Asteroids

2023AN2 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Amor

Perihelion (q)

1.199

Aphelion (Q)

3.925

Eccentricity (e)

0.532

Inclination (i)

5.8

deg

Orbit period (P)

1497.5

Earth MOID

0.23318

U parameter

7.3

Next Earth close approach

Date

Nominal distance (from Earth center)

Maximum Brightness

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

20.1

mag

Diameter

250 - 600*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-01-15

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

2.561565

1-sigma variation

0.002216

Unit

Eccentricity (e)

Value

0.532101

1-sigma variation

0.000462

Unit

Inclination (i)

Value

5.7866

1-sigma variation

0.0069

Unit

Long. of Ascending Node (Ω)

Value

129.0884

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

268.9830

1-sigma variation

0.0240

Unit

Mean Anomaly (M)

Value

231.26646

1-sigma variation

0.28847

Unit

Perihelion distance

Value

1.198554

1-sigma variation

Unit

Aphelion distance

Value

3.924576

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.867774

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.805304

1-sigma variation

Unit

MOID

Value

0.233181

1-sigma variation

Unit

Orbit Period

Value

1497.4647

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.91155E-6	1.02455E-6	1.51418E-5	-2.11151E-7	-5.25845E-5	-6.39265E-4
e	1.02455E-6	2.13876E-7	3.14811E-6	-4.47886E-8	-1.09290E-5	-1.33391E-4
i	1.51418E-5	3.14811E-6	4.74817E-5	-6.13067E-7	-1.65209E-4	-1.96786E-3
Ω	-2.11151E-7	-4.47886E-8	-6.13067E-7	3.20537E-8	2.02900E-6	2.76851E-5
ω	-5.25845E-5	-1.09290E-5	-1.65209E-4	2.02900E-6	5.75791E-4	6.83240E-3
M	-6.39265E-4	-1.33391E-4	-1.96786E-3	2.76851E-5	6.83240E-3	8.32148E-2

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

20.13

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

250 - 600*

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

820

Unit

Source

[1]

Normalized RMS of residuals

Value

0.647102

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-01-15.409426

Unit

Source

[2]

Last Observation

Value

2023-02-13.169117

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

30 (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

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
358.61646180	294.41102200	0.23292771	MINIMUM
358.83492774	114.81663402	2.20171899	SADDLE
179.64982340	115.76787056	2.92443447	SADDLE
179.64224876	295.76698890	4.91261713	MAXIMUM

Download:

MOID Plots

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