Asteroids

2026HM6 help

Last update: 2026-05-01 13:15 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.709

Aphelion (Q)

3.533

Eccentricity (e)

0.666

Inclination (i)

1.2

deg

Orbit period (P)

1128.2

Earth MOID

0.00171

U parameter

8.5

Next Earth close approach

Date

2032-10-04

Nominal distance (from Earth center)

0.00655

980031

Maximum Brightness

18.4

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

27.1

mag

Diameter

10 - 23*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-04-27

Observatory

Kitt Peak-Bok

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

2.120873

1-sigma variation

0.006952

Unit

Eccentricity (e)

Value

0.665787

1-sigma variation

0.001251

Unit

Inclination (i)

Value

1.2121

1-sigma variation

0.0028

Unit

Long. of Ascending Node (Ω)

Value

195.5680

1-sigma variation

0.0170

Unit

Arg. of Perihelion (ω)

Value

101.1479

1-sigma variation

0.0177

Unit

Mean Anomaly (M)

Value

357.54586

1-sigma variation

0.02281

Unit

Perihelion distance

Value

0.708823

1-sigma variation

Unit

Aphelion distance

Value

3.532924

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.352477

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.048032

1-sigma variation

Unit

MOID

Value

0.001712

1-sigma variation

Unit

Orbit Period

Value

1128.1595

1-sigma variation

Unit

U parameter

Value

8.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.83337E-5	8.70026E-6	1.92619E-5	1.13794E-4	-1.18038E-4	1.58577E-4
e	8.70026E-6	1.56608E-6	3.46685E-6	2.04767E-5	-2.12400E-5	2.85445E-5
i	1.92619E-5	3.46685E-6	7.74259E-6	4.65666E-5	-4.83412E-5	6.31977E-5
Ω	1.13794E-4	2.04767E-5	4.65666E-5	2.90271E-4	-3.01791E-4	3.73377E-4
ω	-1.18038E-4	-2.12400E-5	-4.83412E-5	-3.01791E-4	3.13812E-4	-3.87304E-4
M	1.58577E-4	2.85445E-5	6.31977E-5	3.73377E-4	-3.87304E-4	5.20272E-4

Date of computation: 2026-05-01 13:15 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

27.056

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

10 - 23*

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

0.656328

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-04-27.303333

Unit

Source

[2]

Last Observation

Value

2026-05-01.036705

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

29 (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

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 2026HM6 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
VENUS	1952-03-10 03:47	> 1 mo	0.0364519	0.0249095	0.2914540
EARTH	1961-05-20 08:51	> 1 mo	0.1731694	0.0057657	1.0227153
EARTH	2026-05-02 04:31	< 1 min	0.0097371	0.0096866	0.0000168
EARTH	2032-10-04 10:38	> 1 w	0.0065511	0.0016959	0.1811471
VENUS	2045-02-02 01:25	> 1 mo	0.0423106	0.0178859	5.8137230
MARS	2045-05-06 08:21	> 1 mo	0.0167422	0.0106874	11.0702888
EARTH	2054-05-01 03:54	> 1 mo	0.0187680	0.0103298	13.1242931
EARTH	2060-10-14 09:46	> 1 mo	0.1441112	0.0008228	32.7535661
EARTH	2082-05-02 04:14	> 1 mo	0.0292277	0.0116097	170.1283924
VENUS	2097-12-16 02:31	> 1 mo	0.0402850	0.0277500	455.8139439
VENUS	2101-02-11 05:56	> 1 mo	0.0498708	0.0498528	5.7763950

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
37.52109388	267.61214913	0.00171210	MINIMUM
322.02005773	116.38474593	0.00931167	MINIMUM
359.66772038	191.85127020	0.30815321	SADDLE
359.69078027	11.89471066	1.69260555	SADDLE
179.93481914	12.22631756	2.54933520	SADDLE
179.93598161	192.22497900	4.54921462	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2026HM6

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2072-10-05.816	78120.816	-1.629	0.000	1.05 ± 0.058	1.83E6	5.72E-8	2.04E-1	-7.94
2076-10-04.413	79580.413	2.618	2.609	1.17 ± 0.063	9.96E5	2.21E-11	2.00E-1	-11.40
2079-10-05.288	80676.288	2.111	0.000	1.17 ± 0.062	8.58E4	3.04E-7	2.06E-1	-7.28
2079-10-05.334	80676.334	0.066	0.000	0.02 ± 0.000	1.65E8	5.67E-9	2.02E-1	-9.01
2079-10-05.357	80676.357	2.596	0.000	0.90 ± 0.062	1.48E5	1.95E-7	2.07E-1	-7.47


Based on 26 optical observations (of which 1 are rejected as outliers) from 2026/04/27.303 to 2026/04/30.964.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.17 and 1.17 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20260501 000507.152 UTC.

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