Asteroids

2023SE4 help

Last update: 2025-02-19 13:28 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.805

Aphelion (Q)

1.096

Eccentricity (e)

0.153

Inclination (i)

6.0

deg

Orbit period (P)

338.6

Earth MOID

0.00727

U parameter

5.9

Next Earth close approach

Date

2035-05-17

Nominal distance (from Earth center)

0.09223

13797663

Maximum Brightness

25.9

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.9

mag

Diameter

11 - 24*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-20

Observatory

Pan-STARRS 2, Haleakala

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

0.950724

1-sigma variation

0.000023

Unit

Eccentricity (e)

Value

0.153193

1-sigma variation

0.000081

Unit

Inclination (i)

Value

5.9618

1-sigma variation

0.0040

Unit

Long. of Ascending Node (Ω)

Value

182.9990

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

303.3477

1-sigma variation

0.0033

Unit

Mean Anomaly (M)

Value

155.06103

1-sigma variation

0.02720

Unit

Perihelion distance

Value

0.805079

1-sigma variation

Unit

Aphelion distance

Value

1.096368

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.140803

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.011469

1-sigma variation

Unit

MOID

Value

0.007273

1-sigma variation

Unit

Orbit Period

Value

338.5945

1-sigma variation

Unit

U parameter

Value

5.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.11889E-10	-1.82169E-9	-8.95906E-8	1.11581E-9	-7.13320E-8	-6.12945E-7
e	-1.82169E-9	6.60322E-9	3.24546E-7	-4.61984E-9	2.42330E-7	2.20805E-6
i	-8.95906E-8	3.24546E-7	1.59529E-5	-2.26469E-7	1.19388E-5	1.08546E-4
Ω	1.11581E-9	-4.61984E-9	-2.26469E-7	6.51201E-9	-9.35026E-8	-1.48078E-6
ω	-7.13320E-8	2.42330E-7	1.19388E-5	-9.35026E-8	1.10468E-5	8.28503E-5
M	-6.12945E-7	2.20805E-6	1.08546E-4	-1.48078E-6	8.28503E-5	7.39895E-4

Date of computation: 2025-02-19 13:28 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

26.934

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

11 - 24*

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

Unit

Source

[1]

Unobserved

Value

593

Unit

Source

[1]

Normalized RMS of residuals

Value

0.447165

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-20.3409

Unit

Source

[2]

Last Observation

Value

2023-09-24.870925

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

21 (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

[-]

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 2023SE4 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	1953-04-04 09:45	> 1 mo	0.1390436	0.1240421	0.0219371
EARTH	1953-08-20 00:44	> 1 mo	0.1106507	0.0784941	0.0245352
EARTH	1953-11-18 09:56	> 1 mo	0.1584665	0.0697684	0.0402088
EARTH	1964-06-02 14:35	287.5	0.1924567	0.1871336	0.0017840
EARTH	1965-02-20 23:35	> 1 d	0.1870491	0.1816381	0.0018365
EARTH	1965-10-01 01:13	199.8	0.0278947	0.0079695	0.0079801
EARTH	1976-03-06 11:11	426.4	0.1775315	0.1773578	0.0000586
EARTH	1976-09-28 12:42	53.5	0.0158240	0.0147024	0.0003774
EARTH	1987-05-27 09:10	189.1	0.1241975	0.1189231	0.0018094
EARTH	1988-02-02 03:17	> 1 d	0.1971096	0.1966668	0.0001575
EARTH	1988-09-29 20:14	77.7	0.1027170	0.0932362	0.0031616
EARTH	1999-05-03 21:13	1233.1	0.1015750	0.0995935	0.0007286
EARTH	1999-12-28 23:55	> 1 d	0.1920038	0.1903862	0.0005405
EARTH	2011-03-23 08:03	> 1 d	0.1537813	0.1520350	0.0005978
EARTH	2011-09-06 20:42	1307.8	0.0877250	0.0834947	0.0014191
EARTH	2023-02-28 08:14	75.4	0.1793875	0.1790685	0.0001063
EARTH	2023-09-29 03:14	< 1 min	0.0136288	0.0136030	0.0000086
EARTH	2035-05-17 16:06	456.4	0.0922317	0.0903684	0.0007453
EARTH	2036-01-22 16:17	> 1 d	0.1957113	0.1952059	0.0001761
EARTH	2036-09-28 22:07	97.8	0.1117858	0.1031600	0.0028761
EARTH	2048-04-12 05:31	> 1 d	0.1197606	0.1146985	0.0018323
EARTH	2048-07-23 04:45	> 1 d	0.1260398	0.1252273	0.0003120
EARTH	2048-12-14 20:14	> 1 d	0.1801169	0.1766785	0.0011463
EARTH	2060-05-29 08:04	243.6	0.1938410	0.1836248	0.0034356
EARTH	2061-02-24 21:08	> 1 d	0.1775617	0.1748786	0.0009303
EARTH	2061-09-27 07:17	493.3	0.0223482	0.0133916	0.0031320
EARTH	2074-03-13 06:40	> 1 w	0.1564008	0.1370049	0.0119562
EARTH	2074-09-05 13:00	> 1 w	0.0905994	0.0415774	0.0252571
EARTH	2087-05-01 21:11	> 1 w	0.0916704	0.0875769	0.0124720
EARTH	2088-01-07 07:43	> 1 mo	0.1920481	0.1847767	0.0034494
EARTH	2088-09-26 21:31	> 1 d	0.1527776	0.0181912	0.0457321
EARTH	2100-05-23 11:47	> 1 d	0.1361995	0.0890150	0.0381258
EARTH	2101-02-12 08:44	> 1 mo	0.1848185	0.1752146	0.0079297
EARTH	2101-09-30 01:48	> 1 d	0.0151564	0.0076904	0.0415926
EARTH	2113-03-04 13:20	> 1 mo	0.1728468	0.1559826	0.2488368
EARTH	2113-09-25 17:18	> 1 mo	0.0356941	0.0097177	0.9080555
EARTH	2125-04-26 22:49	> 1 mo	0.1041076	0.0943248	0.7523132
EARTH	2125-12-28 13:03	> 1 mo	0.1892128	0.1401397	0.3211630

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
247.79919376	265.29758382	0.00749705	MINIMUM
96.82427202	129.02831009	0.08814533	MINIMUM
164.41763688	191.38118897	0.12711180	SADDLE
353.40684327	16.56585996	0.19589132	SADDLE
2.54663595	207.03403986	1.81847057	SADDLE
183.57285178	28.09907717	2.07888493	MAXIMUM

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MOID Plots

Click on the images to zoom-in and zoom-out