Asteroids

2022HF1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.639

Aphelion (Q)

2.256

Eccentricity (e)

0.559

Inclination (i)

7.3

deg

Orbit period (P)

636.3

Earth MOID

0.01696

U parameter

7.4

Next Earth close approach

Date

2027-11-12

Nominal distance (from Earth center)

0.03973

5943349

Maximum Brightness

19.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.9

mag

Diameter

40 - 100*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-04-23

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

1.447766

1-sigma variation

0.000564

Unit

Eccentricity (e)

Value

0.558517

1-sigma variation

0.000247

Unit

Inclination (i)

Value

7.2835

1-sigma variation

0.0031

Unit

Long. of Ascending Node (Ω)

Value

55.0174

1-sigma variation

0.0017

Unit

Arg. of Perihelion (ω)

Value

262.6261

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

341.19801

1-sigma variation

0.41483

Unit

Perihelion distance

Value

0.639164

1-sigma variation

Unit

Aphelion distance

Value

2.256367

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.084075

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.082945

1-sigma variation

Unit

MOID

Value

0.016959

1-sigma variation

Unit

Orbit Period

Value

636.2764

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.17974E-7	1.39549E-7	1.77522E-6	-9.75829E-7	2.38863E-7	-2.33921E-4
e	1.39549E-7	6.12439E-8	7.79087E-7	-4.28258E-7	1.04840E-7	-1.02661E-4
i	1.77522E-6	7.79087E-7	9.91101E-6	-5.44826E-6	1.33383E-6	-1.30596E-3
Ω	-9.75829E-7	-4.28258E-7	-5.44826E-6	2.99544E-6	-7.33205E-7	7.17880E-4
ω	2.38863E-7	1.04840E-7	1.33383E-6	-7.33205E-7	1.81250E-7	-1.75722E-4
M	-2.33921E-4	-1.02661E-4	-1.30596E-3	7.17880E-4	-1.75722E-4	1.72087E-1

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

23.861

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

40 - 100*

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

1228

Unit

Source

[1]

Normalized RMS of residuals

Value

0.596472

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-04-23.565197

Unit

Source

[2]

Last Observation

Value

2022-05-08.899459

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

171 (3)

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 2022HF1 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
VENUS	1952-12-15 14:29	> 1 mo	0.0444633	0.0293399	0.4986525
EARTH	1975-05-11 06:22	> 1 d	0.0636361	0.0211738	0.0953732
EARTH	1980-11-12 11:02	> 1 w	0.0607061	0.0178546	0.2516285
EARTH	1982-04-29 02:37	> 1 w	0.1605373	0.0221386	0.2693437
EARTH	1987-10-30 06:23	> 1 w	0.1654267	0.0132295	0.2893213
VENUS	2013-11-07 16:06	> 1 d	0.0288495	0.0285835	0.0048435
EARTH	2022-05-08 11:48	< 1 s	0.0225297	0.0224997	0.0000100
EARTH	2027-11-12 10:16	1422.1	0.0397288	0.0165815	0.0175378
EARTH	2029-04-28 18:38	1398.6	0.1706674	0.1069542	0.0213341
EARTH	2034-11-02 19:35	> 1 d	0.1235919	0.0484409	0.0253209
EARTH	2076-05-12 07:55	> 1 d	0.0774937	0.0286301	0.0172457
EARTH	2081-11-16 14:58	1311.6	0.1257252	0.0686043	0.0191428
EARTH	2083-05-03 23:27	1366.5	0.0846220	0.0346583	0.0171954
EARTH	2088-11-07 22:11	1063.3	0.0424034	0.0148319	0.0118579
VENUS	2107-10-24 20:01	> 1 d	0.0450221	0.0435050	0.0102685

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
55.85532546	305.99729195	0.01697016	MINIMUM
303.20673660	123.80680884	0.01877125	MINIMUM
359.26053578	214.80283722	0.38757993	SADDLE
179.79281540	35.00158976	1.28350205	SADDLE
358.92050238	34.12211285	1.62262454	SADDLE
179.58521597	214.88451652	3.26396984	MAXIMUM

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MOID Plots

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