Asteroids

2026SC help

Last update: 2026-09-26 13:00 UTC

Orbital Properties

Epoch

61400.0

MJD

Orbit type

Aten

Perihelion (q)

0.567

Aphelion (Q)

1.104

Eccentricity (e)

0.321

Inclination (i)

4.4

deg

Orbit period (P)

278.9

Earth MOID

0.00395

U parameter

6.4

Next Earth close approach

Date

2029-07-17

Nominal distance (from Earth center)

0.07861

11759428

Maximum Brightness

23.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

13 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-16

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

61400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.835440

1-sigma variation

0.000033

Unit

Eccentricity (e)

Value

0.321092

1-sigma variation

0.000091

Unit

Inclination (i)

Value

4.4028

1-sigma variation

0.0019

Unit

Long. of Ascending Node (Ω)

Value

179.6655

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

324.8051

1-sigma variation

0.0016

Unit

Mean Anomaly (M)

Value

2.99344

1-sigma variation

0.01343

Unit

Perihelion distance

Value

0.567186

1-sigma variation

Unit

Aphelion distance

Value

1.103693

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.401663

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.013193

1-sigma variation

Unit

MOID

Value

0.003949

1-sigma variation

Unit

Orbit Period

Value

278.9146

1-sigma variation

Unit

U parameter

Value

6.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.09381E-9	-2.99503E-9	-6.37639E-8	-9.48030E-9	-5.41473E-8	-4.44176E-7
e	-2.99503E-9	8.20099E-9	1.74598E-7	2.59590E-8	1.48252E-7	1.21625E-6
i	-6.37639E-8	1.74598E-7	3.71731E-6	5.52653E-7	3.15640E-6	2.58937E-5
Ω	-9.48030E-9	2.59590E-8	5.52653E-7	8.21877E-8	4.69244E-7	3.84988E-6
ω	-5.41473E-8	1.48252E-7	3.15640E-6	4.69244E-7	2.68153E-6	2.19855E-5
M	-4.44176E-7	1.21625E-6	2.58937E-5	3.84988E-6	2.19855E-5	1.80379E-4

Date of computation: 2026-09-26 13:00 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

26.489

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

13 - 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

[-]

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

0.463777

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

2026-09-24.985245

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

75 (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
EARTH	1952-07-21 04:57	> 1 mo	0.0923692	0.0802810	0.1420604
EARTH	1962-09-20 09:38	> 1 mo	0.0435092	0.0033332	0.5856255
VENUS	1962-11-17 14:53	> 1 mo	0.0426873	0.0412193	0.2426827
EARTH	1965-07-09 18:20	> 1 d	0.1127871	0.0889418	0.4356755
EARTH	1972-09-24 23:42	> 1 w	0.1645247	0.0026559	0.6311506
EARTH	1975-08-13 13:57	> 1 mo	0.1062869	0.1058165	0.0110996
VENUS	1985-04-23 12:48	837.0	0.0250616	0.0171653	0.0435610
EARTH	1985-09-25 20:11	> 1 d	0.0036383	0.0024496	0.0192650
EARTH	1988-08-12 03:49	> 1 w	0.1014045	0.1002450	0.0012007
EARTH	1991-07-12 11:38	8.4	0.1089609	0.0797074	0.0136001
VENUS	1998-03-25 11:03	893.3	0.0265402	0.0236993	0.0037867
VENUS	2004-02-06 00:01	307.8	0.0387929	0.0382437	0.0008964
EARTH	2004-09-27 02:00	14.9	0.0709842	0.0578692	0.0043738
EARTH	2007-09-02 15:28	> 1 d	0.0888299	0.0842584	0.0015334
EARTH	2010-07-15 21:27	470.0	0.0767938	0.0767785	0.0000584
EARTH	2026-09-25 13:46	< 1 s	0.0043792	0.0043749	0.0000015
EARTH	2029-07-17 19:09	268.2	0.0786069	0.0776131	0.0003454
EARTH	2039-09-27 04:55	99.2	0.1176549	0.1057880	0.0039562
VENUS	2040-01-20 11:37	752.0	0.0493017	0.0357965	0.0047178
EARTH	2042-08-20 13:57	> 1 d	0.1010418	0.1002133	0.0002885
EARTH	2045-07-11 01:34	76.6	0.1419202	0.1337087	0.0027715
VENUS	2049-01-02 12:40	164.8	0.0368794	0.0361343	0.0005334
EARTH	2055-09-25 11:09	269.9	0.0060307	0.0041966	0.0015765
EARTH	2058-07-10 03:09	4.3	0.0787567	0.0714261	0.0025258
VENUS	2065-04-15 14:43	63.4	0.0318012	0.0297127	0.0007017
EARTH	2065-09-26 20:07	69.9	0.1217161	0.1177216	0.0013316
VENUS	2068-05-12 10:53	293.2	0.0227121	0.0210210	0.0008918
EARTH	2068-07-19 21:40	867.6	0.0841295	0.0792468	0.0016290
VENUS	2071-06-10 18:09	569.0	0.0338110	0.0226546	0.0046822
EARTH	2075-09-28 09:31	127.6	0.0901492	0.0694367	0.0069078
EARTH	2078-07-11 09:23	533.9	0.0706344	0.0690166	0.0009748
EARTH	2085-09-25 08:42	463.2	0.0177298	0.0093833	0.0032034
EARTH	2088-07-09 21:12	41.5	0.1719817	0.1612295	0.0035850
VENUS	2095-02-23 14:26	1265.1	0.0384609	0.0368080	0.0057953
EARTH	2095-08-02 06:33	> 1 d	0.1010815	0.0930819	0.0035944
EARTH	2102-09-29 02:49	1168.7	0.0346283	0.0084186	0.0386407
EARTH	2105-07-10 04:30	426.9	0.1007131	0.0695175	0.0144546
EARTH	2112-09-09 02:24	> 1 w	0.0844054	0.0358309	0.0177181
VENUS	2116-12-14 08:50	> 1 w	0.0431526	0.0182197	0.0694656
VENUS	2120-01-16 00:29	> 1 d	0.0231059	0.0178963	0.0505699
EARTH	2122-08-01 21:55	> 1 w	0.0998436	0.0845831	0.0166634

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
231.36532857	260.44035579	0.00394935	MINIMUM
133.53525344	187.47636879	0.07331638	MINIMUM
176.26335909	219.44201474	0.10439023	SADDLE
2.16119797	43.51047230	0.42143390	SADDLE
3.07392162	224.73193447	1.57750900	SADDLE
181.86620086	43.48554545	2.09061209	MAXIMUM

Download:

MOID Plots

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