Asteroids

2026RO10 help

Last update: 2026-09-12 00:45 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.760

Aphelion (Q)

1.424

Eccentricity (e)

0.304

Inclination (i)

10.7

deg

Orbit period (P)

416.8

Earth MOID

0.00059

U parameter

7.7

Next Earth close approach

Date

2028-03-15

Nominal distance (from Earth center)

0.0724

10830530

Maximum Brightness

21.5

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

23.9

mag

Diameter

40 - 100*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-10

Observatory

MAPS, San Pedro de Atacama

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

1.091950

1-sigma variation

0.000431

Unit

Eccentricity (e)

Value

0.304355

1-sigma variation

0.000627

Unit

Inclination (i)

Value

10.7436

1-sigma variation

0.0240

Unit

Long. of Ascending Node (Ω)

Value

349.6954

1-sigma variation

0.0047

Unit

Arg. of Perihelion (ω)

Value

92.8027

1-sigma variation

0.0133

Unit

Mean Anomaly (M)

Value

217.21540

1-sigma variation

0.12055

Unit

Perihelion distance

Value

0.759609

1-sigma variation

Unit

Aphelion distance

Value

1.424291

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.001099

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.016749

1-sigma variation

Unit

MOID

Value

0.000591

1-sigma variation

Unit

Orbit Period

Value

416.7757

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.85749E-7	2.65729E-7	1.01158E-5	-1.99495E-6	-8.31984E-7	5.19540E-5
e	2.65729E-7	3.93214E-7	1.50287E-5	-2.95863E-6	3.19088E-7	7.44105E-5
i	1.01158E-5	1.50287E-5	5.74692E-4	-1.13117E-4	1.90691E-5	2.83305E-3
Ω	-1.99495E-6	-2.95863E-6	-1.13117E-4	2.22671E-5	-3.15993E-6	-5.58677E-4
ω	-8.31984E-7	3.19088E-7	1.90691E-5	-3.15993E-6	1.78058E-4	-2.22759E-4
M	5.19540E-5	7.44105E-5	2.83305E-3	-5.58677E-4	-2.22759E-4	1.45321E-2

Date of computation: 2026-09-12 00:45 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

23.885

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

40 - 100*

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

0.285164

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-10.0234

Unit

Source

[2]

Last Observation

Value

2026-09-11.98766

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

33 (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 2026RO10 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	1955-02-18 06:32	> 1 mo	0.1852717	0.0533266	0.2290714
EARTH	1961-09-06 06:42	> 1 d	0.1327221	0.0034732	0.1572116
EARTH	1963-03-08 04:11	> 1 w	0.0792908	0.0095918	0.1292256
EARTH	1969-09-09 06:31	> 1 d	0.0685995	0.0335529	0.0118381
EARTH	1971-03-11 13:10	> 1 d	0.0279321	0.0076941	0.0438329
EARTH	1977-09-06 20:05	> 1 d	0.1129317	0.0024004	0.0703052
EARTH	1979-03-07 14:54	> 1 d	0.0907261	0.0108751	0.0773306
EARTH	1987-02-12 09:07	> 1 w	0.1968491	0.0719963	0.0747859
EARTH	2018-09-19 18:46	> 1 d	0.1231468	0.0372940	0.0287067
EARTH	2020-03-19 19:09	> 1 d	0.1449996	0.0656612	0.0265645
EARTH	2026-09-14 15:15	1.0	0.0372548	0.0370011	0.0000846
EARTH	2028-03-15 23:51	199.6	0.0723976	0.0636079	0.0029331
EARTH	2034-09-14 22:13	> 1 d	0.0405877	0.0001014	0.0278203
EARTH	2036-03-16 18:54	> 1 d	0.0917885	0.0247161	0.0225462
EARTH	2042-09-20 01:44	277.5	0.1244181	0.1114957	0.0043075
EARTH	2044-03-21 08:09	59.7	0.1856233	0.1776522	0.0026602
EARTH	2075-02-18 03:29	> 1 w	0.1846478	0.0527375	0.0772730
EARTH	2081-09-06 19:49	> 1 d	0.1252935	0.0004901	0.0912460
EARTH	2083-03-08 20:55	> 1 d	0.0695055	0.0096010	0.0928329
EARTH	2089-09-10 07:51	> 1 d	0.0494186	0.0000612	0.0373641
EARTH	2091-03-12 17:10	> 1 d	0.0129137	0.0094000	0.0129727
EARTH	2097-09-05 05:22	> 1 d	0.1446639	0.0513206	0.0311153
EARTH	2099-03-03 10:12	> 1 d	0.1348014	0.0186771	0.0440549

