Asteroids

2026SX2 help

Last update: 2026-09-30 13:00 UTC

Orbital Properties

Epoch

61400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.793

Aphelion (Q)

1.290

Eccentricity (e)

0.238

Inclination (i)

7.0

deg

Orbit period (P)

388.3

Earth MOID

0.01043

U parameter

6.7

Next Earth close approach

Date

2029-04-05

Nominal distance (from Earth center)

0.05554

8309071

Maximum Brightness

24.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.2

mag

Diameter

10 - 22*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-19

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

1.041579

1-sigma variation

0.000092

Unit

Eccentricity (e)

Value

0.238384

1-sigma variation

0.000164

Unit

Inclination (i)

Value

6.9802

1-sigma variation

0.0056

Unit

Long. of Ascending Node (Ω)

Value

1.3227

1-sigma variation

0.0005

Unit

Arg. of Perihelion (ω)

Value

99.9181

1-sigma variation

0.0045

Unit

Mean Anomaly (M)

Value

13.51062

1-sigma variation

0.01216

Unit

Perihelion distance

Value

0.793284

1-sigma variation

Unit

Aphelion distance

Value

1.289875

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.022445

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.052130

1-sigma variation

Unit

MOID

Value

0.010433

1-sigma variation

Unit

Orbit Period

Value

388.2728

1-sigma variation

Unit

U parameter

Value

6.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.38950E-9	1.50550E-8	5.13747E-7	4.32477E-8	-4.11314E-7	1.11409E-6
e	1.50550E-8	2.70172E-8	9.21936E-7	7.76159E-8	-7.38037E-7	1.99926E-6
i	5.13747E-7	9.21936E-7	3.14607E-5	2.64842E-6	-2.51864E-5	6.82236E-5
Ω	4.32477E-8	7.76159E-8	2.64842E-6	2.23056E-7	-2.11974E-6	5.74330E-6
ω	-4.11314E-7	-7.38037E-7	-2.51864E-5	-2.11974E-6	2.01717E-5	-5.46191E-5
M	1.11409E-6	1.99926E-6	6.82236E-5	5.74330E-6	-5.46191E-5	1.47947E-4

Date of computation: 2026-09-30 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

27.189

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

10 - 22*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.482955

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-19.494049

Unit

Source

[2]

Last Observation

Value

2026-09-28.956241

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

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 2026SX2 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	1961-09-20 12:37	> 1 w	0.1881970	0.0077840	0.2931810
EARTH	1964-03-28 05:27	> 1 w	0.0411380	0.0221848	0.2575569
EARTH	1977-09-27 19:45	> 1 d	0.0178669	0.0090948	0.0196079
EARTH	1980-04-04 13:50	> 1 d	0.0616739	0.0245502	0.0276507
EARTH	1993-09-22 03:07	1440.0	0.1546881	0.0793026	0.0251619
EARTH	1996-03-26 01:06	> 1 d	0.0708254	0.0278925	0.0203999
EARTH	2010-09-30 08:13	564.1	0.0414457	0.0112387	0.0110236
EARTH	2013-04-09 03:07	716.3	0.1427413	0.1104958	0.0108069
EARTH	2026-09-28 18:10	< 1 min	0.0105443	0.0105206	0.0000079
EARTH	2029-04-05 03:55	105.3	0.0555427	0.0519238	0.0012189
EARTH	2043-09-19 04:47	> 1 d	0.1593789	0.1310208	0.0095140
EARTH	2043-10-30 23:09	> 1 d	0.1616716	0.1365398	0.0084408
EARTH	2045-02-24 07:04	> 1 d	0.1573939	0.1379764	0.0066684
EARTH	2059-09-26 16:58	719.1	0.0683188	0.0316711	0.0123925
EARTH	2062-04-01 10:25	1105.9	0.0306672	0.0273855	0.0041448
EARTH	2076-09-26 13:18	> 1 d	0.0505988	0.0107539	0.0376534
EARTH	2079-04-01 05:37	> 1 d	0.0375786	0.0292268	0.0155924
EARTH	2094-09-27 17:09	> 1 d	0.1312802	0.0903738	0.0137413
EARTH	2096-02-06 04:01	> 1 w	0.1900177	0.1675161	0.0077137
EARTH	2097-04-10 23:50	977.3	0.1452963	0.0825469	0.0214114
EARTH	2111-09-28 23:19	> 1 d	0.0328408	0.0105224	0.0396480
EARTH	2114-03-31 15:45	> 1 d	0.0537380	0.0386490	0.0062589

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
278.28887950	263.54950025	0.01043319	MINIMUM
77.09367546	88.19438185	0.02593454	MINIMUM
357.42543584	355.14676576	0.21784612	SADDLE
178.03695972	176.76563973	0.30742391	SADDLE
359.50107215	177.76161958	1.80504205	SADDLE
180.18491115	358.48406931	2.26916500	MAXIMUM

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MOID Plots

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