Asteroids

2026RP10 help

Last update: 2026-09-12 02:15 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.524

Aphelion (Q)

1.569

Eccentricity (e)

0.499

Inclination (i)

3.2

deg

Orbit period (P)

391.2

Earth MOID

0.01299

U parameter

8.4

Next Earth close approach

Date

2031-04-30

Nominal distance (from Earth center)

0.13076

19562082

Maximum Brightness

24.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.9

mag

Diameter

17 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-11

Observatory

University of Arizona Mt. Lemmon 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

1.046785

1-sigma variation

0.001079

Unit

Eccentricity (e)

Value

0.499064

1-sigma variation

0.001392

Unit

Inclination (i)

Value

3.1522

1-sigma variation

0.0154

Unit

Long. of Ascending Node (Ω)

Value

184.6161

1-sigma variation

0.0507

Unit

Arg. of Perihelion (ω)

Value

282.4189

1-sigma variation

0.0773

Unit

Mean Anomaly (M)

Value

214.15452

1-sigma variation

0.31272

Unit

Perihelion distance

Value

0.524372

1-sigma variation

Unit

Aphelion distance

Value

1.569197

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.286966

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.122517

1-sigma variation

Unit

MOID

Value

0.012993

1-sigma variation

Unit

Orbit Period

Value

391.1871

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.16334E-6	1.45231E-6	1.09029E-5	1.17188E-6	1.47724E-6	3.36751E-4
e	1.45231E-6	1.93904E-6	1.77289E-5	-1.65318E-5	2.92800E-5	4.26701E-4
i	1.09029E-5	1.77289E-5	2.36874E-4	-5.77702E-4	9.11125E-4	3.36205E-3
Ω	1.17188E-6	-1.65318E-5	-5.77702E-4	2.57419E-3	-3.92007E-3	-5.61067E-4
ω	1.47724E-6	2.92800E-5	9.11125E-4	-3.92007E-3	5.97953E-3	1.80023E-3
M	3.36751E-4	4.26701E-4	3.36205E-3	-5.61067E-4	1.80023E-3	9.77943E-2

Date of computation: 2026-09-12 02:15 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

25.909

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

17 - 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

0.7

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.479815

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-11.331368

Unit

Source

[2]

Last Observation

Value

2026-09-12.038763

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

21 (1)

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:

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Time step:*

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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 2026RP10 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	1953-09-16 04:55	> 1 mo	0.1974338	0.0128118	3.5477324
EARTH	1967-09-13 19:39	> 1 mo	0.0205809	0.0132358	2.0063260
EARTH	1972-05-01 06:23	> 1 mo	0.0523649	0.0323386	2.4221429
VENUS	1976-05-12 21:52	> 1 mo	0.0237122	0.0180189	2.4635672
EARTH	1982-09-17 00:57	> 1 mo	0.0983331	0.0132750	4.8569498
EARTH	1987-05-06 16:29	> 1 mo	0.0892769	0.0329486	4.5804594
EARTH	1996-09-06 19:14	> 1 mo	0.1753762	0.0133993	2.5735583
VENUS	1996-12-05 23:11	> 1 mo	0.0423550	0.0384903	1.2207454
EARTH	2001-04-29 12:45	> 1 mo	0.1793194	0.0309414	2.0057221
EARTH	2011-09-14 07:37	> 1 w	0.0151874	0.0128208	0.2047148
EARTH	2016-05-01 02:02	> 1 w	0.0673966	0.0336191	0.2285801
VENUS	2022-07-02 05:47	> 1 d	0.0176978	0.0172228	0.0096515
EARTH	2026-09-13 22:53	< 1 min	0.0173791	0.0172151	0.0000547
EARTH	2031-04-30 13:18	596.7	0.1307644	0.0389251	0.0351688
EARTH	2047-05-08 08:31	> 1 d	0.1104552	0.0346506	0.1340287
EARTH	2057-09-15 00:02	> 1 d	0.0236059	0.0125347	0.0666767
EARTH	2062-05-01 11:27	341.5	0.0813354	0.0523784	0.0106441
EARTH	2072-09-09 22:29	> 1 d	0.1069090	0.0124766	0.1692629
EARTH	2088-09-17 09:38	> 1 d	0.1621672	0.0118854	0.1886689
VENUS	2092-01-09 18:54	> 1 w	0.0377500	0.0168643	0.1874304
EARTH	2093-05-06 04:31	> 1 d	0.0732609	0.0347685	0.1366157
EARTH	2103-09-18 11:34	> 1 d	0.0788305	0.0121408	0.1211148
VENUS	2103-12-23 07:52	> 1 w	0.0463904	0.0372144	0.0848703
EARTH	2108-05-04 17:15	> 1 w	0.0363633	0.0353372	0.0372735
EARTH	2118-09-17 05:22	> 1 w	0.0431721	0.0118915	0.8273011
VENUS	2120-12-10 10:58	> 1 mo	0.0457368	0.0164189	0.8906523
EARTH	2123-05-05 08:13	> 1 w	0.0363759	0.0353887	0.0869331

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
274.56599252	247.63080012	0.01299295	MINIMUM
85.37248738	117.58668496	0.03436359	MINIMUM
0.00532660	2.57649416	0.46076790	SADDLE
179.93395452	182.63819866	0.55651587	SADDLE
0.11260205	182.75383416	1.54070213	SADDLE
180.07370504	2.71899418	2.55185154	MAXIMUM

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MOID Plots

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