Asteroids

2025SC24 help

Last update: 2025-10-01 02:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.642

Aphelion (Q)

1.548

Eccentricity (e)

0.414

Inclination (i)

14.0

deg

Orbit period (P)

418.3

Earth MOID

0.00393

U parameter

7.6

Next Earth close approach

Date

2025-10-06

Nominal distance (from Earth center)

0.03027

4529042

Maximum Brightness

20.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.4

mag

Diameter

22 - 50*

Taxonomic type

Rotation period (T)

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

1.094640

1-sigma variation

0.000398

Unit

Eccentricity (e)

Value

0.413737

1-sigma variation

0.000428

Unit

Inclination (i)

Value

13.9611

1-sigma variation

0.0166

Unit

Long. of Ascending Node (Ω)

Value

192.8062

1-sigma variation

0.0022

Unit

Arg. of Perihelion (ω)

Value

281.9380

1-sigma variation

0.0080

Unit

Mean Anomaly (M)

Value

344.04585

1-sigma variation

0.03409

Unit

Perihelion distance

Value

0.641746

1-sigma variation

Unit

Aphelion distance

Value

1.547533

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.165245

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.007964

1-sigma variation

Unit

MOID

Value

0.003933

1-sigma variation

Unit

Orbit Period

Value

418.3168

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.58073E-7	1.68560E-7	6.54944E-6	-8.59781E-7	-2.19694E-6	1.35459E-5
e	1.68560E-7	1.83515E-7	7.12505E-6	-8.98750E-7	-1.99113E-6	1.45161E-5
i	6.54944E-6	7.12505E-6	2.76663E-4	-3.49572E-5	-7.78678E-5	5.63920E-4
Ω	-8.59781E-7	-8.98750E-7	-3.49572E-5	4.77063E-6	1.36273E-5	-7.33381E-5
ω	-2.19694E-6	-1.99113E-6	-7.78678E-5	1.36273E-5	6.32904E-5	-1.81602E-4
M	1.35459E-5	1.45161E-5	5.63920E-4	-7.33381E-5	-1.81602E-4	1.16216E-3

Date of computation: 2025-10-01 02:15 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

25.401

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

[-]

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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

0.6

Unit

Source

[1]

Normalized RMS of residuals

Value

0.436065

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-29.245492

Unit

Source

[2]

Last Observation

Value

2025-10-01.073031

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

25 (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 2025SC24 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	1957-04-29 05:59	> 1 mo	0.1549364	0.0919408	9.6705245
EARTH	1970-09-29 09:50	> 1 mo	0.1393881	0.0070916	1.7367131
EARTH	1978-10-04 00:49	> 1 mo	0.0344976	0.0049815	9.6758215
EARTH	1986-10-05 19:56	> 1 mo	0.0086849	0.0046016	0.7988999
EARTH	1996-04-06 15:15	> 1 mo	0.1775932	0.1053222	0.5989006
EARTH	2004-04-25 01:27	> 1 mo	0.1087482	0.0896415	0.2870648
EARTH	2017-10-04 23:27	> 1 d	0.0104179	0.0039739	0.0234408
EARTH	2025-10-06 15:34	< 1 min	0.0302748	0.0301751	0.0000332
EARTH	2033-10-10 12:26	1048.0	0.1317016	0.0557434	0.0253460
EARTH	2043-04-05 18:55	> 1 w	0.1891610	0.1117904	0.0417615
EARTH	2051-04-17 09:06	> 1 d	0.1123384	0.0931145	0.0412847
EARTH	2059-04-24 14:36	> 1 d	0.0983456	0.0917689	0.0375695
EARTH	2067-05-01 08:07	> 1 w	0.1748808	0.0956208	0.1154639
EARTH	2080-09-30 18:09	> 1 w	0.1081807	0.0034854	0.1765015
EARTH	2088-10-04 22:59	> 1 d	0.0110944	0.0022643	0.1525281
EARTH	2096-09-30 23:13	> 1 mo	0.1048203	0.0031497	2.2965613
EARTH	2115-04-29 12:50	> 1 mo	0.1283731	0.0975151	4.1399775
EARTH	2123-04-22 17:20	> 1 mo	0.0979543	0.0958656	1.5271080

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
282.26875371	271.70909138	0.00393267	MINIMUM
72.56233515	109.40679887	0.09214414	MINIMUM
357.40905243	9.39710385	0.39148852	SADDLE
177.80626544	192.48183612	0.60840564	SADDLE
359.87966158	193.22686799	1.64826473	SADDLE
180.98718005	14.60565353	2.51458751	MAXIMUM

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MOID Plots

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