Asteroids

2023AK help

Last update: 2024-04-25 23:56 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Aten

Perihelion (q)

0.469

Aphelion (Q)

1.139

Eccentricity (e)

0.417

Inclination (i)

5.4

deg

Orbit period (P)

263.4

Earth MOID

0.00620

U parameter

6.4

Next Earth close approach

Date

2027-12-12

Nominal distance (from Earth center)

0.16284

24360351

Maximum Brightness

24.9

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

27.6

mag

Diameter

8 - 18*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-01-12

Observatory

Mt. Lemmon Survey

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

0.804116

1-sigma variation

0.000028

Unit

Eccentricity (e)

Value

0.416618

1-sigma variation

0.000148

Unit

Inclination (i)

Value

5.4082

1-sigma variation

0.0028

Unit

Long. of Ascending Node (Ω)

Value

111.1010

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

144.9557

1-sigma variation

0.0016

Unit

Mean Anomaly (M)

Value

138.84696

1-sigma variation

0.04588

Unit

Perihelion distance

Value

0.469107

1-sigma variation

Unit

Aphelion distance

Value

1.139126

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.025945

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.520983

1-sigma variation

Unit

MOID

Value

0.006196

1-sigma variation

Unit

Orbit Period

Value

263.3763

1-sigma variation

Unit

U parameter

Value

6.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.82485E-10	-4.14741E-9	-7.82745E-8	-5.55705E-9	-4.35734E-8	-1.28341E-6
e	-4.14741E-9	2.19980E-8	4.15104E-7	2.94488E-8	2.30599E-7	6.80489E-6
i	-7.82745E-8	4.15104E-7	7.83440E-6	5.56159E-7	4.35332E-6	1.28419E-4
Ω	-5.55705E-9	2.94488E-8	5.56159E-7	3.96027E-8	3.09437E-7	9.11370E-6
ω	-4.35734E-8	2.30599E-7	4.35332E-6	3.09437E-7	2.43466E-6	7.14128E-5
M	-1.28341E-6	6.80489E-6	1.28419E-4	9.11370E-6	7.14128E-5	2.10539E-3

Date of computation: 2024-04-23 10:08 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

27.647

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

8 - 18*

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 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

Unit

Source

[1]

Unobserved

Value

467

Unit

Source

[1]

Normalized RMS of residuals

Value

0.530398

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-01-12.473502

Unit

Source

[2]

