Asteroids

2026RM2 help

Last update: 2026-09-12 13:00 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.940

Aphelion (Q)

3.700

Eccentricity (e)

0.595

Inclination (i)

3.5

deg

Orbit period (P)

1290.7

Earth MOID

0.00168

U parameter

7.8

Next Earth close approach

Date

2055-06-28

Nominal distance (from Earth center)

0.06016

8999771

Maximum Brightness

25.9

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

28.2

mag

Diameter

6 - 14*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-06

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

2.319926

1-sigma variation

0.002942

Unit

Eccentricity (e)

Value

0.594908

1-sigma variation

0.000531

Unit

Inclination (i)

Value

3.4983

1-sigma variation

0.0023

Unit

Long. of Ascending Node (Ω)

Value

343.1930

1-sigma variation

3.142E-5

Unit

Arg. of Perihelion (ω)

Value

323.0579

1-sigma variation

0.0010

Unit

Mean Anomaly (M)

Value

343.10203

1-sigma variation

0.03078

Unit

Perihelion distance

Value

0.939783

1-sigma variation

Unit

Aphelion distance

Value

3.700069

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.007153

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.866940

1-sigma variation

Unit

MOID

Value

0.001683

1-sigma variation

Unit

Orbit Period

Value

1290.6533

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.65566E-6	1.56359E-6	6.66748E-6	-8.66051E-8	-2.74376E-6	9.05663E-5
e	1.56359E-6	2.82453E-7	1.20444E-6	-1.56428E-8	-4.95734E-7	1.63602E-5
i	6.66748E-6	1.20444E-6	5.13691E-6	-6.65473E-8	-2.11278E-6	6.97633E-5
Ω	-8.66051E-8	-1.56428E-8	-6.65473E-8	9.87454E-10	2.64673E-8	-9.06023E-7
ω	-2.74376E-6	-4.95734E-7	-2.11278E-6	2.64673E-8	9.15217E-7	-2.87163E-5
M	9.05663E-5	1.63602E-5	6.97633E-5	-9.06023E-7	-2.87163E-5	9.47618E-4

Date of computation: 2026-09-12 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

28.218

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

6 - 14*

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

0.484045

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-06.31723

Unit

Source

[2]

Last Observation

Value

2026-09-11.42131

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

24 (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:

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 2026RM2 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	1980-06-22 02:37	> 1 mo	0.0588171	0.0586243	0.0213136
EARTH	1987-09-21 01:14	> 1 w	0.1663946	0.0009980	0.3585913
EARTH	2019-06-09 18:04	> 1 w	0.1114175	0.0608023	0.0656732
EARTH	2026-09-05 01:16	< 1 min	0.0040316	0.0040226	0.0000030
EARTH	2055-06-28 06:34	> 1 mo	0.0601598	0.0596146	0.0322233
EARTH	2073-09-03 07:59	> 1 mo	0.0092703	0.0004786	0.8538267
EARTH	2091-06-08 22:37	> 1 mo	0.1516491	0.0626844	84.7465291
EARTH	2116-08-10 20:53	> 1 mo	0.0717837	0.0280688	46.9358232

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
18.27585683	238.05841307	0.00168308	MINIMUM
341.63205870	166.07407507	0.05937795	MINIMUM
357.60789973	197.46230427	0.08494870	SADDLE
359.44070289	21.14688323	1.92410139	SADDLE
179.82280829	21.71146596	2.71629323	SADDLE
179.89879433	201.74662907	4.71516482	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2026RM2

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2069-09-05.010	76994.010	-4.450	0.000	0.12 ± 0.004	7.24E4	7.79E-10	2.11E-2	-10.56	0
2087-09-04.835	83567.835	-4.350	0.000	0.87 ± 0.001	8.41E4	8.60E-10	2.08E-2	-10.67	0


Based on 24 optical observations (of which 1 are rejected as outliers) from 2026/09/06.317 to 2026/09/11.421.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.41 and 1.41 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20260912 132201.933 UTC.

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