Asteroids

2025SC help

Last update: 2026-07-30 14:25 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.903

Aphelion (Q)

1.107

Eccentricity (e)

0.101

Inclination (i)

3.0

deg

Orbit period (P)

368.0

Earth MOID

0.00241

U parameter

4.2

Next Earth close approach

Date

2026-09-14

Nominal distance (from Earth center)

0.04923

7364577

Maximum Brightness

26.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

2.7 - 6*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-09-16

Observatory

JPL SynTrack Robotic Telescope, Auberry

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.005017

1-sigma variation

0.000002

Unit

Eccentricity (e)

Value

0.101177

1-sigma variation

0.000012

Unit

Inclination (i)

Value

2.9788

1-sigma variation

0.0007

Unit

Long. of Ascending Node (Ω)

Value

171.8973

1-sigma variation

0.0006

Unit

Arg. of Perihelion (ω)

Value

279.1743

1-sigma variation

0.0014

Unit

Mean Anomaly (M)

Value

173.62808

1-sigma variation

0.00019

Unit

Perihelion distance

Value

0.903333

1-sigma variation

Unit

Aphelion distance

Value

1.106702

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.014572

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.004671

1-sigma variation

Unit

MOID

Value

0.002406

1-sigma variation

Unit

Orbit Period

Value

368.0093

1-sigma variation

Unit

U parameter

Value

4.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.75113E-12	-1.98873E-11	-1.22204E-9	-1.11075E-9	-2.71180E-9	7.85974E-11
e	-1.98873E-11	1.34878E-10	7.92932E-9	7.27975E-9	1.53763E-8	6.11249E-10
i	-1.22204E-9	7.92932E-9	4.70151E-7	4.30754E-7	9.32493E-7	2.48458E-8
Ω	-1.11075E-9	7.27975E-9	4.30754E-7	3.94858E-7	8.50076E-7	2.51694E-8
ω	-2.71180E-9	1.53763E-8	9.32493E-7	8.50076E-7	1.99443E-6	-2.18933E-8
M	7.85974E-11	6.11249E-10	2.48458E-8	2.51694E-8	-2.18933E-8	3.76142E-8

Date of computation: 2026-07-30 14:25 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

29.988

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

2.7 - 6*

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

327

Unit

Source

[1]

Normalized RMS of residuals

Value

0.93475

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-16.289721

Unit

Source

[2]

Last Observation

Value

2025-09-18.277921

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

19 (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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2025SC from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1958-04-25 04:17	176.6	0.1698762	0.1624067	0.0024922
EARTH	1959-04-17 07:06	316.8	0.0695434	0.0636817	0.0019758
EARTH	1960-03-30 00:34	892.8	0.0380574	0.0359908	0.0007450
EARTH	1961-02-04 05:23	> 1 d	0.0919904	0.0911061	0.0002999
EARTH	1961-07-20 04:51	1100.1	0.0891810	0.0888906	0.0000978
EARTH	1961-12-09 02:09	1337.9	0.1007619	0.1003468	0.0001384
EARTH	1962-09-20 10:02	9.2	0.0219921	0.0219220	0.0000233
EARTH	1963-09-20 23:35	13.7	0.0380127	0.0363338	0.0005598
EARTH	1964-09-16 19:42	21.1	0.1275435	0.1257025	0.0006137
EARTH	2020-04-17 18:05	9.8	0.1377112	0.1374039	0.0001024
EARTH	2021-04-10 14:04	18.6	0.0535885	0.0533098	0.0000930
EARTH	2022-03-28 04:48	45.5	0.0344417	0.0342901	0.0000507
EARTH	2023-02-12 11:37	115.7	0.0832149	0.0830883	0.0000422
EARTH	2023-06-21 06:50	112.7	0.0938486	0.0937869	0.0000206
EARTH	2023-12-28 20:27	108.3	0.1030501	0.1030024	0.0000159
EARTH	2024-08-21 18:33	30.3	0.0694710	0.0694513	0.0000066
EARTH	2025-09-18 03:40	< 1 min	0.0031082	0.0031070	0.0000004
EARTH	2026-09-14 03:55	8.8	0.0492292	0.0491752	0.0000180
EARTH	2027-07-27 07:01	87.0	0.0922678	0.0922467	0.0000070
EARTH	2027-11-23 10:30	96.6	0.0878592	0.0878443	0.0000050
EARTH	2028-06-22 01:28	121.0	0.1072701	0.1072338	0.0000121
EARTH	2028-12-30 22:33	127.6	0.0901690	0.0900893	0.0000266
EARTH	2029-05-19 16:43	150.5	0.1005672	0.1004615	0.0000352
EARTH	2030-02-15 01:02	117.6	0.0635531	0.0633401	0.0000710
EARTH	2031-03-14 01:09	1.8	0.0113859	0.0111718	0.0000714
EARTH	2032-03-12 06:16	6.2	0.0318390	0.0306318	0.0004025
EARTH	2033-02-03 10:00	996.4	0.0745603	0.0735537	0.0003361
EARTH	2033-04-13 13:36	849.6	0.0724015	0.0714680	0.0003114
EARTH	2033-12-29 17:58	1153.1	0.0970100	0.0966571	0.0001177
EARTH	2034-05-17 22:28	965.4	0.0925739	0.0923141	0.0000866
EARTH	2034-12-01 14:08	1103.9	0.1027919	0.1027040	0.0000294
EARTH	2035-06-16 12:09	974.0	0.0942724	0.0940184	0.0000847
EARTH	2035-11-04 04:21	1034.2	0.0946903	0.0942238	0.0001559
EARTH	2036-07-22 21:17	836.2	0.0766233	0.0757363	0.0002958
EARTH	2036-10-01 23:02	792.8	0.0716174	0.0707204	0.0002999
EARTH	2037-08-30 23:18	123.9	0.0341009	0.0331521	0.0003173
EARTH	2038-08-25 23:46	21.7	0.0147938	0.0147230	0.0000240
EARTH	2039-08-23 11:42	17.3	0.0234121	0.0232779	0.0000448
EARTH	2040-08-18 03:32	9.5	0.0845271	0.0845009	0.0000087
EARTH	2041-08-14 02:43	5.2	0.1592399	0.1591168	0.0000410
EARTH	2106-03-18 04:39	105.1	0.1596992	0.1515075	0.0027307
EARTH	2107-03-14 12:27	130.1	0.0823708	0.0747100	0.0025542
EARTH	2108-03-10 09:03	134.3	0.0167780	0.0113431	0.0018511
EARTH	2109-03-10 10:08	524.4	0.0202373	0.0046276	0.0060835
EARTH	2110-03-13 21:54	277.8	0.0826504	0.0710929	0.0038535
EARTH	2111-03-17 22:24	633.3	0.1574705	0.1178793	0.0132003

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
268.92141953	250.68237957	0.00240553	MINIMUM
82.37745070	73.90568868	0.00770152	MINIMUM
355.38627488	341.89221329	0.09431134	SADDLE
175.91849654	162.72782412	0.10567512	SADDLE
356.92862501	163.58127156	1.91898353	SADDLE
177.85600302	344.51431649	2.09003370	MAXIMUM

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MOID Plots

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