Asteroids

2022HF1

Last update: 2022-05-24 13:10 UTC

Orbital Properties

Epoch

59800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.639

Aphelion (Q)

2.257

Eccentricity (e)

0.559

Inclination (i)

7.3

deg

Orbit period (P)

636.5

Earth MOID

0.01722

U parameter

7.5

Next Earth close approach

Date

2027-11-12

Nominal distance (from Earth center)

0.04288

6414245

Maximum Brightness

20.1

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

23.9

mag

Diameter

60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-04-23

Observatory

Pan-STARRS 2, Haleakala

Orbit Visualiser

Click the button to start Orbit Visualiser

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion
Aphelion
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

59800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.448145

1-sigma variation

0.000634

Unit

Eccentricity (e)

Value

0.558564

1-sigma variation

0.000271

Unit

Inclination (i)

Value

7.2836

1-sigma variation

0.0031

Unit

Ascending Node (Ω)

Value

55.0541

1-sigma variation

3.222E-5

Unit

Arg. of Perihelion (ω)

Value

262.6358

1-sigma variation

0.0007

Unit

Mean Anomaly (M)

Value

22.30965

1-sigma variation

0.00804

Unit

Perihelion

Value

0.639264

1-sigma variation

Unit

Aphelion

Value

2.257026

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.085470

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.080828

1-sigma variation

Unit

MOID

Value

0.017222

1-sigma variation

Unit

Orbit Period

Value

636.5265

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.02121E-7	1.72147E-7	1.98831E-6	-6.83381E-9	-4.50300E-7	-5.09701E-6
e	1.72147E-7	7.36955E-8	8.51190E-7	-2.92123E-9	-1.92759E-7	-2.18201E-6
i	1.98831E-6	8.51190E-7	9.83157E-6	-3.41838E-8	-2.22618E-6	-2.52025E-5
Ω	-6.83381E-9	-2.92123E-9	-3.41838E-8	1.03817E-9	7.41255E-9	8.66208E-8
ω	-4.50300E-7	-1.92759E-7	-2.22618E-6	7.41255E-9	5.06470E-7	5.70771E-6
M	-5.09701E-6	-2.18201E-6	-2.52025E-5	8.66208E-8	5.70771E-6	6.46061E-5

Date of computation: 2022-05-18 11:58 UTC

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

23.89

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

60*

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 ODIM	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

0.57349

Unit

arcsec

Source

[1]

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

168 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for OrbFit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2122

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1975-05-11 01:24	> 1 d	0.0616492	0.0205880	0.0119490
EARTH	1980-11-10 15:50	> 1 w	0.0285081	0.0182103	0.1210167
EARTH	1982-04-27 04:57	> 1 w	0.1988199	0.0200374	0.1685050
VENUS	2013-11-06 23:12	> 1 d	0.0303764	0.0285984	0.0128684
EARTH	2022-05-08 11:49	< 1 s	0.0225315	0.0224994	0.0000107
EARTH	2027-11-12 14:31	> 1 d	0.0428766	0.0166781	0.0189844
EARTH	2029-04-28 23:04	> 1 d	0.1668414	0.0688456	0.0230721
EARTH	2034-11-03 03:57	> 1 d	0.1189642	0.0165432	0.0284284
EARTH	2076-05-12 02:28	> 1 d	0.0743767	0.0168417	0.0189500
EARTH	2081-11-16 10:54	1439.6	0.1222731	0.0151962	0.0209245
EARTH	2083-05-03 19:18	> 1 d	0.0877258	0.0166492	0.0188264
EARTH	2088-11-07 18:59	1168.1	0.0445514	0.0149252	0.0130558
VENUS	2107-10-25 17:05	> 1 d	0.0472995	0.0435114	0.0160510
VENUS	2118-04-06 11:27	> 1 w	0.0482650	0.0436597	0.0509648

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