Asteroids

2022HF1 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.639

Aphelion (Q)

2.256

Eccentricity (e)

0.558

Inclination (i)

7.3

deg

Orbit period (P)

636.3

Earth MOID

0.01685

U parameter

7.5

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.447827

1-sigma variation

0.000560

Unit

Eccentricity (e)

Value

0.558485

1-sigma variation

0.000247

Unit

Inclination (i)

Value

7.2829

1-sigma variation

0.0032

Unit

Long. of Ascending Node (Ω)

Value

55.0136

1-sigma variation

0.0017

Unit

Arg. of Perihelion (ω)

Value

262.6378

1-sigma variation

0.0003

Unit

Mean Anomaly (M)

Value

94.34933

1-sigma variation

0.48044

Unit

Perihelion distance

Value

0.639237

1-sigma variation

Unit

Aphelion distance

Value

2.256417

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.083539

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.080907

1-sigma variation

Unit

MOID

Value

0.016848

1-sigma variation

Unit

Orbit Period

Value

636.3170

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.13046E-7	1.38054E-7	1.76531E-6	-9.33780E-7	1.52185E-7	-2.68811E-4
e	1.38054E-7	6.08818E-8	7.78503E-7	-4.11794E-7	6.71240E-8	-1.18546E-4
i	1.76531E-6	7.78503E-7	9.95501E-6	-5.26603E-6	8.58478E-7	-1.51586E-3
Ω	-9.33780E-7	-4.11794E-7	-5.26603E-6	2.78608E-6	-4.54111E-7	8.01833E-4
ω	1.52185E-7	6.71240E-8	8.58478E-7	-4.54111E-7	7.58012E-8	-1.30680E-4
M	-2.68811E-4	-1.18546E-4	-1.51586E-3	8.01833E-4	-1.30680E-4	2.30827E-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

23.861

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

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

1423

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

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 2022HF1 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
VENUS	1952-12-15 14:29	> 1 mo	0.0444633	0.0293399	0.4986528
EARTH	1975-05-11 06:22	> 1 d	0.0636361	0.0211738	0.0953733
EARTH	1980-11-12 11:02	> 1 w	0.0607061	0.0178546	0.2516286
EARTH	1982-04-29 02:37	> 1 w	0.1605373	0.0221386	0.2693439
EARTH	1987-10-30 06:23	> 1 w	0.1654267	0.0132295	0.2893214
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	0.0346582	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

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
55.85965021	306.96634438	0.01695929	MINIMUM
303.07815681	124.53954137	0.01915798	MINIMUM
359.16309551	215.61409719	0.38907581	SADDLE
179.76472405	35.89268990	1.28339817	SADDLE
358.82445724	34.93224039	1.62282625	SADDLE
179.55492852	215.77362717	3.26561300	MAXIMUM

Download:

MOID Plots

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