Asteroids

2026RE39 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.921

Aphelion (Q)

2.857

Eccentricity (e)

0.512

Inclination (i)

3.9

deg

Orbit period (P)

948.4

Earth MOID

0.00513

U parameter

7.4

Next Earth close approach

Date

2047-07-14

Nominal distance (from Earth center)

0.09896

14804129

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.6

mag

Diameter

13 - 28*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-15

Observatory

ATLAS-MLO, Mauna Loa

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

1.889128

1-sigma variation

0.001033

Unit

Eccentricity (e)

Value

0.512375

1-sigma variation

0.000288

Unit

Inclination (i)

Value

3.8886

1-sigma variation

0.0016

Unit

Long. of Ascending Node (Ω)

Value

174.3522

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

134.0727

1-sigma variation

0.0036

Unit

Mean Anomaly (M)

Value

335.56601

1-sigma variation

0.01908

Unit

Perihelion distance

Value

0.921186

1-sigma variation

Unit

Aphelion distance

Value

2.857070

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.169818

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.021621

1-sigma variation

Unit

MOID

Value

0.005126

1-sigma variation

Unit

Orbit Period

Value

948.3980

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.06686E-6	2.97424E-7	1.58662E-6	-3.11046E-9	-2.41687E-6	1.96960E-5
e	2.97424E-7	8.29595E-8	4.40943E-7	-3.52064E-10	-6.92043E-7	5.49510E-6
i	1.58662E-6	4.40943E-7	2.42249E-6	-2.86084E-8	-2.99811E-6	2.91575E-5
Ω	-3.11046E-9	-3.52064E-10	-2.86084E-8	9.42811E-9	-2.16418E-7	-7.25579E-9
ω	-2.41687E-6	-6.92043E-7	-2.99811E-6	-2.16418E-7	1.32975E-5	-4.64015E-5
M	1.96960E-5	5.49510E-6	2.91575E-5	-7.25579E-9	-4.64015E-5	3.64028E-4

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

26.597

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

13 - 28*

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

0.7

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.896938

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-15.462098

Unit

Source

[2]

Last Observation

Value

2026-09-16.210498

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

63 (4)

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 2026RE39 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	1956-06-27 05:51	> 1 mo	0.0821064	0.0698675	0.0534853
EARTH	1969-06-06 06:41	> 1 w	0.1050307	0.0688761	0.1028833
EARTH	2013-09-20 00:13	> 1 d	0.0621116	0.0048127	0.0632447
EARTH	2026-09-14 05:20	< 1 min	0.0084819	0.0084707	0.0000037
EARTH	2047-07-14 21:43	> 1 mo	0.0989595	0.0845198	0.0205189
EARTH	2068-06-02 11:53	> 1 w	0.1568303	0.0713636	0.1638545
EARTH	2081-09-19 18:04	> 1 w	0.0518329	0.0033465	0.1765276
EARTH	2102-09-13 18:18	> 1 mo	0.0065634	0.0038012	0.4466733
EARTH	2115-09-07 09:59	> 1 mo	0.0409359	0.0012784	18.9072660

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
24.45774240	246.68582254	0.00512558	MINIMUM
334.79502097	160.72556214	0.06882838	MINIMUM
357.02118957	199.18455710	0.10650954	SADDLE
179.66224721	23.75839581	1.87394275	SADDLE
359.21468699	23.10098057	1.90548619	SADDLE
179.82795175	203.84788916	3.87156649	MAXIMUM

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MOID Plots

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