Last Observation

Value

2023-01-15.74614

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

41 (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 2023AK 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	1951-01-04 12:03	> 1 w	0.1081683	0.0129654	0.0792980
EARTH	1955-11-26 11:52	> 1 w	0.1588299	0.1210336	0.0184530
VENUS	1957-11-08 23:07	> 1 d	0.0311340	0.0209979	0.0574754
EARTH	1960-10-31 10:60	1000.4	0.1049538	0.0940336	0.0076092
EARTH	1964-01-15 23:14	363.0	0.0339966	0.0029408	0.0291945
EARTH	1968-12-23 01:48	> 1 w	0.1470154	0.0747435	0.0268217
VENUS	1973-07-01 13:58	> 1 d	0.0299999	0.0053332	0.1281568
EARTH	1973-11-14 19:14	> 1 w	0.1365480	0.1002243	0.0393573
VENUS	1977-10-24 09:06	> 1 d	0.0497535	0.0061146	0.0386361
EARTH	1978-11-01 11:45	502.6	0.1206131	0.1027988	0.0068840
EARTH	1982-01-15 12:12	295.1	0.0368442	0.0052076	0.0494936
EARTH	1986-12-31 06:55	> 1 w	0.1247182	0.0232973	0.0539310
VENUS	1987-05-19 12:33	> 1 d	0.0398550	0.0216158	0.1106891
VENUS	1991-09-10 15:57	> 1 d	0.0307712	0.0215763	0.1099118
EARTH	1991-11-30 20:12	> 1 w	0.1618994	0.1445860	0.0152994
MERCURY	1995-11-21 11:55	> 1 w	0.0484591	0.0482808	0.0106090
EARTH	1996-11-02 00:07	> 1 d	0.0918574	0.0912262	0.0125579
EARTH	2000-01-14 18:21	> 1 d	0.1327574	0.0064354	0.1166425
EARTH	2005-01-10 07:11	> 1 w	0.0721471	0.0083958	0.0771925
EARTH	2009-12-08 02:57	> 1 w	0.1642955	0.1640560	0.0006492
EARTH	2014-11-05 12:52	1073.2	0.1040975	0.0930480	0.0051624
VENUS	2015-12-13 22:08	110.2	0.0061175	0.0061122	0.0000893
EARTH	2018-01-12 17:04	53.1	0.1906545	0.1864590	0.0013985
EARTH	2019-11-03 05:12	20.3	0.1641353	0.1627838	0.0004511
EARTH	2023-01-15 05:30	< 1 s	0.0101359	0.0101237	0.0000041
EARTH	2027-12-12 06:40	505.5	0.1628389	0.1626292	0.0000707
EARTH	2032-11-02 09:00	199.8	0.0921361	0.0904343	0.0006667
EARTH	2036-01-15 08:13	86.8	0.1086574	0.0993580	0.0031005
EARTH	2040-12-30 19:15	1003.9	0.1253991	0.1196823	0.0019083
VENUS	2041-03-03 08:12	263.2	0.0347439	0.0209463	0.0046431
EARTH	2045-11-20 18:54	322.9	0.1487293	0.1470601	0.0005583
VENUS	2050-09-30 03:09	117.7	0.0261086	0.0230409	0.0012067
EARTH	2050-11-01 14:06	1.2	0.1190932	0.1157448	0.0011353
EARTH	2054-01-15 12:46	36.2	0.0261914	0.0134828	0.0043989
EARTH	2058-12-27 03:38	512.2	0.1370950	0.1344944	0.0008673
EARTH	2063-11-21 22:50	395.9	0.1488534	0.1474824	0.0004597
MERCURY	2066-06-21 03:47	859.4	0.0498191	0.0480517	0.0006067
MERCURY	2067-03-08 09:12	771.0	0.0470984	0.0469293	0.0002176
EARTH	2068-11-01 04:16	25.3	0.1004443	0.0950361	0.0020324
EARTH	2072-01-16 00:41	81.7	0.0725669	0.0560808	0.0055041
VENUS	2075-01-03 02:50	430.6	0.0265112	0.0066468	0.0076023
EARTH	2077-01-06 10:44	632.7	0.0960931	0.0905750	0.0018416
VENUS	2079-04-26 08:56	25.0	0.0129816	0.0110849	0.0006504
EARTH	2081-12-06 05:56	1171.4	0.1629765	0.1621423	0.0002830
EARTH	2086-11-04 05:04	868.3	0.0949216	0.0895788	0.0026590
VENUS	2088-11-19 16:56	827.5	0.0430100	0.0213168	0.0122979
EARTH	2090-01-13 15:05	460.9	0.1600599	0.1217783	0.0127677
EARTH	2091-11-04 04:12	446.3	0.1946259	0.1610406	0.0115231
VENUS	2093-03-14 17:20	938.8	0.0451446	0.0212525	0.0149485
EARTH	2095-01-13 00:51	1415.4	0.0510011	0.0182989	0.0112662
EARTH	2099-12-09 08:15	> 1 d	0.1633026	0.1625216	0.0002775
EARTH	2104-11-04 05:53	82.2	0.0929687	0.0920241	0.0003254
EARTH	2108-01-15 21:07	215.3	0.1383767	0.1230496	0.0051111
EARTH	2113-01-10 20:47	> 1 d	0.0761625	0.0535198	0.0075825
VENUS	2113-02-26 22:26	720.6	0.0415181	0.0070703	0.0125770
EARTH	2117-12-04 14:08	> 1 d	0.1626997	0.1603067	0.0008273
VENUS	2122-09-25 08:00	346.0	0.0483246	0.0334700	0.0052615
EARTH	2122-11-03 10:26	112.4	0.0884194	0.0882872	0.0002234

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