Asteroids

2025QM9 help

Last update: 2026-06-04 23:11 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.982

Aphelion (Q)

1.027

Eccentricity (e)

0.023

Inclination (i)

21.5

deg

Orbit period (P)

367.8

Earth MOID

0.00001

U parameter

6.3

Next Earth close approach

Date

2026-08-28

Nominal distance (from Earth center)

0.0393

5879819

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.3

mag

Diameter

15 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-08-27

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

1.004600

1-sigma variation

0.000043

Unit

Eccentricity (e)

Value

0.022604

1-sigma variation

0.000020

Unit

Inclination (i)

Value

21.4576

1-sigma variation

0.0064

Unit

Long. of Ascending Node (Ω)

Value

154.1753

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

48.4126

1-sigma variation

0.0972

Unit

Mean Anomaly (M)

Value

49.25435

1-sigma variation

0.11646

Unit

Perihelion distance

Value

0.981892

1-sigma variation

Unit

Aphelion distance

Value

1.027308

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.000004

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.008604

1-sigma variation

Unit

MOID

Value

0.000008

1-sigma variation

Unit

Orbit Period

Value

367.7799

1-sigma variation

Unit

U parameter

Value

6.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.84974E-9	-8.36163E-10	2.75730E-7	3.16498E-9	4.16646E-6	-4.99598E-6
e	-8.36163E-10	3.88741E-10	-1.25934E-7	-1.44183E-9	-1.85806E-6	2.23131E-6
i	2.75730E-7	-1.25934E-7	4.13934E-5	4.74478E-7	6.17850E-4	-7.41291E-4
Ω	3.16498E-9	-1.44183E-9	4.74478E-7	5.44167E-9	7.10107E-6	-8.51859E-6
ω	4.16646E-6	-1.85806E-6	6.17850E-4	7.10107E-6	9.44480E-3	-1.13173E-2
M	-4.99598E-6	2.23131E-6	-7.41291E-4	-8.51859E-6	-1.13173E-2	1.35621E-2

Date of computation: 2026-06-04 23:11 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

26.315

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

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

1.0

Unit

Source

[1]

Unobserved

Value

318

Unit

Source

[1]

Normalized RMS of residuals

Value

0.749039

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-27.270868

Unit

Source

[2]

Last Observation

Value

2025-08-28.24399

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

31 (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

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 2025QM9 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	2019-02-18 11:40	> 1 d	0.1916359	0.0238046	0.0561472
EARTH	2020-02-20 06:12	> 1 d	0.1356914	0.0053770	0.0451937
EARTH	2021-02-20 20:53	1267.3	0.0831610	0.0046913	0.0330773
EARTH	2021-08-23 08:30	362.9	0.1641153	0.0898771	0.0247972
EARTH	2022-02-22 08:50	759.4	0.0361816	0.0040569	0.0191321
EARTH	2022-08-24 12:54	105.6	0.1231118	0.0967991	0.0089559
EARTH	2023-02-23 13:40	31.0	0.0035815	0.0035602	0.0000816
EARTH	2023-08-25 13:39	25.8	0.0987305	0.0966318	0.0006996
EARTH	2024-02-25 03:09	23.7	0.0489676	0.0473628	0.0005353
EARTH	2024-08-26 01:07	14.1	0.0506549	0.0494943	0.0003870
EARTH	2025-02-25 19:03	12.9	0.0985862	0.0981006	0.0001620
EARTH	2025-08-27 09:35	< 1 min	0.0089374	0.0089293	0.0000027
EARTH	2026-02-27 07:45	< 1 min	0.1369691	0.1362329	0.0002455
EARTH	2026-08-28 14:06	14.2	0.0393042	0.0381529	0.0003841
EARTH	2027-02-28 17:34	10.4	0.1834137	0.1815646	0.0006164
EARTH	2027-08-29 23:43	24.9	0.0889152	0.0867830	0.0007108
EARTH	2028-08-30 13:24	33.3	0.1437568	0.1407647	0.0009974
EARTH	2117-02-19 15:40	567.9	0.1603207	0.1114079	0.0163058
EARTH	2118-02-21 12:53	582.3	0.1030229	0.0563785	0.0155531
EARTH	2118-08-24 09:27	333.7	0.1904369	0.1471156	0.0144444
EARTH	2119-02-23 05:34	563.2	0.0501926	0.0078963	0.0141914
EARTH	2119-08-25 14:18	291.8	0.1428840	0.1060861	0.0122662
EARTH	2120-02-24 17:16	428.3	0.0057927	0.0020567	0.0102735
EARTH	2120-08-24 08:06	> 1 d	0.1273500	0.0428798	0.0393192
EARTH	2121-02-23 18:29	> 1 d	0.0113548	0.0016302	0.0621887
EARTH	2121-08-23 07:21	83.8	0.1476077	0.0630461	0.0352019
EARTH	2122-02-23 01:15	21.1	0.0453160	0.0402155	0.0017010
EARTH	2122-08-21 22:30	> 1 d	0.1852222	0.1059771	0.0280012
EARTH	2123-02-22 02:24	> 1 d	0.0878312	0.0010109	0.0659131
EARTH	2124-02-20 23:37	> 1 d	0.1353543	0.0008129	0.1268874
EARTH	2125-02-18 17:17	> 1 d	0.1863093	0.0005820	0.1846162

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
312.13926719	52.07984116	0.00103593	MINIMUM
130.11225373	233.57429556	0.00778410	MINIMUM
41.01848053	142.95645779	0.37359432	SADDLE
221.25676804	322.67391963	0.37532378	SADDLE
38.68352579	320.38416481	1.93963276	SADDLE
227.79007509	149.49194936	1.99999669	SADDLE
283.72808379	205.41893967	2.00755685	MAXIMUM
154.90188152	76.57467580	2.01560762	MAXIMUM

Download:

MOID Plots

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