Asteroids

2023KT2

Last update: 2023-06-03 23:50 UTC

Orbital Properties

Epoch

60000.0

MJD

Orbit type

Aten

Perihelion (q)

0.796

Aphelion (Q)

1.048

Eccentricity (e)

0.137

Inclination (i)

3.6

deg

Orbit period (P)

323.4

Earth MOID

0.00012

U parameter

5.9

Next Earth close approach

Date

2023-09-22

Nominal distance (from Earth center)

0.13173

19707244

Maximum Brightness

129.7

mag

Risk

Object is in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

28.1

mag

Diameter

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-05-22

Observatory

Palomar Mountain--ZTF

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)
Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion
Aphelion
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

60000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.921970

1-sigma variation

0.000021

Unit

Eccentricity (e)

Value

0.136774

1-sigma variation

0.000030

Unit

Inclination (i)

Value

3.6419

1-sigma variation

0.0008

Unit

Ascending Node (Ω)

Value

237.1644

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

219.3700

1-sigma variation

0.0031

Unit

Mean Anomaly (M)

Value

38.24081

1-sigma variation

0.00170

Unit

Perihelion

Value

0.795868

1-sigma variation

Unit

Aphelion

Value

1.048072

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.000206

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.170916

1-sigma variation

Unit

MOID

Value

0.000122

1-sigma variation

Unit

Orbit Period

Value

323.3505

1-sigma variation

Unit

U parameter

Value

5.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.38474E-10	-6.28949E-10	-1.60655E-8	2.99776E-9	6.43750E-8	3.53642E-8
e	-6.28949E-10	9.02259E-10	2.30507E-8	-4.29075E-9	-9.23088E-8	-5.07834E-8
i	-1.60655E-8	2.30507E-8	5.89145E-7	-1.09048E-7	-2.35669E-6	-1.29963E-6
Ω	2.99776E-9	-4.29075E-9	-1.09048E-7	2.19845E-8	4.42913E-7	2.35760E-7
ω	6.43750E-8	-9.23088E-8	-2.35669E-6	4.42913E-7	9.46199E-6	5.17291E-6
M	3.53642E-8	-5.07834E-8	-1.29963E-6	2.35760E-7	5.17291E-6	2.88772E-6

Date of computation: 2023-05-31 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

28.134

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

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

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

0.780328

Unit

arcsec

Source

[1]

First Observation

Value

2023-05-22.37745

Unit

Source

[2]

Last Observation

Value

2023-05-31.42446

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

55 (1)

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 2023KT2 from 1950 to 2123

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1954-06-29 16:30	> 1 mo	0.0547364	0.0456182	0.0281329
EARTH	1962-01-21 03:14	> 1 mo	0.1873691	0.1766157	0.0056563
EARTH	1962-08-10 10:24	1061.7	0.1832983	0.0637445	0.0569115
EARTH	1969-05-16 02:31	253.4	0.1627899	0.1148511	0.0159840
EARTH	1969-11-29 05:26	> 1 w	0.1787809	0.1698860	0.0031432
EARTH	1977-06-09 00:33	> 1 w	0.0409455	0.0177341	0.0228795
EARTH	1985-01-09 01:02	> 1 w	0.1919369	0.1915736	0.0003145
EARTH	1992-05-14 06:54	281.4	0.0400764	0.0226817	0.0058104
EARTH	1992-10-28 14:24	> 1 d	0.1493696	0.1439439	0.0019188
EARTH	2000-07-07 08:49	> 1 d	0.0580945	0.0560469	0.0008030
EARTH	2008-01-23 07:47	> 1 d	0.1860181	0.1850827	0.0003161
EARTH	2008-08-09 19:19	72.8	0.1744465	0.1662940	0.0027281
EARTH	2015-05-16 12:60	45.4	0.1865890	0.1817923	0.0015989
EARTH	2015-12-05 06:16	> 1 d	0.1825948	0.1818344	0.0002566
EARTH	2023-05-19 16:01	< 1 min	0.0058520	0.0058483	0.0000013
EARTH	2023-09-22 15:27	12.2	0.1317348	0.1316493	0.0000285
EARTH	2030-07-31 04:24	25.6	0.1998297	0.1967730	0.0010196
EARTH	2036-05-13 03:48	54.1	0.1807869	0.1749253	0.0019539
EARTH	2036-11-17 20:18	> 1 d	0.1923264	0.1913836	0.0003191
EARTH	2043-07-09 01:26	> 1 d	0.0532003	0.0520444	0.0004465
EARTH	2056-05-12 00:35	381.5	0.0338738	0.0215451	0.0041105
EARTH	2056-10-12 09:32	> 1 d	0.1518636	0.1469654	0.0016553
EARTH	2063-03-24 23:37	> 1 mo	0.1371898	0.0992648	0.0130559
EARTH	2063-07-21 10:33	> 1 d	0.0571118	0.0560609	0.0028285
EARTH	2076-11-29 11:01	> 1 mo	0.1992033	0.1895750	0.0080233
EARTH	2083-05-12 23:40	> 1 w	0.0242916	0.0002264	0.0849001
EARTH	2083-10-14 23:22	> 1 mo	0.1488302	0.0713098	0.0373900
EARTH	2090-05-11 03:58	> 1 d	0.0789212	0.0025783	0.7792241
EARTH	2090-10-31 23:30	> 1 mo	0.1669394	0.1433934	0.2198316
EARTH	2097-05-13 11:34	> 1 w	0.1975683	0.0050788	0.7752587
EARTH	2097-11-29 15:16	> 1 mo	0.1915575	0.1799895	0.1056412
EARTH	2112-02-03 00:47	> 1 mo	0.1862767	0.1229195	0.0396863
EARTH	2112-08-07 06:20	1434.6	0.1371012	0.0609303	0.1556632
EARTH	2119-03-19 23:18	> 1 mo	0.1400209	0.0360554	0.1341075
EARTH	2119-07-26 18:38	> 1 mo	0.0588249	0.0585708	0.0178500

Download as:

2023KT2

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2063-05-16.047	74690.047	-3.312	3.29 ± 0.001	7.94E2	5.25E-6	6.83E-8	-6.87
2069-05-14.567	76880.567	-3.217	1.91 ± 0.006	2.51E5	5.36E-8	6.97E-10	-8.92
2071-05-15.336	77611.336	-3.458	1.89 ± 0.004	2.63E5	2.29E-8	2.98E-10	-9.31
2078-05-15.250	80168.250	-3.585	2.64 ± 0.004	1.26E5	2.45E-8	3.20E-10	-9.34
2105-05-14.023	90028.023	-4.098	2.55 ± 0.017	9.16E5	6.68E-10	8.74E-12	-11.07
2105-10-19.948	90186.948	-4.117	1.00 ± 0.076	1.46E7	3.77E-11	4.91E-13	-12.33
2107-05-15.670	90759.670	-3.905	2.52 ± 0.001	7.72E4	1.21E-8	1.58E-10	-9.82


Based on 55 optical observations (of which 1 are rejected as outliers) from 2023/05/22.377 to 2023/05/31.424.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 3.49 and 3.49 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20230531 125710.382 UTC.

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