Asteroids

2026MB1 help

Last update: 2026-06-25 12:45 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.829

Aphelion (Q)

1.169

Eccentricity (e)

0.170

Inclination (i)

14.9

deg

Orbit period (P)

364.5

Earth MOID

0.00192

U parameter

6.4

Next Earth close approach

Date

2027-06-21

Nominal distance (from Earth center)

0.0631

9439516

Maximum Brightness

23.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

13 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-06-20

Observatory

Palomar Mountain--ZTF

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

0.998635

1-sigma variation

0.000049

Unit

Eccentricity (e)

Value

0.170339

1-sigma variation

0.000072

Unit

Inclination (i)

Value

14.8954

1-sigma variation

0.0061

Unit

Long. of Ascending Node (Ω)

Value

267.0211

1-sigma variation

4.143E-5

Unit

Arg. of Perihelion (ω)

Value

255.2137

1-sigma variation

0.0146

Unit

Mean Anomaly (M)

Value

75.83106

1-sigma variation

0.02296

Unit

Perihelion distance

Value

0.828529

1-sigma variation

Unit

Aphelion distance

Value

1.168742

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.002295

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.055006

1-sigma variation

Unit

MOID

Value

0.001925

1-sigma variation

Unit

Orbit Period

Value

364.5095

1-sigma variation

Unit

U parameter

Value

6.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.38101E-9	3.53301E-9	2.97808E-7	-1.99416E-9	7.10643E-7	-1.12034E-6
e	3.53301E-9	5.24307E-9	4.41960E-7	-2.95725E-9	1.05445E-6	-1.66246E-6
i	2.97808E-7	4.41960E-7	3.72573E-5	-2.48971E-7	8.88824E-5	-1.40134E-4
Ω	-1.99416E-9	-2.95725E-9	-2.48971E-7	1.71625E-9	-5.95268E-7	9.38157E-7
ω	7.10643E-7	1.05445E-6	8.88824E-5	-5.95268E-7	2.12101E-4	-3.34379E-4
M	-1.12034E-6	-1.66246E-6	-1.40134E-4	9.38157E-7	-3.34379E-4	5.27164E-4

Date of computation: 2026-06-25 12:45 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

26.486

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 - 30*

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

0.5397

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-06-19.269614

Unit

Source

[2]

Last Observation

Value

2026-06-23.331137

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

66 (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 2026MB1 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	2022-06-24 08:46	13.2	0.1511146	0.1502492	0.0002885
EARTH	2023-06-22 16:31	1.3	0.1011808	0.1010655	0.0000384
EARTH	2024-06-20 06:01	10.9	0.0546531	0.0540048	0.0002161
EARTH	2025-06-19 02:54	20.6	0.0151557	0.0138267	0.0004434
EARTH	2026-06-18 20:55	< 1 s	0.0020611	0.0020583	0.0000009
EARTH	2027-06-21 08:28	21.6	0.0630993	0.0619245	0.0003916
EARTH	2028-06-23 06:35	39.5	0.1312940	0.1290808	0.0007378
EARTH	2099-12-05 18:59	1420.4	0.1674510	0.1057874	0.0209613
EARTH	2100-12-10 00:37	> 1 d	0.0986724	0.0464742	0.0196122
EARTH	2101-12-14 08:18	> 1 d	0.0427419	0.0348330	0.0115343
EARTH	2102-12-18 19:53	> 1 d	0.0501770	0.0352642	0.0138014
EARTH	2103-12-24 14:54	> 1 d	0.1071928	0.0589950	0.0174948
EARTH	2105-01-01 16:49	> 1 d	0.1710499	0.1224233	0.0167583
EARTH	2109-06-17 09:00	532.4	0.1925488	0.1564333	0.0120395
EARTH	2110-06-16 16:29	71.5	0.1273942	0.0951218	0.0107595
EARTH	2111-06-18 02:12	351.4	0.0638187	0.0365033	0.0091208
EARTH	2112-06-19 04:07	346.5	0.0054881	0.0027632	0.0057958
EARTH	2113-06-19 11:15	> 1 d	0.0028028	0.0024535	0.0172182
EARTH	2114-06-18 06:24	> 1 w	0.0540792	0.0020392	0.9364295
EARTH	2115-06-17 20:54	> 1 d	0.1118848	0.0004997	1.7226711
EARTH	2116-06-18 16:16	> 1 mo	0.1714662	0.0120175	2.4268647
EARTH	2121-12-31 23:16	> 1 mo	0.1603675	0.0934251	5.4304945
EARTH	2122-12-22 07:50	> 1 mo	0.1094433	0.0712403	5.5776442
EARTH	2123-12-15 11:32	> 1 mo	0.0695302	0.0630412	3.3355806
EARTH	2124-12-09 04:46	> 1 mo	0.0677036	0.0621633	3.4818174
EARTH	2125-12-04 12:22	> 1 mo	0.1091171	0.0650407	8.0163189
EARTH	2126-11-30 05:29	> 1 mo	0.1669980	0.0699780	10.0096713

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
95.34036794	162.56605977	0.00192469	MINIMUM
288.72287330	337.57074770	0.04744001	MINIMUM
11.85531000	70.74624293	0.28645961	SADDLE
192.22407112	248.77035610	0.32168739	SADDLE
7.61725458	245.57794425	1.82163946	SADDLE
181.80301417	59.62165330	2.14308115	MAXIMUM

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MOID Plots

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