter

100 - 220*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-05-16

Observatory

Pan-STARRS 1, Haleakala

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

1.023117

1-sigma variation

7.052E-8

Unit

Eccentricity (e)

Value

0.586560

1-sigma variation

0.000001

Unit

Inclination (i)

Value

3.7459

1-sigma variation

1.062E-5

Unit

Long. of Ascending Node (Ω)

Value

27.6336

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

49.7129

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

55.77347

1-sigma variation

0.00010

Unit

Perihelion distance

Value

0.422998

1-sigma variation

Unit

Aphelion distance

Value

1.623237

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.508120

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.076710

1-sigma variation

Unit

MOID

Value

0.006789

1-sigma variation

Unit

Orbit Period

Value

377.9954

1-sigma variation

Unit

U parameter

Value

2.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.97241E-15	9.09132E-14	-2.65327E-13	-2.38078E-12	-2.68301E-12	-2.53666E-12
e	9.09132E-14	1.68314E-12	-5.16788E-12	-4.59864E-11	-5.19763E-11	-3.52698E-11
i	-2.65327E-13	-5.16788E-12	1.12694E-10	5.62716E-10	-1.83615E-10	-9.54767E-11
Ω	-2.38078E-12	-4.59864E-11	5.62716E-10	7.51560E-9	-4.25844E-9	-5.41580E-10
ω	-2.68301E-12	-5.19763E-11	-1.83615E-10	-4.25844E-9	7.95895E-9	-7.13022E-10
M	-2.53666E-12	-3.52698E-11	-9.54767E-11	-5.41580E-10	-7.13022E-10	9.60354E-9

Date of computation: 2024-04-29 11:58 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

22.206

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

100 - 220*

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 ODIM	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

3592

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.455554

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2014-06-29.52773

Unit

Source

[2]

Last Observation

Value

2024-04-29.357368

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

43 (0)

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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (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 2023KU 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	1955-07-29 22:01	< 1 min	0.1726098	0.1726061	0.0000012
EARTH	1956-08-06 03:43	< 1 min	0.0871435	0.0871399	0.0000012
VENUS	1963-01-27 03:08	< 1 min	0.0237172	0.0237086	0.0000029
EARTH	1966-04-08 10:58	< 1 min	0.1564610	0.1564541	0.0000023
EARTH	1967-04-13 19:44	< 1 min	0.0608289	0.0608221	0.0000023
VENUS	1982-10-06 23:09	< 1 min	0.0388381	0.0388217	0.0000055
EARTH	1984-08-04 16:32	< 1 min	0.0647199	0.0647173	0.0000009
VENUS	1986-09-26 12:51	< 1 min	0.0104302	0.0104066	0.0000079
EARTH	1995-04-10 05:18	< 1 min	0.0647295	0.0647164	0.0000044
EARTH	1996-04-16 15:58	< 1 min	0.1449293	0.1449136	0.0000052
VENUS	2002-06-11 05:58	< 1 min	0.0395273	0.0394937	0.0000112
VENUS	2009-07-03 16:09	< 1 min	0.0422221	0.0422030	0.0000064
EARTH	2013-08-01 05:16	< 1 min	0.1178677	0.1178631	0.0000015
EARTH	2014-08-08 02:16	< 1 min	0.1253780	0.1253745	0.0000011
VENUS	2025-03-17 11:48	< 1 min	0.0177729	0.0177706	0.0000008
EARTH	2025-04-11 15:34	< 1 min	0.0070685	0.0070677	0.0000003
EARTH	2026-04-19 13:05	< 1 min	0.1993562	0.1993395	0.0000055
VENUS	2032-04-07 06:18	2.6	0.0370117	0.0369057	0.0000353
EARTH	2043-08-01 10:42	2.1	0.1256846	0.1256009	0.0000279
EARTH	2044-08-07 10:23	1.2	0.1152825	0.1152008	0.0000273
VENUS	2055-01-08 17:40	2.1	0.0184842	0.0183992	0.0000283
EARTH	2055-04-10 16:52	1.2	0.0616136	0.0615388	0.0000249
EARTH	2056-04-16 14:10	< 1 min	0.1335400	0.1335040	0.0000120
EARTH	2074-08-01 02:20	12.3	0.1308800	0.1303000	0.0001935
EARTH	2075-08-07 22:03	7.5	0.1021262	0.1015872	0.0001800
VENUS	2076-11-19 16:46	19.3	0.0160699	0.0160675	0.0000047
VENUS	2083-12-09 19:37	118.5	0.0114748	0.0080614	0.0013860
EARTH	2086-04-09 06:46	9.6	0.1415743	0.1384499	0.0010415
EARTH	2087-04-14 16:03	50.3	0.0639628	0.0614474	0.0008390
EARTH	2104-07-29 22:28	163.0	0.1939858	0.1858301	0.0027257
EARTH	2105-08-06 23:50	133.3	0.0677276	0.0656558	0.0008862
VENUS	2106-09-14 13:40	258.0	0.0087631	0.0075025	0.0020714
EARTH	2116-04-11 18:29	> 1 d	0.0341613	0.0066591	0.0397920
EARTH	2117-04-19 16:24	> 1 d	0.1766522	0.0621634	0.0382140
VENUS	2122-06-02 00:48	> 1 d	0.0400039	0.0162906	0.0305580

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