Asteroids

2026TO8 help

Last update: 2026-10-10 14:01 UTC

Orbital Properties

Epoch

61400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.934

Aphelion (Q)

2.673

Eccentricity (e)

0.482

Inclination (i)

2.0

deg

Orbit period (P)

884.6

Earth MOID

0.00009

U parameter

7.5

Next Earth close approach

Date

2056-01-02

Nominal distance (from Earth center)

0.09377

14028025

Maximum Brightness

25.1

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

7 - 17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-10-09

Observatory

University of Arizona Catalina Sky Survey

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

1.803480

1-sigma variation

0.001209

Unit

Eccentricity (e)

Value

0.482160

1-sigma variation

0.000364

Unit

Inclination (i)

Value

2.0451

1-sigma variation

0.0011

Unit

Long. of Ascending Node (Ω)

Value

19.7932

1-sigma variation

0.0006

Unit

Arg. of Perihelion (ω)

Value

36.1230

1-sigma variation

0.0016

Unit

Mean Anomaly (M)

Value

18.65140

1-sigma variation

0.01672

Unit

Perihelion distance

Value

0.933915

1-sigma variation

Unit

Aphelion distance

Value

2.673046

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.000465

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.264647

1-sigma variation

Unit

MOID

Value

0.000086

1-sigma variation

Unit

Orbit Period

Value

884.6380

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.46261E-6	4.39639E-7	1.35141E-6	7.02412E-7	-1.33686E-6	-2.02193E-5
e	4.39639E-7	1.32154E-7	4.06377E-7	2.10839E-7	-3.99259E-7	-6.07826E-6
i	1.35141E-6	4.06377E-7	1.25741E-6	6.33019E-7	-1.14413E-6	-1.87024E-5
Ω	7.02412E-7	2.10839E-7	6.33019E-7	3.67080E-7	-8.08513E-7	-9.67330E-6
ω	-1.33686E-6	-3.99259E-7	-1.14413E-6	-8.08513E-7	2.58207E-6	1.81582E-5
M	-2.02193E-5	-6.07826E-6	-1.87024E-5	-9.67330E-6	1.81582E-5	2.79592E-4

Date of computation: 2026-10-10 14:01 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

27.749

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

7 - 17*

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

0.603081

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-10-08.367429

Unit

Source

[2]

Last Observation

Value

2026-10-09.969288

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

27 (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 2026TO8 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	1956-01-05 17:02	> 1 w	0.1449916	0.0341623	0.1156767
MARS	1967-11-19 13:37	1418.9	0.0236869	0.0044057	0.0194610
EARTH	1977-12-25 05:37	> 1 w	0.0485949	0.0325998	0.0503800
MARS	1992-05-03 19:32	> 1 d	0.0416999	0.0042760	0.1208012
EARTH	2000-01-09 16:21	> 1 w	0.1931284	0.0347881	0.1410551
EARTH	2004-09-21 00:26	> 1 w	0.1861755	0.0051655	0.1279233
EARTH	2026-10-11 02:40	< 1 min	0.0088415	0.0088236	0.0000060
MARS	2044-03-02 08:14	> 1 d	0.0229210	0.0155178	0.0563439
EARTH	2056-01-02 17:49	> 1 w	0.0937716	0.0334685	0.1411633
EARTH	2072-11-26 13:50	> 1 w	0.0555005	0.0453589	0.0056847
EARTH	2089-10-06 01:51	> 1 w	0.0410548	0.0001202	0.1061379
MARS	2092-01-09 13:45	> 1 d	0.0200491	0.0056684	0.0306493
MARS	2108-12-15 14:08	> 1 w	0.0402459	0.0059953	0.4880291
EARTH	2118-11-12 10:24	> 1 mo	0.0560035	0.0286436	0.1267268

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
338.03084293	277.50205694	0.00008646	MINIMUM
18.92865809	344.68839086	0.03262108	MINIMUM
359.87680681	313.43472979	0.05796729	SADDLE
179.57853701	132.44255600	1.66359224	SADDLE
358.69552988	131.47442990	1.94352671	SADDLE
179.53250529	312.42062642	3.66122273	MAXIMUM

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MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2026TO8

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2043-10-13.454	67535.454	3.123	0.000	0.27 ± 0.001	4.43E3	2.21E-6	3.29E-2	-6.58	0
2065-10-12.872	75570.872	3.273	0.000	1.16 ± 0.002	1.25E5	3.44E-8	3.30E-2	-8.73	0


Based on 27 optical observations (of which 1 are rejected as outliers) from 2026/10/08.367 to 2026/10/09.969.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.63 and 1.63 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20261010 143757.802 UTC.

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