Asteroids

2025QM23 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.949

Aphelion (Q)

1.592

Eccentricity (e)

0.253

Inclination (i)

5.9

deg

Orbit period (P)

523.2

Earth MOID

0.00881

U parameter

7.3

Next Earth close approach

Date

2035-09-12

Nominal distance (from Earth center)

0.15372

22996545

Maximum Brightness

25.6

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

2025-08-31

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

1.270710

1-sigma variation

0.000391

Unit

Eccentricity (e)

Value

0.253234

1-sigma variation

0.000270

Unit

Inclination (i)

Value

5.9259

1-sigma variation

0.0050

Unit

Long. of Ascending Node (Ω)

Value

340.2823

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

308.5705

1-sigma variation

0.0002

Unit

Mean Anomaly (M)

Value

223.64131

1-sigma variation

0.10744

Unit

Perihelion distance

Value

0.948923

1-sigma variation

Unit

Aphelion distance

Value

1.592497

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.017697

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.421614

1-sigma variation

Unit

MOID

Value

0.008813

1-sigma variation

Unit

Orbit Period

Value

523.2004

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.52689E-7	1.05633E-7	1.97318E-6	1.59512E-7	-8.90646E-8	-4.19837E-5
e	1.05633E-7	7.30796E-8	1.36509E-6	1.10353E-7	-6.16261E-8	-2.90452E-5
i	1.97318E-6	1.36509E-6	2.54994E-5	2.06139E-6	-1.15126E-6	-5.42551E-4
Ω	1.59512E-7	1.10353E-7	2.06139E-6	1.66681E-7	-9.30568E-8	-4.38597E-5
ω	-8.90646E-8	-6.16261E-8	-1.15126E-6	-9.30568E-8	5.55018E-8	2.44877E-5
M	-4.19837E-5	-2.90452E-5	-5.42551E-4	-4.38597E-5	2.44877E-5	1.15439E-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

26.872

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

262

Unit

Source

[1]

Normalized RMS of residuals

Value

0.591431

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-30.559839

Unit

Source

[2]

Last Observation

Value

2025-09-18.348791

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

41 (2)

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 2025QM23 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	1969-08-09 04:30	> 1 mo	0.0729019	0.0089683	0.2099403
EARTH	1982-05-05 18:04	> 1 d	0.1925086	0.1012488	0.0795925
EARTH	1992-08-20 07:20	> 1 w	0.0444102	0.0058092	0.0805389
EARTH	2015-05-25 03:13	> 1 d	0.1018879	0.1012359	0.0027935
EARTH	2025-08-29 03:34	< 1 min	0.0093301	0.0093043	0.0000086
EARTH	2035-09-12 12:47	> 1 d	0.1537224	0.0681526	0.0285255
EARTH	2058-05-15 18:26	> 1 d	0.1115068	0.1038923	0.0224214
EARTH	2068-07-02 09:04	> 1 mo	0.1103455	0.1053280	0.0097778
EARTH	2078-08-22 00:38	> 1 w	0.0410383	0.0049211	0.0717722
EARTH	2088-08-28 15:28	> 1 w	0.0095249	0.0079177	0.0654082
EARTH	2098-05-30 20:33	> 1 mo	0.1092188	0.1069318	0.5604016
EARTH	2115-09-16 03:15	> 1 mo	0.1912552	0.0023329	10.6003811
EARTH	2125-08-19 23:19	> 1 mo	0.0511057	0.0011983	9.9613448

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
37.42262697	235.73878778	0.00865384	MINIMUM
321.03559778	137.55391345	0.10356325	MINIMUM
346.32652800	169.77864773	0.11271638	SADDLE
177.94890883	6.01989875	0.61734553	SADDLE
358.98215893	6.46533326	1.93081792	SADDLE
180.12247248	187.67913261	2.60845235	MAXIMUM

Download:

MOID Plots

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