Asteroids

2026EC1 help

Last update: 2026-03-18 10:55 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.903

Aphelion (Q)

3.839

Eccentricity (e)

0.619

Inclination (i)

2.6

deg

Orbit period (P)

1333.7

Earth MOID

0.00720

U parameter

7.6

Next Earth close approach

Date

2037-02-25

Nominal distance (from Earth center)

0.19437

29076744

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.9

mag

Diameter

11 - 25*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-03-08

Observatory

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

2.371196

1-sigma variation

0.002864

Unit

Eccentricity (e)

Value

0.619098

1-sigma variation

0.000482

Unit

Inclination (i)

Value

2.6348

1-sigma variation

0.0016

Unit

Long. of Ascending Node (Ω)

Value

346.9386

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

229.7000

1-sigma variation

0.0023

Unit

Mean Anomaly (M)

Value

14.80835

1-sigma variation

0.02562

Unit

Perihelion distance

Value

0.903194

1-sigma variation

Unit

Aphelion distance

Value

3.839199

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.430281

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.052159

1-sigma variation

Unit

MOID

Value

0.007196

1-sigma variation

Unit

Orbit Period

Value

1333.6742

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.20029E-6	1.37964E-6	4.63648E-6	-4.22292E-7	6.61089E-6	-7.33569E-5
e	1.37964E-6	2.32115E-7	7.80041E-7	-7.10530E-8	1.11234E-6	-1.23418E-5
i	4.63648E-6	7.80041E-7	2.62272E-6	-2.38078E-7	3.73144E-6	-4.14756E-5
Ω	-4.22292E-7	-7.10530E-8	-2.38078E-7	2.24606E-8	-3.43224E-7	3.77796E-6
ω	6.61089E-6	1.11234E-6	3.73144E-6	-3.43224E-7	5.37196E-6	-5.91442E-5
M	-7.33569E-5	-1.23418E-5	-4.14756E-5	3.77796E-6	-5.91442E-5	6.56226E-4

Date of computation: 2026-03-18 10:55 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

26.908

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

11 - 25*

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

0.621641

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-03-08.283952

Unit

Source

[2]

Last Observation

Value

2026-03-13.2859

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

65 (0)

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

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 2026EC1 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	1960-05-29 03:18	> 1 w	0.0866419	0.0534236	0.0375063
EARTH	1971-04-15 12:08	> 1 d	0.1082667	0.0871198	0.0070884
MARS	1971-07-14 21:47	> 1 d	0.0465248	0.0100998	0.0182705
EARTH	1982-05-22 23:57	> 1 w	0.0820571	0.0547590	0.0172142
MARS	1993-01-27 14:46	> 1 d	0.0165622	0.0126561	0.0505251
EARTH	1993-06-21 05:34	> 1 w	0.0772074	0.0483019	0.0785267
EARTH	2004-05-30 21:10	> 1 w	0.0876283	0.0500109	0.0708952
EARTH	2015-03-27 18:00	> 1 w	0.0711944	0.0004346	0.0809113
EARTH	2026-03-15 16:52	< 1 min	0.0102959	0.0102752	0.0000069
EARTH	2037-02-25 13:31	> 1 w	0.1943660	0.0047987	0.1328531
EARTH	2055-06-29 04:27	> 1 w	0.1154943	0.0438120	0.2712266
EARTH	2066-02-26 18:34	> 1 w	0.1695654	0.0045881	0.2377123
EARTH	2095-06-12 03:45	> 1 w	0.0618955	0.0409293	0.0968521
MARS	2105-12-01 21:18	> 1 w	0.0407611	0.0022772	0.2115476
EARTH	2124-06-30 10:12	> 1 w	0.1450983	0.0389326	0.3365642

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
339.55045437	70.52403355	0.00719570	MINIMUM
22.49482984	156.44679087	0.04661027	MINIMUM
1.95864879	115.28200439	0.10916984	SADDLE
1.25791584	293.83941955	1.89643066	SADDLE
180.31576579	292.58822765	2.84632057	SADDLE
180.27744693	112.57260460	4.84511349	MAXIMUM

Download:

MOID Plots

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