Asteroids

2018MT6 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.035

Aphelion (Q)

2.635

Eccentricity (e)

0.436

Inclination (i)

2.1

deg

Orbit period (P)

908.1

Earth MOID

0.02259

U parameter

7.8

Next Earth close approach

Date

2028-04-28

Nominal distance (from Earth center)

0.16718

25009852

Maximum Brightness

24.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.2

mag

Diameter

15 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2018-06-19

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.835204

1-sigma variation

0.001627

Unit

Eccentricity (e)

Value

0.436021

1-sigma variation

0.000457

Unit

Inclination (i)

Value

2.1244

1-sigma variation

0.0160

Unit

Long. of Ascending Node (Ω)

Value

95.9003

1-sigma variation

0.1979

Unit

Arg. of Perihelion (ω)

Value

157.3808

1-sigma variation

0.2442

Unit

Mean Anomaly (M)

Value

357.68578

1-sigma variation

1.48316

Unit

Perihelion distance

Value

1.035016

1-sigma variation

Unit

Aphelion distance

Value

2.635393

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.504857

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.041504

1-sigma variation

Unit

MOID

Value

0.022591

1-sigma variation

Unit

Orbit Period

Value

908.0819

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.64854E-6	7.43477E-7	2.59834E-5	-3.22130E-4	3.97488E-4	-2.41375E-3
e	7.43477E-7	2.08703E-7	7.29383E-6	-9.04256E-5	1.11579E-4	-6.77568E-4
i	2.59834E-5	7.29383E-6	2.54908E-4	-3.16023E-3	3.89953E-3	-2.36799E-2
Ω	-3.22130E-4	-9.04256E-5	-3.16023E-3	3.91791E-2	-4.83445E-2	2.93573E-1
ω	3.97488E-4	1.11579E-4	3.89953E-3	-4.83445E-2	5.96541E-2	-3.62250E-1
M	-2.41375E-3	-6.77568E-4	-2.36799E-2	2.93573E-1	-3.62250E-1	2.19977E0

Date of computation: 2025-09-10 00:30 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

26.218

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

15 - 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

[-]

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

2635

Unit

Source

[1]

Normalized RMS of residuals

Value

0.767325

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2018-06-19.24277

Unit

Source

[2]

Last Observation

Value

2018-07-10.47361

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

33 (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

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Close Approaches for 2018MT6 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	2013-07-14 10:57	> 1 d	0.1764128	0.0546139	0.0406012
EARTH	2018-06-19 07:58	< 1 min	0.0322689	0.0321729	0.0000320
EARTH	2023-05-23 07:32	> 1 w	0.0401795	0.0097433	0.0206592
EARTH	2028-04-28 21:09	> 1 d	0.1671805	0.0253557	0.0790039
MARS	2055-05-08 01:34	> 1 w	0.0331847	0.0034213	0.1574967
EARTH	2100-07-01 02:10	> 1 w	0.0633335	0.0100304	0.0485229
EARTH	2105-06-07 02:07	> 1 d	0.0263484	0.0260183	0.0001900
EARTH	2110-05-09 20:56	> 1 w	0.1002178	0.0199561	0.0753774

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
3.00675113	155.46241666	0.02435584	MINIMUM
180.31136965	331.41258888	1.65001589	SADDLE
0.83732046	331.96652763	2.02070649	SADDLE
180.37098288	151.45457265	3.64967762	MAXIMUM

Download:

MOID Plots

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