Asteroids

2022SP4 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.997

Aphelion (Q)

1.587

Eccentricity (e)

0.228

Inclination (i)

23.7

deg

Orbit period (P)

536.4

Earth MOID

0.03923

U parameter

7.6

Next Earth close approach

Date

2044-10-04

Nominal distance (from Earth center)

0.17884

26754589

Maximum Brightness

23.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.3

mag

Diameter

40 - 80*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-09-20

Observatory

Pan-STARRS 1, 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

1.292056

1-sigma variation

0.000527

Unit

Eccentricity (e)

Value

0.228210

1-sigma variation

0.000290

Unit

Inclination (i)

Value

23.6869

1-sigma variation

0.0164

Unit

Long. of Ascending Node (Ω)

Value

3.4850

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

40.4848

1-sigma variation

0.0231

Unit

Mean Anomaly (M)

Value

27.20388

1-sigma variation

0.44442

Unit

Perihelion distance

Value

0.997196

1-sigma variation

Unit

Aphelion distance

Value

1.586916

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.040711

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.483789

1-sigma variation

Unit

MOID

Value

0.039228

1-sigma variation

Unit

Orbit Period

Value

536.4392

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.77692E-7	1.52742E-7	8.61878E-6	1.76332E-7	-1.21637E-5	-2.34192E-4
e	1.52742E-7	8.40150E-8	4.74070E-6	9.69906E-8	-6.69056E-6	-1.28816E-4
i	8.61878E-6	4.74070E-6	2.67503E-4	5.47286E-6	-3.77527E-4	-7.26866E-3
Ω	1.76332E-7	9.69906E-8	5.47286E-6	1.11981E-7	-7.72368E-6	-1.48710E-4
ω	-1.21637E-5	-6.69056E-6	-3.77527E-4	-7.72368E-6	5.32815E-4	1.02583E-2
M	-2.34192E-4	-1.28816E-4	-7.26866E-3	-1.48710E-4	1.02583E-2	1.97506E-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

24.28

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 - 80*

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

1076

Unit

Source

[1]

Normalized RMS of residuals

Value

0.588829

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-09-18.490964

Unit

Source

[2]

Last Observation

Value

2022-10-06.76269

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

79 (1)

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 2022SP4 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	1950-09-30 03:23	> 1 d	0.0644182	0.0384848	0.1374061
EARTH	1975-09-26 21:33	> 1 d	0.0536423	0.0388062	0.0932317
EARTH	1997-10-04 07:17	> 1 d	0.1681272	0.0320613	0.0909424
EARTH	2022-09-27 23:32	< 1 s	0.0399123	0.0398219	0.0000301
EARTH	2044-10-04 14:15	> 1 d	0.1788434	0.0311671	0.0825042
EARTH	2069-09-27 05:39	> 1 d	0.0451562	0.0395546	0.0656374
EARTH	2091-10-02 08:02	> 1 w	0.1007256	0.0373958	0.3821686
EARTH	2116-09-23 11:23	> 1 w	0.1389826	0.0352915	0.4226286

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
328.64647747	263.49589391	0.03990662	MINIMUM
91.72890175	48.35929974	0.40672973	MINIMUM
51.05974813	4.89789502	0.43536545	SADDLE
208.40066877	141.91763920	0.70650331	SADDLE
7.39167874	129.30565283	1.98547384	SADDLE
170.53946892	291.39490247	2.56208061	MAXIMUM

Download:

MOID Plots

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