Asteroids

2026RL10 help

Last update: 2026-09-16 13:00 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.949

Aphelion (Q)

1.009

Eccentricity (e)

0.031

Inclination (i)

4.9

deg

Orbit period (P)

353.9

Earth MOID

0.00217

U parameter

5.2

Next Earth close approach

Date

2042-08-29

Nominal distance (from Earth center)

0.12959

19386947

Maximum Brightness

25.6

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

26.9

mag

Diameter

11 - 25*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-11

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

0.979099

1-sigma variation

0.000008

Unit

Eccentricity (e)

Value

0.030565

1-sigma variation

0.000009

Unit

Inclination (i)

Value

4.8962

1-sigma variation

0.0009

Unit

Long. of Ascending Node (Ω)

Value

170.0941

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

357.9006

1-sigma variation

0.0027

Unit

Mean Anomaly (M)

Value

84.68777

1-sigma variation

0.00363

Unit

Perihelion distance

Value

0.949173

1-sigma variation

Unit

Aphelion distance

Value

1.009026

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.043895

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.002205

1-sigma variation

Unit

MOID

Value

0.002172

1-sigma variation

Unit

Orbit Period

Value

353.8658

1-sigma variation

Unit

U parameter

Value

5.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.58957E-11	-7.28507E-11	-7.22513E-9	2.79202E-9	-2.10749E-8	2.86422E-8
e	-7.28507E-11	8.05420E-11	7.99373E-9	-3.08888E-9	2.33357E-8	-3.17014E-8
i	-7.22513E-9	7.99373E-9	8.09571E-7	-3.12392E-7	2.41985E-6	-3.24909E-6
Ω	2.79202E-9	-3.08888E-9	-3.12392E-7	1.20561E-7	-9.32416E-7	1.25287E-6
ω	-2.10749E-8	2.33357E-8	2.41985E-6	-9.32416E-7	7.46007E-6	-9.87924E-6
M	2.86422E-8	-3.17014E-8	-3.24909E-6	1.25287E-6	-9.87924E-6	1.31676E-5

Date of computation: 2026-09-16 13:00 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

26.922

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

11 - 25*

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

0.546839

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-11.42602

Unit

Source

[2]

Last Observation

Value

2026-09-15.495939

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

49 (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 2026RL10 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	1965-09-12 23:48	> 1 d	0.0174347	0.0045119	0.0260870
EARTH	1966-03-05 14:37	> 1 w	0.0398330	0.0397059	0.0019171
EARTH	1966-10-05 18:56	1088.6	0.1492115	0.0747702	0.0256050
EARTH	1996-09-07 21:47	26.6	0.1116342	0.1084056	0.0010762
EARTH	1997-04-13 12:47	1266.1	0.0739317	0.0716584	0.0007917
EARTH	1997-09-20 17:36	229.4	0.0573734	0.0521503	0.0017448
EARTH	1998-01-26 17:03	756.8	0.0843884	0.0805866	0.0013052
EARTH	2025-09-06 13:30	1.0	0.1883746	0.1881640	0.0000702
EARTH	2026-09-12 22:52	< 1 min	0.0060978	0.0060950	0.0000009
EARTH	2042-08-29 17:12	11.5	0.1295937	0.1284033	0.0003969
EARTH	2043-03-08 17:30	466.7	0.0772981	0.0772077	0.0000323
EARTH	2059-09-10 15:44	17.9	0.0025258	0.0024680	0.0000206
EARTH	2071-08-21 03:36	> 1 w	0.0682850	0.0218303	0.0627570
EARTH	2071-12-24 16:13	> 1 mo	0.1061370	0.1035317	0.0099360
EARTH	2084-04-08 06:01	> 1 mo	0.1002219	0.1001862	0.0017856
EARTH	2084-09-20 15:50	> 1 d	0.0993735	0.0177518	0.0959995
EARTH	2096-08-30 19:37	> 1 w	0.0318171	0.0069020	0.0684883
EARTH	2109-08-09 00:17	> 1 w	0.1608651	0.0423425	0.8602635
EARTH	2110-02-13 02:52	> 1 mo	0.0987287	0.0983331	0.0616928
EARTH	2123-04-26 17:18	> 1 mo	0.0969101	0.0968792	0.0152866
EARTH	2123-09-17 23:39	> 1 mo	0.0543500	0.0101920	0.9606967

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
181.94014793	246.34237838	0.00217162	MINIMUM
356.54494240	59.18772937	0.04319927	MINIMUM
274.32909425	336.55941176	0.08411879	SADDLE
85.03988344	149.86099916	0.09278313	SADDLE
37.95578246	281.55983913	1.95142688	SADDLE
209.56146843	93.16565358	2.00558530	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2026RL10

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2119-09-08.169	95258.169	1.380	0.000	0.36 ± 0.004	6.84E5	2.04E-6	6.70E-2	-7.07	0
2119-09-08.185	95258.185	1.380	0.000	1.46 ± 0.066	1.89E6	7.01E-7	6.71E-2	-7.54	0


Based on 49 optical observations (of which 0 are rejected as outliers) from 2026/09/11.426 to 2026/09/15.496.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 4.53 and 4.55 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20260916 133953.847 UTC.

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