Asteroids

2023AB1 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.517

Aphelion (Q)

5.634

Eccentricity (e)

0.832

Inclination (i)

28.2

deg

Orbit period (P)

1969.6

Earth MOID

0.01546

U parameter

8.5

Next Earth close approach

Date

2050-01-27

Nominal distance (from Earth center)

0.14238

21300428

Maximum Brightness

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

21.3

mag

Diameter

150 - 300*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-01-13

Observatory

Moonbase South Observatory, Hakos

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

3.075069

1-sigma variation

0.018639

Unit

Eccentricity (e)

Value

0.832027

1-sigma variation

0.001111

Unit

Inclination (i)

Value

28.2056

1-sigma variation

0.0369

Unit

Long. of Ascending Node (Ω)

Value

121.8786

1-sigma variation

0.0050

Unit

Arg. of Perihelion (ω)

Value

90.4801

1-sigma variation

0.0105

Unit

Mean Anomaly (M)

Value

144.28735

1-sigma variation

1.30662

Unit

Perihelion distance

Value

0.516529

1-sigma variation

Unit

Aphelion distance

Value

5.633610

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.031494

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.075706

1-sigma variation

Unit

MOID

Value

0.015456

1-sigma variation

Unit

Orbit Period

Value

1969.6125

1-sigma variation

Unit

U parameter

Value

8.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.47428E-4	2.07081E-5	6.86895E-4	-9.31980E-5	-1.94836E-4	-2.43547E-2
e	2.07081E-5	1.23429E-6	4.09418E-5	-5.55499E-6	-1.16128E-5	-1.45164E-3
i	6.86895E-4	4.09418E-5	1.35806E-3	-1.84262E-4	-3.85178E-4	-4.81512E-2
Ω	-9.31980E-5	-5.55499E-6	-1.84262E-4	2.50008E-5	5.22601E-5	6.53316E-3
ω	-1.94836E-4	-1.16128E-5	-3.85178E-4	5.22601E-5	1.09347E-4	1.36580E-2
M	-2.43547E-2	-1.45164E-3	-4.81512E-2	6.53316E-3	1.36580E-2	1.70726E0

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

21.313

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

150 - 300*

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 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

837

Unit

Source

[1]

Normalized RMS of residuals

Value

0.591775

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-01-13.81568

Unit

Source

[2]

Last Observation

Value

2023-01-23.21168

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

133 (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 2023AB1 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	1958-07-23 11:49	> 1 mo	0.1338036	0.0231482	2.8573756
EARTH	2023-01-24 16:26	< 1 s	0.0733902	0.0731066	0.0000945
EARTH	2050-01-27 15:31	> 1 mo	0.1423846	0.0038916	2.0044570
EARTH	2066-07-17 04:35	> 1 mo	0.1818156	0.0645994	2.8998950
EARTH	2120-07-23 13:34	> 1 mo	0.0823170	0.0718414	1.2987919

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
325.15456865	18.28485867	0.01503396	MINIMUM
35.64574200	203.92975288	0.03771968	MINIMUM
0.70317802	111.20590580	0.60218291	SADDLE
0.93531791	292.11421033	1.46890700	SADDLE
180.08337335	290.78740382	4.79211724	SADDLE
180.12586981	110.80418632	6.54789543	MAXIMUM

Download:

MOID Plots

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