Asteroids

2026TS3 help

Last update: 2026-10-07 14:31 UTC

Orbital Properties

Epoch

61400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.671

Aphelion (Q)

1.369

Eccentricity (e)

0.342

Inclination (i)

5.4

deg

Orbit period (P)

376.2

Earth MOID

0.00014

U parameter

6.9

Next Earth close approach

Date

2026-10-12

Nominal distance (from Earth center)

0.03102

4639783

Maximum Brightness

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

25.7

mag

Diameter

19 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-10-06

Observatory

Pan-STARRS 1, 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

1.019958

1-sigma variation

0.000119

Unit

Eccentricity (e)

Value

0.341811

1-sigma variation

0.000308

Unit

Inclination (i)

Value

5.4139

1-sigma variation

0.0057

Unit

Long. of Ascending Node (Ω)

Value

18.4032

1-sigma variation

0.0019

Unit

Arg. of Perihelion (ω)

Value

106.5093

1-sigma variation

0.0043

Unit

Mean Anomaly (M)

Value

3.12913

1-sigma variation

0.02104

Unit

Perihelion distance

Value

0.671325

1-sigma variation

Unit

Aphelion distance

Value

1.368591

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.000535

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.179498

1-sigma variation

Unit

MOID

Value

0.000140

1-sigma variation

Unit

Orbit Period

Value

376.2459

1-sigma variation

Unit

U parameter

Value

6.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.41451E-8	3.63374E-8	6.77668E-7	-2.21801E-7	4.20026E-7	2.49631E-6
e	3.63374E-8	9.45951E-8	1.76336E-6	-5.69733E-7	1.16683E-6	6.46225E-6
i	6.77668E-7	1.76336E-6	3.28743E-5	-1.06286E-5	2.17095E-5	1.20486E-4
Ω	-2.21801E-7	-5.69733E-7	-1.06286E-5	3.48317E-6	-6.58710E-6	-3.91419E-5
ω	4.20026E-7	1.16683E-6	2.17095E-5	-6.58710E-6	1.86581E-5	7.76071E-5
M	2.49631E-6	6.46225E-6	1.20486E-4	-3.91419E-5	7.76071E-5	4.42509E-4

Date of computation: 2026-10-07 14:31 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

25.746

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

19 - 40*

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

0.772269

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-10-03.41998

Unit

Source

[2]

Last Observation

Value

2026-10-07.247326

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

12 (2)

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 2026TS3 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	1950-10-03 22:21	> 1 d	0.1874223	0.0051178	0.1055189
EARTH	1951-10-10 09:12	> 1 d	0.0366519	0.0024836	0.1114878
EARTH	1952-10-12 18:25	> 1 d	0.1063332	0.0019675	0.0845022
EARTH	1960-05-06 22:38	> 1 d	0.1187381	0.0549364	0.1043234
EARTH	1961-05-14 09:07	> 1 d	0.0670320	0.0534360	0.0863594
EARTH	1962-05-21 17:54	> 1 d	0.1994052	0.0549779	0.1560273
EARTH	1990-10-06 05:01	336.7	0.1474149	0.1304647	0.0056501
EARTH	1991-10-12 23:22	1036.7	0.0216836	0.0008316	0.0218389
EARTH	1992-09-29 23:27	> 1 d	0.1991141	0.1438107	0.0184734
EARTH	1998-05-06 14:49	> 1 d	0.1215740	0.0604457	0.0243667
EARTH	1999-05-15 22:36	> 1 d	0.0896591	0.0533732	0.0217570
EARTH	2025-10-06 04:03	66.3	0.1424514	0.1391017	0.0011166
EARTH	2026-10-12 23:37	< 1 min	0.0310150	0.0309221	0.0000310
VENUS	2030-02-14 04:43	699.2	0.0123574	0.0068326	0.0025814
EARTH	2033-05-10 00:52	252.4	0.0636204	0.0568820	0.0024979
EARTH	2034-05-20 01:10	342.5	0.1775897	0.1603640	0.0057847
VENUS	2055-12-18 17:51	> 1 d	0.0201650	0.0077341	0.0503534
EARTH	2057-10-13 06:36	> 1 d	0.0214046	0.0003519	0.0204834
EARTH	2063-05-11 05:31	> 1 d	0.0532175	0.0515331	0.0307287
VENUS	2072-07-27 08:05	> 1 mo	0.0138397	0.0071304	0.3577253
EARTH	2083-10-13 09:53	> 1 mo	0.0037331	0.0020236	3.2465073
EARTH	2084-10-07 12:53	> 1 mo	0.1722407	0.0193998	31.8861817
VENUS	2089-02-25 03:10	> 1 mo	0.0393247	0.0174553	127.6602052
EARTH	2090-04-17 05:58	> 1 mo	0.1985102	0.0836698	168.7188580
EARTH	2091-05-13 17:20	> 1 mo	0.0576522	0.0536962	79.9953367
VENUS	2092-04-04 22:36	> 1 mo	0.0135171	0.0121316	111.6400969
EARTH	2092-05-20 20:08	> 1 mo	0.1586754	0.0468603	222.5773448
EARTH	2116-10-06 21:23	> 1 mo	0.1783573	0.0019418	5411.8460501
EARTH	2117-10-14 15:26	> 1 mo	0.0132000	0.0024381	5475.7609393
EARTH	2123-05-01 21:35	> 1 mo	0.1780770	0.0583326	41948.6786096
VENUS	2124-03-19 05:59	> 1 mo	0.0427061	0.0211762	30562.3405267
EARTH	2124-05-16 00:50	> 1 mo	0.0646364	0.0524659	30862.6117860

