Asteroids

2026LS1 help

Last update: 2026-06-16 12:46 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.906

Aphelion (Q)

1.787

Eccentricity (e)

0.327

Inclination (i)

1.5

deg

Orbit period (P)

570.5

Earth MOID

0.00121

U parameter

6.3

Next Earth close approach

Date

2037-08-29

Nominal distance (from Earth center)

0.09786

14640305

Maximum Brightness

29.5

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

26.7

mag

Diameter

12 - 27*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-06-12

Observatory

ATLAS Chile, Rio Hurtado

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.346236

1-sigma variation

0.000094

Unit

Eccentricity (e)

Value

0.327243

1-sigma variation

0.000057

Unit

Inclination (i)

Value

1.4630

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

264.4382

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

53.2890

1-sigma variation

0.0002

Unit

Mean Anomaly (M)

Value

328.35626

1-sigma variation

0.00441

Unit

Perihelion distance

Value

0.905690

1-sigma variation

Unit

Aphelion distance

Value

1.786782

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.010906

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.511000

1-sigma variation

Unit

MOID

Value

0.001211

1-sigma variation

Unit

Orbit Period

Value

570.5324

1-sigma variation

Unit

U parameter

Value

6.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.82426E-9	5.35312E-9	2.53483E-8	-1.23480E-8	-1.18946E-8	4.14686E-7
e	5.35312E-9	3.24761E-9	1.53502E-8	-7.42571E-9	-7.21792E-9	2.51541E-7
i	2.53483E-8	1.53502E-8	7.84950E-8	-4.87750E-8	-2.89049E-8	1.19418E-6
Ω	-1.23480E-8	-7.42571E-9	-4.87750E-8	4.85404E-8	4.76837E-9	-5.87426E-7
ω	-1.18946E-8	-7.21792E-9	-2.89049E-8	4.76837E-9	2.73305E-8	-5.58777E-7
M	4.14686E-7	2.51541E-7	1.19418E-6	-5.87426E-7	-5.58777E-7	1.94903E-5

Date of computation: 2026-06-16 12:46 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

26.679

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

12 - 27*

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

0.334632

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-06-12.258003

Unit

Source

[2]

Last Observation

Value

2026-06-13.309892

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

38 (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 2026LS1 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	1962-10-05 09:30	164.2	0.0321249	0.0300968	0.0007127
EARTH	1973-06-05 16:42	458.9	0.0632705	0.0514509	0.0039406
EARTH	1987-06-30 15:07	507.6	0.0695973	0.0675037	0.0006980
EARTH	2001-09-03 19:29	> 1 d	0.0920533	0.0853898	0.0022320
MARS	2009-11-11 21:54	317.2	0.0426535	0.0422059	0.0006003
EARTH	2015-10-10 02:02	840.7	0.0652778	0.0463375	0.0065454
EARTH	2026-06-13 06:47	< 1 s	0.0011969	0.0011963	0.0000002
EARTH	2037-08-29 00:00	> 1 d	0.0978644	0.0912308	0.0022477
MARS	2038-01-19 21:43	387.3	0.0404354	0.0400901	0.0006656
EARTH	2048-10-12 05:50	1199.5	0.1358063	0.0958348	0.0136025
EARTH	2056-05-30 11:15	1271.7	0.1506255	0.1042481	0.0154609
EARTH	2067-07-08 08:03	> 1 d	0.0825194	0.0623539	0.0067460
EARTH	2078-10-01 19:27	454.4	0.0403901	0.0401246	0.0002461
EARTH	2097-07-06 06:05	> 1 d	0.0793427	0.0736662	0.0018933
EARTH	2108-10-10 06:16	458.2	0.0912147	0.0791024	0.0041136
EARTH	2116-06-04 10:25	296.0	0.1021052	0.0925168	0.0031962

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
318.67319365	157.13268688	0.00121071	MINIMUM
38.53624137	266.58186804	0.02467925	MINIMUM
358.83934266	212.25027718	0.11018331	SADDLE
179.24714740	32.49053997	0.80109969	SADDLE
358.45076020	31.67980851	1.89167003	SADDLE
179.14202444	212.40826911	2.80078707	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2026LS1

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2097-06-13.479	87137.479	4.714	1.19 ± 0.001	1.94E3	7.59E-9	1.36E-1	-9.14
2105-06-14.543	90059.543	4.642	1.07 ± 0.001	2.07E5	1.08E-10	1.36E-1	-11.04
2108-06-14.285	91155.285	4.974	0.80 ± 0.000	2.70E4	1.99E-10	1.36E-1	-10.78


Based on 38 optical observations (of which 0 are rejected as outliers) from 2026/06/12.258 to 2026/06/13.310.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.71 and 1.71 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20260617 120702.049 UTC.

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