Asteroids

2025QR12 help

Last update: 2025-09-07 13:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.810

Aphelion (Q)

1.091

Eccentricity (e)

0.148

Inclination (i)

9.8

deg

Orbit period (P)

338.6

Earth MOID

0.03245

U parameter

4.6

Next Earth close approach

Date

2027-01-11

Nominal distance (from Earth center)

0.16907

25292396

Maximum Brightness

23.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.7

mag

Diameter

50 - 110*

Taxonomic type

Rotation period (T)

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

0.950786

1-sigma variation

0.000003

Unit

Eccentricity (e)

Value

0.147685

1-sigma variation

0.000083

Unit

Inclination (i)

Value

9.8194

1-sigma variation

0.0068

Unit

Long. of Ascending Node (Ω)

Value

165.5892

1-sigma variation

0.0009

Unit

Arg. of Perihelion (ω)

Value

39.8504

1-sigma variation

0.0096

Unit

Mean Anomaly (M)

Value

204.96936

1-sigma variation

0.01876

Unit

Perihelion distance

Value

0.810369

1-sigma variation

Unit

Aphelion distance

Value

1.091203

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.157759

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.040858

1-sigma variation

Unit

MOID

Value

0.032450

1-sigma variation

Unit

Orbit Period

Value

338.6277

1-sigma variation

Unit

U parameter

Value

4.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.35409E-12	-2.07736E-10	-1.68920E-8	2.27478E-9	-2.38127E-8	4.66207E-8
e	-2.07736E-10	6.81165E-9	5.59694E-7	-7.63252E-8	7.94515E-7	-1.54790E-6
i	-1.68920E-8	5.59694E-7	4.60268E-5	-6.28353E-6	6.53535E-5	-1.27283E-4
Ω	2.27478E-9	-7.63252E-8	-6.28353E-6	8.59231E-7	-8.92386E-6	1.73729E-5
ω	-2.38127E-8	7.94515E-7	6.53535E-5	-8.92386E-6	9.28455E-5	-1.80790E-4
M	4.66207E-8	-1.54790E-6	-1.27283E-4	1.73729E-5	-1.80790E-4	3.52090E-4

Date of computation: 2025-09-07 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

23.726

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

50 - 110*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.584121

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-29.369024

Unit

Source

[2]

Last Observation

Value

2025-09-06.91347

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

129 (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

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 2025QR12 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1953-08-30 19:14	9.5	0.1670771	0.1647301	0.0007828
EARTH	1955-01-24 14:20	149.9	0.1349040	0.1344803	0.0001446
EARTH	1965-09-05 04:28	84.8	0.0423493	0.0412639	0.0003675
EARTH	1966-03-23 04:13	257.1	0.1911941	0.1909822	0.0000710
EARTH	1977-11-20 01:07	114.9	0.1782147	0.1777608	0.0001514
EARTH	1978-02-01 04:13	38.7	0.1327177	0.1325711	0.0000489
EARTH	1988-08-31 03:35	4.7	0.0414694	0.0414003	0.0000231
EARTH	1990-01-05 23:26	54.1	0.1866749	0.1862783	0.0001328
EARTH	2000-08-30 09:39	13.1	0.0516721	0.0509099	0.0002551
EARTH	2002-01-12 02:24	108.6	0.1616271	0.1608325	0.0002679
EARTH	2013-10-15 23:00	182.2	0.1637768	0.1636041	0.0000578
EARTH	2014-02-18 16:56	243.8	0.1404485	0.1399547	0.0001664
EARTH	2025-08-31 15:52	< 1 min	0.0348435	0.0347762	0.0000225
EARTH	2027-01-11 03:30	55.0	0.1690692	0.1687686	0.0001009
EARTH	2038-09-20 10:10	80.5	0.1117834	0.1110604	0.0002412
EARTH	2039-03-10 18:28	92.0	0.1685237	0.1683528	0.0000570
EARTH	2050-08-29 21:14	2.8	0.1477937	0.1463076	0.0004956
EARTH	2052-02-03 22:34	96.8	0.1287083	0.1285640	0.0000485
EARTH	2063-09-03 12:13	72.3	0.0376276	0.0368254	0.0002762
EARTH	2075-08-30 10:29	15.5	0.1474811	0.1434294	0.0013522
EARTH	2077-01-29 13:59	382.1	0.1297229	0.1293290	0.0001465
EARTH	2088-10-15 19:47	1186.1	0.1642296	0.1606547	0.0012125
EARTH	2089-02-16 20:10	1267.2	0.1374827	0.1360627	0.0005344
EARTH	2100-09-14 18:26	> 1 d	0.0920320	0.0774126	0.0050661
EARTH	2101-03-15 23:05	> 1 d	0.1763505	0.1704621	0.0021842
EARTH	2112-08-30 19:05	132.1	0.0722858	0.0567490	0.0053789
EARTH	2114-01-19 23:43	970.0	0.1420016	0.1368652	0.0019855
EARTH	2125-09-19 17:10	508.9	0.1092006	0.1063796	0.0009461

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
126.95276449	238.50670763	0.03244959	MINIMUM
294.96934869	30.96889283	0.12876078	MINIMUM
219.88049349	319.25496866	0.18288502	SADDLE
27.51159110	134.72565087	0.23862236	SADDLE
10.47799419	294.76347447	1.80198468	SADDLE
183.14434420	107.30417824	2.09323797	MAXIMUM

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MOID Plots

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