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
284.87392586	246.00230225	0.00059079	MINIMUM
71.87782872	66.74354072	0.00919168	MINIMUM
358.06904099	335.96873813	0.27739807	SADDLE
178.73730766	156.93635293	0.46660011	SADDLE
358.33010599	156.34069361	1.76750424	SADDLE
179.29774466	337.36576447	2.39880558	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2026RO10

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2043-09-12.986	67504.986	-1.638	0.000	1.27 ± 0.087	1.27E5	2.20E-6	7.68E0	-4.68
2045-09-12.446	68235.446	-1.459	0.000	1.46 ± 0.016	3.04E6	2.42E-8	7.69E0	-6.69
2067-09-12.932	76270.932	-2.815	0.000	0.29 ± 0.113	1.24E5	1.78E-7	7.61E0	-6.14
2072-03-09.986	77910.986	-1.388	0.000	1.12 ± 2.066	1.60E7	1.04E-8	7.72E0	-7.41
2073-09-12.419	78462.419	-0.952	0.000	0.97 ± 0.188	5.59E4	9.84E-6	7.72E0	-4.45
2076-09-12.151	79558.151	-2.029	1.625	1.49 ± 1.949	2.08E3	5.58E-7	1.70E1	-5.45
2077-09-12.412	79923.412	-1.819	0.119	1.49 ± 0.529	1.88E5	3.39E-7	1.71E1	-5.68
2079-09-12.915	80653.915	-0.951	0.000	1.39 ± 0.800	7.91E7	3.80E-9	7.73E0	-7.92
2081-09-12.377	81384.377	-0.788	0.000	1.18 ± 0.306	3.98E5	1.25E-6	7.74E0	-5.42
2082-09-12.618	81749.618	-2.037	0.365	0.66 ± 1.134	6.19E6	4.09E-9	1.70E1	-7.64
2083-09-12.881	82114.881	-2.044	0.374	1.39 ± 0.853	1.82E6	1.02E-8	1.70E1	-7.25
2086-09-12.624	83210.624	-1.833	0.000	1.46 ± 0.606	6.52E5	1.16E-7	7.66E0	-6.49
2087-03-10.692	83389.692	-1.340	1.833	1.48 ± 1.377	6.55E5	6.49E-10	1.71E1	-8.46
2087-09-12.873	83575.873	-1.967	0.000	0.84 ± 0.253	4.40E7	3.08E-9	7.68E0	-8.07
2090-09-12.646	84671.646	-1.855	0.000	0.38 ± 1.073	3.13E6	4.55E-8	7.68E0	-6.92
2099-09-12.836	87958.836	-1.164	0.000	1.34 ± 0.506	6.80E7	3.54E-9	7.72E0	-8.09
2100-03-11.045	88138.045	-2.051	1.098	1.49 ± 2.865	2.66E6	1.24E-9	1.70E1	-8.27
2100-09-13.155	88324.155	-4.389	0.000	1.33 ± 1.131	7.99E4	4.18E-10	7.51E0	-9.03
2101-03-11.212	88503.212	-1.352	0.000	0.05 ± 9.630	2.87E8	1.58E-10	7.75E0	-9.44
2101-03-11.246	88503.246	-1.388	0.431	1.37 ± 1.366	1.45E7	2.97E-9	1.71E1	-7.89
2104-03-10.921	89598.921	-0.887	0.000	1.23 ± 1.539	3.22E7	1.19E-8	7.77E0	-7.58
2105-03-11.198	89964.198	-1.382	0.000	1.04 ± 0.919	1.07E7	3.03E-8	7.72E0	-7.18
2109-09-13.341	91611.341	-4.387	0.000	0.84 ± 0.307	6.40E6	1.08E-11	7.52E0	-10.67
2109-09-13.403	91611.403	-3.513	0.000	0.19 ± 3.077	1.59E4	4.60E-8	7.57E0	-7.04
2112-03-10.894	92520.894	-0.722	0.000	0.96 ± 4.907	5.03E7	3.31E-9	7.78E0	-8.18
2112-09-13.119	92707.119	-0.976	0.000	1.28 ± 0.458	1.59E6	1.99E-7	7.74E0	-6.41
2114-09-13.568	93437.568	4.660	0.000	1.41 ± 0.627	8.80E4	8.50E-11	1.80E1	-9.49
2117-09-13.343	94533.343	-2.113	0.000	0.72 ± 1.636	4.93E5	1.23E-7	7.66E0	-6.64
2120-09-13.063	95629.063	-1.814	0.000	1.37 ± 1.261	3.59E6	2.95E-8	7.68E0	-7.28
2122-09-13.590	96359.590	-0.958	0.000	1.40 ± 1.976	6.06E6	4.35E-8	7.73E0	-7.11


Based on 33 optical observations (of which 0 are rejected as outliers) from 2026/09/10.023 to 2026/09/11.988.
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=20260912 005542.984 UTC.

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