Asteroids

2026MW1 help

Last update: 2026-07-14 13:16 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.488

Aphelion (Q)

2.029

Eccentricity (e)

0.612

Inclination (i)

15.9

deg

Orbit period (P)

516.0

Earth MOID

0.00669

U parameter

7.9

Next Earth close approach

Date

2038-11-25

Nominal distance (from Earth center)

0.18157

27162023

Maximum Brightness

22.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

110 - 240*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-06-22

Observatory

University of Arizona Catalina Sky 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

1.258951

1-sigma variation

0.000866

Unit

Eccentricity (e)

Value

0.612053

1-sigma variation

0.000445

Unit

Inclination (i)

Value

15.9376

1-sigma variation

0.0156

Unit

Long. of Ascending Node (Ω)

Value

94.4874

1-sigma variation

0.0016

Unit

Arg. of Perihelion (ω)

Value

66.9109

1-sigma variation

0.0024

Unit

Mean Anomaly (M)

Value

28.89578

1-sigma variation

0.04742

Unit

Perihelion distance

Value

0.488406

1-sigma variation

Unit

Aphelion distance

Value

2.029496

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.348756

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.019276

1-sigma variation

Unit

MOID

Value

0.006688

1-sigma variation

Unit

Orbit Period

Value

515.9546

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.49200E-7	3.84986E-7	1.35307E-5	1.41003E-6	2.01505E-6	-4.10442E-5
e	3.84986E-7	1.97842E-7	6.95352E-6	7.24612E-7	1.03414E-6	-2.10914E-5
i	1.35307E-5	6.95352E-6	2.44402E-4	2.54678E-5	3.63224E-5	-7.41281E-4
Ω	1.41003E-6	7.24612E-7	2.54678E-5	2.65398E-6	3.78688E-6	-7.72486E-5
ω	2.01505E-6	1.03414E-6	3.63224E-5	3.78688E-6	5.57149E-6	-1.10354E-4
M	-4.10442E-5	-2.10914E-5	-7.41281E-4	-7.72486E-5	-1.10354E-4	2.24858E-3

Date of computation: 2026-07-14 13:16 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

21.96

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

110 - 240*

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

0.55982

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-06-19.472519

Unit

Source

[2]

Last Observation

Value

2026-06-26.231384

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

64 (2)

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 2026MW1 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	1961-06-28 09:36	> 1 w	0.0904603	0.0096585	0.1759418
EARTH	1978-06-17 04:23	> 1 d	0.1976962	0.0063619	0.2234786
EARTH	1985-07-02 05:20	> 1 w	0.1730428	0.0070660	0.2037115
EARTH	1990-11-18 03:50	> 1 w	0.1804561	0.1729619	0.0538574
EARTH	2002-06-19 20:39	> 1 d	0.1261816	0.0068157	0.1342772
EARTH	2014-11-23 17:10	> 1 d	0.1751801	0.1718763	0.0138705
EARTH	2026-06-23 11:49	< 1 min	0.0393533	0.0392534	0.0000333
VENUS	2036-02-16 20:05	> 1 d	0.0489872	0.0475250	0.0180855
EARTH	2038-11-25 11:47	> 1 d	0.1815669	0.1716769	0.0306700
EARTH	2050-06-22 03:06	> 1 w	0.0751543	0.0050899	0.2134247
EARTH	2062-11-20 12:44	> 1 w	0.1708886	0.1701189	0.0229568
EARTH	2081-06-30 03:14	> 1 w	0.1136386	0.0027757	0.2147360
EARTH	2105-06-26 20:11	> 1 d	0.0128707	0.0024917	0.0439685
EARTH	2122-06-20 06:58	> 1 w	0.1540224	0.0003806	0.5682990

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
71.84433407	168.65055189	0.00668753	MINIMUM
295.98196881	315.05184274	0.17124451	MINIMUM
5.23118685	65.33032366	0.53618038	SADDLE
182.39759042	237.79417961	1.08400680	SADDLE
3.40427845	241.52237053	1.48583824	SADDLE
179.81846487	56.47991265	2.99868421	MAXIMUM

Download:

MOID Plots

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