Asteroids

2025QT12 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.901

Aphelion (Q)

4.023

Eccentricity (e)

0.634

Inclination (i)

7.3

deg

Orbit period (P)

1410.9

Earth MOID

0.00174

U parameter

7.3

Next Earth close approach

Date

2052-08-31

Nominal distance (from Earth center)

0.00462

690856

Maximum Brightness

19.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

8 - 17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-08-29

Observatory

MAPS, San Pedro de Atacama

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

2.461870

1-sigma variation

0.001815

Unit

Eccentricity (e)

Value

0.633981

1-sigma variation

0.000280

Unit

Inclination (i)

Value

7.2581

1-sigma variation

0.0023

Unit

Long. of Ascending Node (Ω)

Value

337.6982

1-sigma variation

3.744E-5

Unit

Arg. of Perihelion (ω)

Value

44.5719

1-sigma variation

0.0007

Unit

Mean Anomaly (M)

Value

63.52596

1-sigma variation

0.06922

Unit

Perihelion distance

Value

0.901092

1-sigma variation

Unit

Aphelion distance

Value

4.022649

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.004364

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.694682

1-sigma variation

Unit

MOID

Value

0.001736

1-sigma variation

Unit

Orbit Period

Value

1410.9000

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.29365E-6	5.08591E-7	4.18770E-6	6.78575E-8	-1.35390E-6	-1.25617E-4
e	5.08591E-7	7.85344E-8	6.46646E-7	1.04783E-8	-2.09054E-7	-1.93972E-5
i	4.18770E-6	6.46646E-7	5.32470E-6	8.62847E-8	-1.72130E-6	-1.59715E-4
Ω	6.78575E-8	1.04783E-8	8.62847E-8	1.40186E-9	-2.78548E-8	-2.58803E-6
ω	-1.35390E-6	-2.09054E-7	-1.72130E-6	-2.78548E-8	5.60943E-7	5.16359E-5
M	-1.25617E-4	-1.93972E-5	-1.59715E-4	-2.58803E-6	5.16359E-5	4.79091E-3

Date of computation: 2026-03-17 23:26 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

27.732

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

8 - 17*

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

259

Unit

Source

[1]

Normalized RMS of residuals

Value

0.778991

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-29.10238

Unit

Source

[2]

Last Observation

Value

2025-08-31.970504

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

35 (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 2025QT12 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	2021-11-04 09:03	> 1 d	0.1287876	0.1274089	0.0022918
EARTH	2025-08-31 17:15	< 1 s	0.0034682	0.0034643	0.0000013
EARTH	2052-08-31 09:05	> 1 w	0.0046181	0.0003126	0.1510454
EARTH	2115-10-30 02:08	> 1 mo	0.1205434	0.1205127	2.9849052
EARTH	2119-09-06 10:18	> 1 mo	0.0131473	0.0103278	151.9436701
EARTH	2123-08-18 12:27	> 1 mo	0.1800404	0.0001842	1187.2515916

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
338.42977279	237.97358426	0.00179946	MINIMUM
17.08248797	316.80762745	0.12332119	MINIMUM
5.04924667	292.42174338	0.13141698	SADDLE
358.96779042	99.66662749	1.90344649	SADDLE
179.89126741	100.45879227	3.02406819	SADDLE
179.59425478	280.31960957	5.01710894	MAXIMUM

Download:

MOID Plots

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