Asteroids

2023FH7 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.982

Aphelion (Q)

3.296

Eccentricity (e)

0.541

Inclination (i)

2.0

deg

Orbit period (P)

1142.8

Earth MOID

0.00049

U parameter

7.1

Next Earth close approach

Date

2048-05-01

Nominal distance (from Earth center)

0.0323

4831295

Maximum Brightness

28.8

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

28.7

mag

Diameter

5 - 11*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-03-28

Observatory

Mt. Lemmon Survey

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

2.139169

1-sigma variation

0.001019

Unit

Eccentricity (e)

Value

0.540913

1-sigma variation

0.000223

Unit

Inclination (i)

Value

1.9553

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

191.2515

1-sigma variation

0.0011

Unit

Arg. of Perihelion (ω)

Value

17.1203

1-sigma variation

0.0005

Unit

Mean Anomaly (M)

Value

236.78976

1-sigma variation

0.16909

Unit

Perihelion distance

Value

0.982064

1-sigma variation

Unit

Aphelion distance

Value

3.296273

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.001848

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

2.132739

1-sigma variation

Unit

MOID

Value

0.000491

1-sigma variation

Unit

Orbit Period

Value

1142.7887

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.03745E-6	2.27540E-7	-3.22489E-7	1.08770E-6	-4.08303E-7	-1.72227E-4
e	2.27540E-7	4.99055E-8	-7.07229E-8	2.38544E-7	-8.95296E-8	-3.77740E-5
i	-3.22489E-7	-7.07229E-8	1.08571E-7	-3.55976E-7	1.49981E-7	5.35354E-5
Ω	1.08770E-6	2.38544E-7	-3.55976E-7	1.17897E-6	-4.77780E-7	-1.80566E-4
ω	-4.08303E-7	-8.95296E-8	1.49981E-7	-4.77780E-7	2.26108E-7	6.77791E-5
M	-1.72227E-4	-3.77740E-5	5.35354E-5	-1.80566E-4	6.77791E-5	2.85915E-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

28.734

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

5 - 11*

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

775

Unit

Source

[1]

Normalized RMS of residuals

Value

0.60303

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-03-28.154114

Unit

Source

[2]

Last Observation

Value

2023-03-30.072251

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

29 (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 2023FH7 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	1978-03-20 17:31	> 1 mo	0.0362907	0.0021447	0.8290324
EARTH	1994-05-14 00:03	> 1 w	0.0146142	0.0116432	0.0453012
EARTH	2023-03-30 18:07	< 1 min	0.0011055	0.0011042	0.0000004
EARTH	2048-05-01 23:04	> 1 mo	0.0322952	0.0275373	0.0179056
EARTH	2073-03-17 20:59	566.9	0.0608466	0.0523434	0.0028389

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
349.76620075	86.89828048	0.00095765	MINIMUM
11.88305598	127.34262761	0.02205410	MINIMUM
2.98844886	111.05939013	0.02740087	SADDLE
1.47344280	288.27781733	1.97450162	SADDLE
180.44902563	287.04214354	2.30169276	SADDLE
180.43390407	107.03672873	4.30064799	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2023FH7

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS	TS
2073-04-01.024	78298.024	-0.634	0.000	0.17 ± 0.003	1.23E4	8.84E-5	6.38E-7	-5.93	0
2076-03-31.159	79393.159	0.266	0.000	0.05 ± 1.432	2.25E8	3.57E-9	2.59E-11	-10.35	0


Based on 29 optical observations (of which 0 are rejected as outliers) from 2023/03/28.154 to 2023/03/30.072.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.68 and 1.68 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250305 085751.888 UTC.

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Download Impactor Table as: