Asteroids

2022PA1 help

Last update: 2024-04-25 23:56 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.535

Aphelion (Q)

1.762

Eccentricity (e)

0.534

Inclination (i)

4.0

deg

Orbit period (P)

449.5

Earth MOID

0.00449

U parameter

8.0

Next Earth close approach

Date

2035-03-24

Nominal distance (from Earth center)

0.14538

21748041

Maximum Brightness

25.7

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

13 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-08-06

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)
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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.148412

1-sigma variation

0.000714

Unit

Eccentricity (e)

Value

0.534251

1-sigma variation

0.000604

Unit

Inclination (i)

Value

3.9827

1-sigma variation

0.0062

Unit

Long. of Ascending Node (Ω)

Value

133.9157

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

294.4980

1-sigma variation

0.0007

Unit

Mean Anomaly (M)

Value

71.57529

1-sigma variation

0.37342

Unit

Perihelion distance

Value

0.534872

1-sigma variation

Unit

Aphelion distance

Value

1.761951

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.313550

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.040623

1-sigma variation

Unit

MOID

Value

0.004489

1-sigma variation

Unit

Orbit Period

Value

449.5156

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.09808E-7	4.31296E-7	4.44314E-6	2.96062E-7	3.38376E-7	-2.66622E-4
e	4.31296E-7	3.64899E-7	3.75990E-6	2.50531E-7	2.88777E-7	-2.25560E-4
i	4.44314E-6	3.75990E-6	3.87752E-5	2.58364E-6	3.05846E-6	-2.32367E-3
Ω	2.96062E-7	2.50531E-7	2.58364E-6	1.72288E-7	2.03155E-7	-1.54834E-4
ω	3.38376E-7	2.88777E-7	3.05846E-6	2.03155E-7	4.91654E-7	-1.76908E-4
M	-2.66622E-4	-2.25560E-4	-2.32367E-3	-1.54834E-4	-1.76908E-4	1.39439E-1

Date of computation: 2024-04-23 10:08 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

26.495

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

13 - 30*

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
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

626

Unit

Source

[1]

Normalized RMS of residuals

Value

0.50798

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-08-06.360311

Unit

Source

[2]

Last Observation

Value

2022-08-08.969843

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

[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 2022PA1 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1957-08-11 04:09	> 1 d	0.0351697	0.0034306	0.0356302
EARTH	1970-03-14 01:27	> 1 d	0.1014358	0.0480089	0.1347883
EARTH	1981-03-24 09:44	> 1 w	0.1572733	0.0489923	0.2747810
EARTH	1984-08-06 22:04	> 1 w	0.0644382	0.0037625	0.3159611
EARTH	1995-08-16 08:30	> 1 d	0.1519424	0.0034754	0.2227779
EARTH	2008-03-18 07:25	> 1 d	0.0500186	0.0485224	0.0206677
EARTH	2022-08-10 16:01	< 1 min	0.0068106	0.0067835	0.0000090
EARTH	2035-03-24 09:32	> 1 d	0.1453767	0.0479838	0.0652205
EARTH	2038-08-09 23:41	> 1 d	0.0145439	0.0046475	0.0837083
EARTH	2051-03-14 16:16	> 1 mo	0.1059835	0.0481616	0.7462553
EARTH	2062-03-25 04:55	> 1 mo	0.1563002	0.0485448	1.3815994
EARTH	2065-08-07 11:42	> 1 mo	0.0689931	0.0047924	1.5532943
EARTH	2076-08-15 16:32	> 1 w	0.1377759	0.0047454	0.9456960
EARTH	2089-03-21 00:41	> 1 w	0.0744652	0.0487371	0.2257818
EARTH	2092-08-06 16:45	> 1 w	0.0938156	0.0054337	0.5183567
EARTH	2105-03-27 18:42	> 1 d	0.1882828	0.0440320	0.1203654
EARTH	2108-08-16 04:41	> 1 w	0.1010357	0.0053810	0.3768366

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