Asteroids

2022SC9 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.588

Aphelion (Q)

1.765

Eccentricity (e)

0.500

Inclination (i)

10.4

deg

Orbit period (P)

466.1

Earth MOID

0.02493

U parameter

8.2

Next Earth close approach

Date

2033-04-10

Nominal distance (from Earth center)

0.19543

29235479

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.6

mag

Diameter

30 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-09-23

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.176545

1-sigma variation

0.000957

Unit

Eccentricity (e)

Value

0.499990

1-sigma variation

0.000772

Unit

Inclination (i)

Value

10.4426

1-sigma variation

0.0175

Unit

Long. of Ascending Node (Ω)

Value

196.1346

1-sigma variation

0.0021

Unit

Arg. of Perihelion (ω)

Value

275.4034

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

119.20855

1-sigma variation

0.99083

Unit

Perihelion distance

Value

0.588285

1-sigma variation

Unit

Aphelion distance

Value

1.764806

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.159220

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.073140

1-sigma variation

Unit

MOID

Value

0.024928

1-sigma variation

Unit

Orbit Period

Value

466.1347

1-sigma variation

Unit

U parameter

Value

8.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.15179E-7	7.38522E-7	1.67066E-5	-2.00163E-6	-2.75815E-7	-9.47878E-4
e	7.38522E-7	5.95989E-7	1.34816E-5	-1.61383E-6	-2.21241E-7	-7.64908E-4
i	1.67066E-5	1.34816E-5	3.04983E-4	-3.65535E-5	-5.03843E-6	-1.73035E-2
Ω	-2.00163E-6	-1.61383E-6	-3.65535E-5	4.47057E-6	6.72366E-7	2.07317E-3
ω	-2.75815E-7	-2.21241E-7	-5.03843E-6	6.72366E-7	1.63193E-7	2.85694E-4
M	-9.47878E-4	-7.64908E-4	-1.73035E-2	2.07317E-3	2.85694E-4	9.81745E-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

24.605

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

30 - 70*

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

1115

Unit

Source

[1]

Normalized RMS of residuals

Value

0.728375

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-09-23.313051

Unit

Source

[2]

Last Observation

Value

2022-09-29.76699

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

33 (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 2022SC9 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	1959-04-21 14:30	649.9	0.0684367	0.0526254	0.0074083
EARTH	1971-09-30 22:56	> 1 d	0.0383671	0.0265547	0.1018128
EARTH	1973-05-01 13:50	> 1 d	0.1691448	0.0596277	0.1406014
EARTH	1985-10-08 07:22	> 1 w	0.1292324	0.0283890	0.1766188
EARTH	1996-04-15 15:46	> 1 w	0.1405549	0.0603209	0.1343166
EARTH	2008-09-24 15:40	> 1 d	0.1514733	0.0272263	0.0871964
EARTH	2010-04-26 02:03	> 1 d	0.0710209	0.0578466	0.0491373
EARTH	2022-10-03 11:46	< 1 min	0.0339977	0.0338237	0.0000580
EARTH	2033-04-10 16:46	> 1 d	0.1954271	0.0699106	0.0687349
EARTH	2045-09-25 09:17	> 1 d	0.1465438	0.0260279	0.1397631
EARTH	2047-04-27 02:17	> 1 w	0.0798081	0.0584954	0.0986001
EARTH	2059-10-07 02:40	> 1 d	0.0905392	0.0246131	0.0982004
EARTH	2070-04-18 05:58	> 1 d	0.1162906	0.0767180	0.0154590
EARTH	2082-09-30 09:57	> 1 d	0.0530400	0.0232847	0.0654666
EARTH	2084-05-01 08:02	> 1 d	0.1603524	0.0623252	0.0743011
EARTH	2096-10-11 17:23	> 1 d	0.1817140	0.0288867	0.1076216
EARTH	2107-04-23 19:07	> 1 d	0.0683314	0.0599915	0.0470604
EARTH	2119-10-03 18:41	> 1 d	0.0231401	0.0222544	0.0256843
EARTH	2121-05-04 16:12	> 1 d	0.1958685	0.0658288	0.1376001

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
288.22986749	267.54684717	0.02472627	MINIMUM
71.12027688	110.28330234	0.05779693	MINIMUM
359.71193018	8.64387038	0.41891290	SADDLE
179.74408784	189.32878739	0.78695565	SADDLE
0.26075995	189.57582182	1.59822061	SADDLE
180.26788029	9.63615054	2.73821315	MAXIMUM

Download:

MOID Plots

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