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
273.70750259	276.39431714	0.00013964	MINIMUM
85.99934650	127.29100279	0.05281596	MINIMUM
0.15201932	21.74517020	0.32163515	SADDLE
179.60588874	201.99888289	0.37050188	SADDLE
1.24221413	203.25901231	1.68342482	SADDLE
180.86745325	22.88777515	2.35073299	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2026TS3

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2086-10-12.373	83240.373	-0.740	0.000	1.23 ± 0.029	2.28E5	3.89E-6	5.97E-1	-5.85	0
2089-10-11.932	84335.932	-3.155	0.000	0.59 ± 0.109	1.48E5	5.05E-8	5.90E-1	-7.76	0
2090-10-12.141	84701.141	0.360	0.000	0.51 ± 0.079	4.86E4	2.16E-5	5.99E-1	-5.13	0
2091-10-12.255	85066.255	-2.040	0.000	0.61 ± 0.009	6.90E4	1.94E-6	5.92E-1	-6.19	0
2099-10-11.493	87987.493	-3.234	0.000	1.18 ± 0.061	2.42E5	1.57E-8	5.88E-1	-8.33	0
2101-10-12.471	88718.471	-3.759	0.000	1.38 ± 0.045	1.94E5	1.88E-9	5.85E-1	-9.27	0
2110-10-13.088	92006.088	-0.339	0.000	1.15 ± 0.000	2.01E7	5.17E-8	5.98E-1	-7.87	0
2111-10-13.593	92371.593	-0.024	0.000	0.48 ± 0.000	1.34E7	8.31E-8	5.99E-1	-7.67	0
2112-10-13.336	92737.336	0.344	0.000	1.30 ± 11.453	1.31E9	6.78E-11	6.03E-1	-10.76	0
2116-10-12.846	94197.846	-0.808	0.000	1.28 ± 0.170	6.66E6	5.71E-8	5.96E-1	-7.86	0
2118-10-12.912	94927.912	-0.774	0.000	0.98 ± 0.090	7.25E5	8.99E-7	5.95E-1	-6.67	0
2118-10-13.133	94928.133	-1.427	0.000	0.24 ± 0.201	3.12E5	1.33E-6	5.95E-1	-6.50	0
2119-10-13.701	95293.701	-2.597	0.000	0.10 ± 0.000	1.75E7	2.31E-9	5.93E-1	-9.27	0
2121-10-13.053	96024.053	-0.741	0.000	1.17 ± 0.000	5.16E7	1.15E-8	5.97E-1	-8.58	0
2121-10-13.080	96024.080	0.964	0.000	0.49 ± 0.110	1.06E7	6.53E-8	6.01E-1	-7.82	0
2122-10-13.130	96389.130	2.717	0.000	0.92 ± 0.219	2.38E7	9.34E-10	6.03E-1	-9.67	0
2123-10-13.344	96754.344	0.409	0.000	1.12 ± 0.138	7.61E6	9.05E-8	5.99E-1	-7.69	0
2124-10-12.194	97119.194	0.521	1.339	1.44 ± 1.598	1.36E5	5.48E-8	1.14E0	-7.69	0
2124-10-12.652	97119.652	-2.305	0.000	1.25 ± 0.151	2.14E6	3.72E-8	5.91E-1	-8.08	0
2124-10-12.861	97119.861	0.373	0.000	0.35 ± 0.194	4.67E6	2.26E-7	5.99E-1	-7.30	0
2124-10-12.904	97119.904	-3.407	0.000	0.95 ± 0.171	7.02E5	4.50E-9	5.90E-1	-9.00	0
2125-10-12.660	97484.660	0.567	0.000	0.55 ± 0.072	7.59E5	1.23E-6	5.98E-1	-6.57	0
2125-10-12.665	97484.665	-2.053	0.000	0.17 ± 0.036	5.37E5	2.66E-7	5.92E-1	-7.23	0
2125-10-12.886	97484.886	-2.091	0.000	0.87 ± 0.138	2.07E6	5.13E-8	5.93E-1	-7.95	0
2125-10-13.125	97485.125	0.330	0.000	0.38 ± 0.000	1.57E7	6.90E-8	6.00E-1	-7.82	0
2126-10-12.844	97849.844	-3.607	0.000	0.38 ± 0.050	3.07E5	5.56E-9	5.88E-1	-8.92	n/a
2126-10-13.194	97850.194	-2.937	0.000	1.11 ± 0.039	6.93E5	2.23E-8	5.92E-1	-8.31	n/a


Based on 12 optical observations (of which 2 are rejected as outliers) from 2026/10/03.420 to 2026/10/07.247.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.48 and 1.48 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20261007 155731.955 UTC.

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