Asteroids

2025SJ22 help

Last update: 2025-10-20 13:32 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.012

Aphelion (Q)

2.745

Eccentricity (e)

0.461

Inclination (i)

10.4

deg

Orbit period (P)

940.4

Earth MOID

0.02677

U parameter

7.3

Next Earth close approach

Date

2043-11-01

Nominal distance (from Earth center)

0.13287

19877028

Maximum Brightness

23.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.4

mag

Diameter

22 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-09-29

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

1.878555

1-sigma variation

0.001000

Unit

Eccentricity (e)

Value

0.461172

1-sigma variation

0.000282

Unit

Inclination (i)

Value

10.3956

1-sigma variation

0.0046

Unit

Long. of Ascending Node (Ω)

Value

187.7555

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

199.6328

1-sigma variation

0.0012

Unit

Mean Anomaly (M)

Value

12.63288

1-sigma variation

0.00920

Unit

Perihelion distance

Value

1.012218

1-sigma variation

Unit

Aphelion distance

Value

2.744892

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.615367

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.029502

1-sigma variation

Unit

MOID

Value

0.026770

1-sigma variation

Unit

Orbit Period

Value

940.4470

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.99279E-7	2.81553E-7	4.56411E-6	-4.38032E-7	-1.17091E-6	-9.19689E-6
e	2.81553E-7	7.93295E-8	1.28597E-6	-1.23418E-7	-3.29906E-7	-2.59128E-6
i	4.56411E-6	1.28597E-6	2.08468E-5	-2.00080E-6	-5.34849E-6	-4.20057E-5
Ω	-4.38032E-7	-1.23418E-7	-2.00080E-6	1.92052E-7	5.13445E-7	4.03136E-6
ω	-1.17091E-6	-3.29906E-7	-5.34849E-6	5.13445E-7	1.37707E-6	1.07747E-5
M	-9.19689E-6	-2.59128E-6	-4.20057E-5	4.03136E-6	1.07747E-5	8.46443E-5

Date of computation: 2025-10-20 13:32 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

25.446

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

22 - 50*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.60658

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-29.298219

Unit

Source

[2]

Last Observation

Value

2025-10-14.311179

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

67 (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

[-]

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 2025SJ22 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	1958-10-15 08:51	> 1 w	0.0594711	0.0117608	0.0442275
EARTH	2007-09-29 06:19	> 1 w	0.0431386	0.0243503	0.0631829
EARTH	2025-10-05 23:52	< 1 min	0.0285846	0.0285403	0.0000147
EARTH	2043-11-01 22:55	> 1 w	0.1328697	0.0413352	0.0719294
EARTH	2092-09-21 11:41	> 1 w	0.0923757	0.0138321	0.1265732
EARTH	2110-10-06 02:52	> 1 w	0.0284518	0.0283839	0.0030545

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
349.99400292	270.59118027	0.02676991	MINIMUM
179.99437186	105.43322149	1.74242897	SADDLE
358.70608703	104.63799830	2.01664699	SADDLE
179.04478890	284.86616893	3.73972802	MAXIMUM

Download:

MOID Plots

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