Asteroids

2026TY3 help

Last update: 2026-10-07 04:15 UTC

Orbital Properties

Epoch

61400.0

MJD

Orbit type

Aten

Perihelion (q)

0.812

Aphelion (Q)

1.056

Eccentricity (e)

0.130

Inclination (i)

17.0

deg

Orbit period (P)

329.8

Earth MOID

0.03857

U parameter

7.6

Next Earth close approach

Date

2035-09-26

Nominal distance (from Earth center)

0.18049

27000823

Maximum Brightness

26.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.5

mag

Diameter

8 - 19*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-10-06

Observatory

Kitt Peak-Bok

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

0.934264

1-sigma variation

0.000265

Unit

Eccentricity (e)

Value

0.130466

1-sigma variation

0.000312

Unit

Inclination (i)

Value

17.0345

1-sigma variation

0.1171

Unit

Long. of Ascending Node (Ω)

Value

12.0097

1-sigma variation

0.0031

Unit

Arg. of Perihelion (ω)

Value

152.4009

1-sigma variation

0.2271

Unit

Mean Anomaly (M)

Value

303.41569

1-sigma variation

0.26270

Unit

Perihelion distance

Value

0.812374

1-sigma variation

Unit

Aphelion distance

Value

1.056154

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.039285

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.175446

1-sigma variation

Unit

MOID

Value

0.038571

1-sigma variation

Unit

Orbit Period

Value

329.8396

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.03087E-8	7.40210E-8	2.71994E-5	-7.45620E-7	-6.01284E-5	6.95957E-5
e	7.40210E-8	9.70649E-8	3.64206E-5	-9.79845E-7	-6.20579E-5	7.29100E-5
i	2.71994E-5	3.64206E-5	1.37190E-2	-3.68397E-4	-2.27079E-2	2.67189E-2
Ω	-7.45620E-7	-9.79845E-7	-3.68397E-4	9.90744E-6	6.23899E-4	-7.33043E-4
ω	-6.01284E-5	-6.20579E-5	-2.27079E-2	6.23899E-4	5.15771E-2	-5.96343E-2
M	6.95957E-5	7.29100E-5	2.67189E-2	-7.33043E-4	-5.96343E-2	6.90118E-2

Date of computation: 2026-10-07 04:15 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

27.518

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

8 - 19*

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

0.8

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.321425

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-10-06.31882

Unit

Source

[2]

Last Observation

Value

2026-10-07.133051

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 2026TY3 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	1952-03-21 23:00	> 1 d	0.1885847	0.1846114	0.0030921
EARTH	1961-04-20 09:16	> 1 d	0.1866566	0.1838437	0.0017419
EARTH	1961-10-07 16:23	459.1	0.0448375	0.0375192	0.0047986
EARTH	1970-09-29 09:52	> 1 d	0.1361705	0.0607576	0.0339905
EARTH	1980-03-19 16:37	> 1 w	0.1933983	0.1836462	0.0200927
EARTH	1989-04-16 02:22	> 1 w	0.1805991	0.1775029	0.0133381
EARTH	1989-10-08 16:17	> 1 d	0.0648359	0.0396713	0.0590699
EARTH	1998-10-02 14:04	> 1 d	0.0910554	0.0460413	0.0564890
EARTH	2017-04-03 13:39	> 1 d	0.1755260	0.1748742	0.0014341
EARTH	2017-10-10 15:28	300.0	0.1424039	0.0820718	0.0212639
EARTH	2026-10-06 09:16	14.0	0.0395879	0.0388002	0.0002626
EARTH	2035-09-26 04:23	> 1 d	0.1804894	0.1233512	0.0199574
EARTH	2045-03-28 00:32	> 1 w	0.1806411	0.1773740	0.0073530
EARTH	2045-10-11 04:12	477.2	0.1825316	0.0708301	0.0419871
EARTH	2054-04-23 15:33	> 1 w	0.1929342	0.1835443	0.0159055
EARTH	2054-10-07 05:35	> 1 d	0.0384392	0.0374817	0.0094006
EARTH	2063-09-28 16:34	> 1 w	0.1479718	0.0620659	0.1343558
EARTH	2073-03-19 16:06	> 1 mo	0.1943245	0.1850411	0.0713715
EARTH	2082-04-14 14:38	> 1 mo	0.1791199	0.1767402	0.0488616
EARTH	2082-10-09 07:44	> 1 w	0.0755465	0.0414557	0.2803140
EARTH	2091-10-03 09:54	> 1 w	0.0820284	0.0438182	0.2736404
EARTH	2110-04-05 11:31	> 1 w	0.1755333	0.1751239	0.0016897
EARTH	2110-10-11 21:25	> 1 d	0.1375555	0.0498510	0.0993986
EARTH	2119-10-07 02:39	> 1 d	0.0443012	0.0382739	0.0227161

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
212.89055262	271.29344338	0.03857054	MINIMUM
28.96598288	92.95026398	0.17406782	MINIMUM
111.41685749	179.71266629	0.29748736	SADDLE
309.37804972	4.94961744	0.29865248	SADDLE
358.15944038	239.46502068	1.81464888	SADDLE
191.34480634	72.96039515	2.04603044	MAXIMUM

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MOID Plots

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