Asteroids

2026LB1 help

Last update: 2026-07-01 12:45 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

1.012

Aphelion (Q)

1.410

Eccentricity (e)

0.164

Inclination (i)

3.7

deg

Orbit period (P)

486.5

Earth MOID

0.00113

U parameter

5.2

Next Earth close approach

Date

2042-06-23

Nominal distance (from Earth center)

0.02154

3222983

Maximum Brightness

25.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

29.9

mag

Diameter

2.8 - 6*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-06-09

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.210614

1-sigma variation

0.000014

Unit

Eccentricity (e)

Value

0.164384

1-sigma variation

0.000010

Unit

Inclination (i)

Value

3.7499

1-sigma variation

0.0002

Unit

Long. of Ascending Node (Ω)

Value

79.4922

1-sigma variation

9.206E-6

Unit

Arg. of Perihelion (ω)

Value

195.1023

1-sigma variation

0.0003

Unit

Mean Anomaly (M)

Value

348.05733

1-sigma variation

0.00010

Unit

Perihelion distance

Value

1.011608

1-sigma variation

Unit

Aphelion distance

Value

1.409620

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.415034

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.001359

1-sigma variation

Unit

MOID

Value

0.001131

1-sigma variation

Unit

Orbit Period

Value

486.5272

1-sigma variation

Unit

U parameter

Value

5.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.85909E-10	1.32680E-10	2.63237E-9	-1.25259E-10	3.96901E-9	7.16367E-10
e	1.32680E-10	9.46962E-11	1.87924E-9	-8.94190E-11	2.83995E-9	5.06141E-10
i	2.63237E-9	1.87924E-9	3.73715E-8	-1.77777E-9	5.71924E-8	9.44950E-9
Ω	-1.25259E-10	-8.94190E-11	-1.77777E-9	8.47583E-11	-2.71636E-9	-4.53337E-10
ω	3.96901E-9	2.83995E-9	5.71924E-8	-2.71636E-9	9.79563E-8	6.04729E-9
M	7.16367E-10	5.06141E-10	9.44950E-9	-4.53337E-10	6.04729E-9	9.22749E-9

Date of computation: 2026-07-01 12:45 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

29.917

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

2.8 - 6*

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

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.707048

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-06-08.370468

Unit

Source

[2]

Last Observation

Value

2026-06-10.620991

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

48 (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 2026LB1 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	1962-05-31 07:55	> 1 w	0.0284553	0.0038266	0.0868544
EARTH	1975-08-04 15:27	> 1 w	0.1190850	0.0414011	0.0818760
EARTH	1992-05-22 00:59	> 1 d	0.0704022	0.0108335	0.0499851
EARTH	2005-06-22 21:10	> 1 d	0.0148077	0.0108211	0.0013381
EARTH	2026-06-10 10:00	< 1 s	0.0018791	0.0018788	0.0000001
EARTH	2042-06-23 06:08	> 1 d	0.0215443	0.0168520	0.0015731
EARTH	2063-08-26 22:26	> 1 d	0.1766802	0.0619620	0.0459521
EARTH	2068-05-28 14:04	> 1 w	0.0474932	0.0028661	0.0496655
EARTH	2068-09-23 06:45	> 1 mo	0.1591953	0.0878077	0.0347421
EARTH	2084-04-08 00:53	> 1 mo	0.1875255	0.0362730	0.2339108
EARTH	2084-08-20 06:41	> 1 mo	0.1089802	0.0557383	0.3172271
EARTH	2089-05-16 14:38	> 1 w	0.1820769	0.0132256	0.3342936
EARTH	2105-08-16 02:49	539.2	0.0822799	0.0805565	0.0005940
EARTH	2110-05-18 23:24	> 1 d	0.1693634	0.0086491	0.1054721

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
347.59706036	155.17252018	0.00113114	MINIMUM
181.50797688	351.53339607	0.42641959	SADDLE
1.04260648	351.24725823	1.99525155	SADDLE
180.50733885	170.70051884	2.42614307	MAXIMUM

Download:

MOID Plots

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