Asteroids

2025YM6 help

Last update: 2026-01-06 13:01 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.661

Aphelion (Q)

1.099

Eccentricity (e)

0.249

Inclination (i)

8.6

deg

Orbit period (P)

301.7

Earth MOID

0.02320

U parameter

6.4

Next Earth close approach

Date

2039-11-04

Nominal distance (from Earth center)

0.15807

23646443

Maximum Brightness

24.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.3

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-12-27

Observatory

Pan-STARRS 2, Haleakala

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

0.880379

1-sigma variation

0.000036

Unit

Eccentricity (e)

Value

0.248880

1-sigma variation

0.000147

Unit

Inclination (i)

Value

8.5860

1-sigma variation

0.0062

Unit

Long. of Ascending Node (Ω)

Value

278.6609

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

320.9967

1-sigma variation

0.0007

Unit

Mean Anomaly (M)

Value

192.60330

1-sigma variation

0.01031

Unit

Perihelion distance

Value

0.661270

1-sigma variation

Unit

Aphelion distance

Value

1.099488

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.326103

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.040240

1-sigma variation

Unit

MOID

Value

0.023203

1-sigma variation

Unit

Orbit Period

Value

301.7193

1-sigma variation

Unit

U parameter

Value

6.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.30305E-9	-5.30278E-9	-2.25127E-7	2.77289E-9	-2.65675E-8	-3.71984E-7
e	-5.30278E-9	2.15808E-8	9.16210E-7	-1.12830E-8	1.08033E-7	1.51402E-6
i	-2.25127E-7	9.16210E-7	3.88980E-5	-4.79101E-7	4.58648E-6	6.42776E-5
Ω	2.77289E-9	-1.12830E-8	-4.79101E-7	5.96679E-9	-5.67073E-8	-7.91312E-7
ω	-2.65675E-8	1.08033E-7	4.58648E-6	-5.67073E-8	5.48375E-7	7.56702E-6
M	-3.71984E-7	1.51402E-6	6.42776E-5	-7.91312E-7	7.56702E-6	1.06236E-4

Date of computation: 2026-01-06 13:01 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

26.317

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

14 - 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

0.73506

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-12-17.512714

Unit

Source

[2]

Last Observation

Value

2026-01-06.14344

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

25 (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 2025YM6 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	1955-01-08 07:05	138.0	0.0432019	0.0304948	0.0046487
EARTH	1963-10-05 16:06	107.0	0.1675227	0.1606461	0.0025380
EARTH	1968-11-25 03:13	> 1 d	0.1505632	0.1478964	0.0009408
EARTH	1974-01-07 18:20	145.2	0.0340242	0.0269477	0.0026594
VENUS	1976-10-18 18:22	533.4	0.0418325	0.0398417	0.0009748
EARTH	1982-10-06 18:40	15.0	0.1491683	0.1490339	0.0000519
EARTH	1987-12-17 13:18	425.3	0.1141773	0.1119257	0.0007524
EARTH	1993-01-07 13:27	67.2	0.1272197	0.1190295	0.0027350
EARTH	2001-10-23 11:28	> 1 d	0.1554609	0.1546326	0.0003590
EARTH	2007-01-02 03:58	1026.6	0.0551531	0.0430291	0.0042241
EARTH	2015-10-07 01:40	96.2	0.1959932	0.1894285	0.0022364
EARTH	2020-11-13 21:42	729.1	0.1570091	0.1562357	0.0002646
EARTH	2026-01-05 09:04	< 1 min	0.0317068	0.0316463	0.0000202
EARTH	2039-11-04 06:06	> 1 d	0.1580667	0.1575806	0.0002508
EARTH	2044-12-29 20:52	1378.7	0.0701638	0.0581491	0.0041254
EARTH	2050-01-07 06:49	130.7	0.1486797	0.1333632	0.0051154
EARTH	2058-10-06 12:12	197.7	0.1487121	0.1487058	0.0000241
VENUS	2063-07-09 23:25	651.1	0.0464168	0.0427566	0.0013842
EARTH	2063-12-09 04:24	866.7	0.1310920	0.1289713	0.0007152
EARTH	2069-01-07 21:44	16.3	0.0635569	0.0613276	0.0007449
EARTH	2077-10-05 04:05	19.4	0.1584522	0.1567047	0.0005988
EARTH	2082-11-28 17:46	1406.6	0.1461197	0.1431170	0.0010200
EARTH	2088-01-08 05:39	144.1	0.0375988	0.0285315	0.0035179
VENUS	2092-06-09 06:36	1078.7	0.0439988	0.0412368	0.0015102
EARTH	2096-10-07 18:29	406.2	0.1479608	0.1479558	0.0000202
EARTH	2101-12-21 08:39	> 1 d	0.1037831	0.0957131	0.0027260
EARTH	2107-01-08 13:38	113.2	0.1464111	0.1346334	0.0039333
EARTH	2115-10-29 11:05	607.2	0.1555499	0.1554236	0.0000503
EARTH	2121-01-02 21:02	109.1	0.0530070	0.0513020	0.0005704
VENUS	2126-04-18 10:02	196.6	0.0466417	0.0451369	0.0005568

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
238.02857401	4.73529633	0.02320279	MINIMUM
122.72747669	273.50915021	0.14904084	MINIMUM
159.06971531	303.11904616	0.15827216	SADDLE
357.07299974	133.80360589	0.36103027	SADDLE
2.22066525	320.58335992	1.64722711	SADDLE
183.34112243	141.82336467	2.11139021	MAXIMUM

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MOID Plots

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