Asteroids

2026SC help

Last update: 2026-09-17 04:45 UTC

Orbital Properties

Epoch

61400.0

MJD

Orbit type

Aten

Perihelion (q)

0.566

Aphelion (Q)

1.104

Eccentricity (e)

0.322

Inclination (i)

4.4

deg

Orbit period (P)

278.8

Earth MOID

0.00395

U parameter

7.7

Next Earth close approach

Date

2026-09-25

Nominal distance (from Earth center)

0.00437

654317

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.2

mag

Diameter

15 - 30*

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

61400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.835147

1-sigma variation

0.000231

Unit

Eccentricity (e)

Value

0.321823

1-sigma variation

0.000584

Unit

Inclination (i)

Value

4.4144

1-sigma variation

0.0100

Unit

Long. of Ascending Node (Ω)

Value

179.6576

1-sigma variation

0.0058

Unit

Arg. of Perihelion (ω)

Value

324.8181

1-sigma variation

0.0107

Unit

Mean Anomaly (M)

Value

3.12045

1-sigma variation

0.09830

Unit

Perihelion distance

Value

0.566378

1-sigma variation

Unit

Aphelion distance

Value

1.103917

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.402479

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.013184

1-sigma variation

Unit

MOID

Value

0.003946

1-sigma variation

Unit

Orbit Period

Value

278.7681

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.33146E-8	-1.34679E-7	-2.26050E-6	1.07373E-6	-2.46662E-6	-2.26870E-5
e	-1.34679E-7	3.40882E-7	5.75970E-6	-2.62442E-6	6.24089E-6	5.72537E-5
i	-2.26050E-6	5.75970E-6	9.96492E-5	-3.88233E-5	1.05563E-4	9.57139E-4
Ω	1.07373E-6	-2.62442E-6	-3.88233E-5	3.37569E-5	-4.79846E-5	-4.65616E-4
ω	-2.46662E-6	6.24089E-6	1.05563E-4	-4.79846E-5	1.14672E-4	1.04769E-3
M	-2.26870E-5	5.72537E-5	9.57139E-4	-4.65616E-4	1.04769E-3	9.66209E-3

Date of computation: 2026-09-17 04:45 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

26.223

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

15 - 30*

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

0.4

Unit

Source

[1]

Normalized RMS of residuals

Value

0.449406

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-14.36347

Unit

Source

[2]

Last Observation

Value

2026-09-16.94659

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

14 (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

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 2026SC 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
VENUS	1958-07-28 18:17	> 1 w	0.0379364	0.0376720	0.0405300
EARTH	1960-09-26 02:51	385.0	0.1408636	0.1040783	0.0122708
EARTH	1963-09-23 13:25	> 1 mo	0.0255841	0.0025736	0.3495140
EARTH	1966-08-07 22:35	> 1 mo	0.1002387	0.0949873	0.0443663
EARTH	1969-07-12 00:33	> 1 d	0.1121600	0.0779032	0.2138657
VENUS	1975-06-19 08:27	> 1 w	0.0378194	0.0246334	0.1268208
EARTH	1982-09-26 08:05	> 1 d	0.1458006	0.0050821	0.1088122
EARTH	1985-09-21 10:50	> 1 w	0.0351454	0.0038807	0.1576112
EARTH	1988-08-01 15:16	> 1 mo	0.0965727	0.0868905	0.0355016
EARTH	1991-07-12 13:16	> 1 d	0.1350599	0.0790239	0.1068022
VENUS	1998-03-26 17:39	> 1 d	0.0247310	0.0235570	0.0100142
EARTH	2004-09-26 17:43	854.9	0.0330285	0.0037873	0.0262823
EARTH	2007-08-24 03:30	> 1 w	0.0988943	0.0863368	0.0048554
EARTH	2010-07-13 12:15	> 1 d	0.0811855	0.0768423	0.0073829
EARTH	2023-09-25 05:51	256.2	0.1985789	0.1768443	0.0072455
EARTH	2026-09-25 13:22	17.8	0.0043738	0.0043545	0.0000064
EARTH	2029-07-19 15:22	> 1 d	0.0817052	0.0757212	0.0025781
EARTH	2039-09-26 10:37	831.3	0.1517033	0.0743320	0.0258153
EARTH	2042-08-29 05:42	> 1 w	0.0954414	0.0773238	0.0065607
EARTH	2045-07-10 15:15	263.1	0.1165997	0.0764048	0.0188143
EARTH	2055-09-26 13:11	481.0	0.0113941	0.0040489	0.0043162
EARTH	2058-08-12 08:21	> 1 w	0.1002476	0.1001420	0.0000400
EARTH	2061-07-11 15:35	326.0	0.1088898	0.0709240	0.0388041
EARTH	2074-09-27 01:35	> 1 d	0.0278605	0.0049319	0.1143556
EARTH	2077-08-23 11:59	> 1 d	0.0975715	0.0828707	0.0050394
EARTH	2080-07-13 11:07	> 1 w	0.0732907	0.0713226	0.0295449
VENUS	2081-11-25 04:17	> 1 w	0.0237175	0.0228215	0.0694906
VENUS	2087-10-07 21:23	> 1 mo	0.0436827	0.0356071	0.6724999
EARTH	2093-09-26 04:06	> 1 mo	0.1548641	0.0084563	1.9566202
EARTH	2096-09-18 19:26	> 1 mo	0.0468476	0.0088775	1.5949734
EARTH	2099-07-27 06:17	> 1 mo	0.0872913	0.0756178	0.5127129
EARTH	2102-07-13 20:23	> 1 w	0.1537478	0.0724053	0.9887918
EARTH	2115-09-28 12:12	> 1 mo	0.0376700	0.0064341	1.6729729
EARTH	2118-08-29 10:25	> 1 mo	0.0936432	0.0658495	0.2329875
EARTH	2121-07-16 02:57	> 1 d	0.0707369	0.0705617	0.0088753
VENUS	2123-06-14 09:18	> 1 w	0.0444882	0.0351691	0.2780486

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
231.37236879	260.42215461	0.00394550	MINIMUM
133.52140905	187.49760697	0.07349664	MINIMUM
176.25822215	219.44593383	0.10464347	SADDLE
2.15697423	43.51090891	0.42224454	SADDLE
3.06937896	224.73287219	1.57669869	SADDLE
181.86227151	43.48700414	2.09083363	MAXIMUM

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MOID Plots

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