Asteroids

2026MU1 help

Last update: 2026-06-24 12:46 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.830

Aphelion (Q)

2.457

Eccentricity (e)

0.495

Inclination (i)

4.6

deg

Orbit period (P)

769.6

Earth MOID

0.00748

U parameter

7.4

Next Earth close approach

Date

2028-10-23

Nominal distance (from Earth center)

0.08888

13296969

Maximum Brightness

23.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.1

mag

Diameter

25 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-06-22

Observatory

ATLAS Chile, Rio Hurtado

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

1.643465

1-sigma variation

0.000709

Unit

Eccentricity (e)

Value

0.495108

1-sigma variation

0.000253

Unit

Inclination (i)

Value

4.5816

1-sigma variation

0.0019

Unit

Long. of Ascending Node (Ω)

Value

267.5522

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

69.0034

1-sigma variation

0.0012

Unit

Mean Anomaly (M)

Value

331.38316

1-sigma variation

0.02190

Unit

Perihelion distance

Value

0.829773

1-sigma variation

Unit

Aphelion distance

Value

2.457157

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.037287

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.524528

1-sigma variation

Unit

MOID

Value

0.007485

1-sigma variation

Unit

Orbit Period

Value

769.5543

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.02908E-7	1.79576E-7	1.33316E-6	8.47813E-8	-6.36614E-7	1.55298E-5
e	1.79576E-7	6.41286E-8	4.75948E-7	3.01145E-8	-2.25488E-7	5.54499E-6
i	1.33316E-6	4.75948E-7	3.53803E-6	2.29450E-7	-1.71634E-6	4.11724E-5
Ω	8.47813E-8	3.01145E-8	2.29450E-7	2.06011E-8	-1.55598E-7	2.62591E-6
ω	-6.36614E-7	-2.25488E-7	-1.71634E-6	-1.55598E-7	1.33815E-6	-1.97493E-5
M	1.55298E-5	5.54499E-6	4.11724E-5	2.62591E-6	-1.97493E-5	4.79574E-4

Date of computation: 2026-06-24 12:46 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

25.125

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

25 - 60*

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

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.713176

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-06-22.21482

Unit

Source

[2]

Last Observation

Value

2026-06-24.010694

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

30 (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 2026MU1 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	1950-10-26 23:35	> 1 mo	0.0711503	0.0630867	0.5499862
EARTH	1967-06-21 14:49	> 1 w	0.0313264	0.0056020	0.2454649
EARTH	1969-10-28 03:36	> 1 w	0.0668195	0.0625701	0.0732507
EARTH	1988-09-14 03:05	> 1 mo	0.1830754	0.1015111	0.0354229
EARTH	2007-07-29 23:12	> 1 w	0.1607550	0.0621453	0.0337561
MARS	2007-12-20 06:13	> 1 d	0.0491711	0.0418398	0.0300397
EARTH	2026-06-23 14:44	< 1 min	0.0131853	0.0131675	0.0000059
EARTH	2028-10-23 17:36	> 1 d	0.0888847	0.0737039	0.0056140
MARS	2043-09-17 10:29	> 1 d	0.0449723	0.0449606	0.0006077
EARTH	2047-06-12 04:32	> 1 d	0.1824206	0.0051040	0.0862872
EARTH	2049-09-13 08:42	> 1 mo	0.1857854	0.1320474	0.0197554
EARTH	2070-07-28 12:53	> 1 mo	0.1583886	0.0221732	0.0665123
EARTH	2072-11-09 19:00	> 1 w	0.1420043	0.0590776	0.1253475
EARTH	2091-06-28 01:44	> 1 w	0.0271214	0.0091308	0.0840539
EARTH	2093-10-31 16:18	> 1 d	0.0593710	0.0593675	0.0000025
EARTH	2112-07-18 03:03	> 1 mo	0.1295719	0.0031439	0.5160557
EARTH	2114-11-10 22:34	> 1 mo	0.1321854	0.0582563	0.7354610

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
320.22983380	168.14168845	0.00748475	MINIMUM
37.76935511	294.07846956	0.06149836	MINIMUM
359.59381085	232.30738430	0.19298000	SADDLE
179.61988338	51.56166634	1.47197175	SADDLE
358.58185763	50.52074206	1.81820649	SADDLE
179.39672035	231.42591330	3.46557686	MAXIMUM

Download:

MOID Plots

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