Asteroids

2023FZ3 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.684

Aphelion (Q)

4.089

Eccentricity (e)

0.713

Inclination (i)

5.0

deg

Orbit period (P)

1346.4

Earth MOID

0.00049

U parameter

7.7

Next Earth close approach

Date

2078-09-14

Nominal distance (from Earth center)

0.0966

14451859

Maximum Brightness

22.2

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

24.4

mag

Diameter

30 - 80*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-03-25

Observatory

Pan-STARRS 1, 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.386296

1-sigma variation

0.003010

Unit

Eccentricity (e)

Value

0.713389

1-sigma variation

0.000365

Unit

Inclination (i)

Value

5.0131

1-sigma variation

0.0004

Unit

Long. of Ascending Node (Ω)

Value

192.5504

1-sigma variation

0.0874

Unit

Arg. of Perihelion (ω)

Value

76.3649

1-sigma variation

0.0908

Unit

Mean Anomaly (M)

Value

295.73192

1-sigma variation

0.57226

Unit

Perihelion distance

Value

0.683939

1-sigma variation

Unit

Aphelion distance

Value

4.088654

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.003452

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.409000

1-sigma variation

Unit

MOID

Value

0.000489

1-sigma variation

Unit

Orbit Period

Value

1346.4338

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.06161E-6	1.09829E-6	1.16043E-6	-2.62963E-4	2.73451E-4	-1.72266E-3
e	1.09829E-6	1.33115E-7	1.40648E-7	-3.18716E-5	3.31428E-5	-2.08790E-4
i	1.16043E-6	1.40648E-7	1.48740E-7	-3.36753E-5	3.50187E-5	-2.20605E-4
Ω	-2.62963E-4	-3.18716E-5	-3.36753E-5	7.63105E-3	-7.93539E-3	4.99907E-2
ω	2.73451E-4	3.31428E-5	3.50187E-5	-7.93539E-3	8.25189E-3	-5.19845E-2
M	-1.72266E-3	-2.08790E-4	-2.20605E-4	4.99907E-2	-5.19845E-2	3.27487E-1

Date of computation: 2026-03-17 23:26 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

24.411

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

30 - 80*

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

1131

Unit

Source

[1]

Normalized RMS of residuals

Value

0.602666

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-03-18.37898

Unit

Source

[2]

Last Observation

Value

2023-04-04.173297

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

51 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2023FZ3 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1953-08-26 11:45	> 1 w	0.1593150	0.0559955	0.1056061
EARTH	1964-09-02 09:48	> 1 w	0.0884309	0.0585056	0.2256130
EARTH	1979-03-25 23:04	> 1 w	0.1254601	0.0110457	0.5250146
EARTH	1990-03-26 23:31	> 1 w	0.0909091	0.0116168	0.4771904
VENUS	1997-08-19 05:58	> 1 mo	0.0276627	0.0209582	0.1382317
EARTH	2023-04-06 02:56	< 1 s	0.0280410	0.0279967	0.0000148
EARTH	2078-09-14 10:43	> 1 w	0.0966047	0.0314524	0.4575687
EARTH	2093-03-23 21:43	> 1 w	0.1707143	0.0095077	0.3530338
EARTH	2104-03-28 22:35	> 1 w	0.0836923	0.0099080	0.1660367
EARTH	2115-04-01 05:51	> 1 w	0.0482825	0.0114963	0.1365782

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
324.47970167	90.39057734	0.00053118	MINIMUM
36.17055450	245.79404206	0.04012436	MINIMUM
0.57678004	168.62758903	0.34155488	SADDLE
0.34766109	348.06100855	1.66613702	SADDLE
180.08227046	347.58880505	3.11388166	SADDLE
180.03182500	167.56996737	5.10801952	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2023FZ3

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2034-04-02.940	64054.940	-4.092	0.000	0.11 ± 0.002	2.81E3	7.50E-8	7.51E0	-5.87	0


Based on 51 optical observations (of which 0 are rejected as outliers) from 2023/03/18.379 to 2023/04/04.173.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.15 and 1.15 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250805 130500.123 UTC.

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Download Impactor Table as: