Asteroids

2023AM1 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.937

Aphelion (Q)

1.331

Eccentricity (e)

0.174

Inclination (i)

6.4

deg

Orbit period (P)

440.9

Earth MOID

0.02679

U parameter

7.0

Next Earth close approach

Date

2029-06-08

Nominal distance (from Earth center)

0.08719

13043143

Maximum Brightness

23.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-01-14

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.133613

1-sigma variation

0.000164

Unit

Eccentricity (e)

Value

0.173834

1-sigma variation

0.000149

Unit

Inclination (i)

Value

6.3822

1-sigma variation

0.0051

Unit

Long. of Ascending Node (Ω)

Value

294.8761

1-sigma variation

0.0010

Unit

Arg. of Perihelion (ω)

Value

246.8655

1-sigma variation

0.0007

Unit

Mean Anomaly (M)

Value

80.77373

1-sigma variation

0.17031

Unit

Perihelion distance

Value

0.936553

1-sigma variation

Unit

Aphelion distance

Value

1.330674

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.162368

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.044998

1-sigma variation

Unit

MOID

Value

0.026791

1-sigma variation

Unit

Orbit Period

Value

440.8551

1-sigma variation

Unit

U parameter

Value

7.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.68739E-8	2.44973E-8	8.41031E-7	1.69710E-7	-6.47084E-8	-2.79194E-5
e	2.44973E-8	2.23333E-8	7.66686E-7	1.54711E-7	-5.81608E-8	-2.54509E-5
i	8.41031E-7	7.66686E-7	2.63216E-5	5.31146E-6	-2.01351E-6	-8.73759E-4
Ω	1.69710E-7	1.54711E-7	5.31146E-6	1.07185E-6	-4.05320E-7	-1.76315E-4
ω	-6.47084E-8	-5.81608E-8	-2.01351E-6	-4.05320E-7	4.49426E-7	6.70577E-5
M	-2.79194E-5	-2.54509E-5	-8.73759E-4	-1.76315E-4	6.70577E-5	2.90057E-2

Date of computation: 2025-09-10 00:30 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

26.463

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

14 - 30*

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

974

Unit

Source

[1]

Normalized RMS of residuals

Value

0.457827

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-01-14.553648

Unit

Source

[2]

Last Observation

Value

2023-01-23.19542

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

39 (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 2023AM1 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	1965-01-17 01:38	1029.9	0.1663364	0.1055047	0.0203693
EARTH	1971-01-29 08:02	> 1 d	0.0433276	0.0248967	0.0128817
EARTH	1971-07-11 11:01	> 1 w	0.1957538	0.1703684	0.0090282
EARTH	1977-06-07 17:40	307.1	0.0899598	0.0842891	0.0023748
EARTH	1994-01-16 05:12	929.6	0.1941248	0.1359595	0.0194352
EARTH	2000-02-06 19:41	> 1 d	0.0839253	0.0166189	0.0238438
EARTH	2000-06-30 18:38	> 1 w	0.1680324	0.1261847	0.0167635
EARTH	2006-06-10 19:38	920.6	0.1509615	0.1024867	0.0181856
EARTH	2023-01-25 19:53	< 1 min	0.0295038	0.0294331	0.0000236
EARTH	2029-06-08 02:02	363.4	0.0871880	0.0810468	0.0030571
EARTH	2052-01-19 16:25	> 1 d	0.1355213	0.0241239	0.0424297
EARTH	2058-02-08 19:12	> 1 w	0.0894490	0.0088774	0.0349132
EARTH	2058-06-30 21:41	> 1 w	0.1656624	0.1111349	0.0250435
EARTH	2064-06-09 06:02	1022.2	0.1094498	0.0815758	0.0130796
EARTH	2081-01-16 13:26	> 1 d	0.1885093	0.0698742	0.0400301
EARTH	2087-02-03 18:21	> 1 w	0.0766538	0.0196728	0.0515491
EARTH	2087-07-04 01:11	> 1 w	0.1743258	0.1151670	0.0358371
EARTH	2093-06-10 10:47	> 1 d	0.1316445	0.0787279	0.0368028
EARTH	2110-01-24 04:01	479.4	0.0637390	0.0489949	0.0051178
EARTH	2116-01-02 09:18	> 1 w	0.1881543	0.1420958	0.0160402
EARTH	2116-06-10 13:46	> 1 d	0.0986783	0.0791182	0.0115272
EARTH	2122-06-15 01:21	> 1 d	0.1963502	0.1068393	0.0326689

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
312.11928763	23.28630031	0.02679972	MINIMUM
65.47397422	154.20862629	0.08026094	MINIMUM
14.69439250	95.94388008	0.12263686	SADDLE
187.26467229	266.20119052	0.35029812	SADDLE
6.23497019	265.83051206	1.93581191	SADDLE
183.39978337	82.93339973	2.32497434	MAXIMUM

Download:

MOID Plots

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