Asteroids

2025YQ12 help

Last update: 2026-01-28 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.936

Aphelion (Q)

1.249

Eccentricity (e)

0.143

Inclination (i)

1.8

deg

Orbit period (P)

417.4

Earth MOID

0.00688

U parameter

6.4

Next Earth close approach

Date

2026-07-26

Nominal distance (from Earth center)

0.17901

26779863

Maximum Brightness

23.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.3

mag

Diameter

23 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-12-28

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

1.092978

1-sigma variation

0.000067

Unit

Eccentricity (e)

Value

0.143170

1-sigma variation

0.000083

Unit

Inclination (i)

Value

1.7528

1-sigma variation

0.0011

Unit

Long. of Ascending Node (Ω)

Value

81.5563

1-sigma variation

0.0009

Unit

Arg. of Perihelion (ω)

Value

99.0497

1-sigma variation

0.0035

Unit

Mean Anomaly (M)

Value

259.60437

1-sigma variation

0.00790

Unit

Perihelion distance

Value

0.936496

1-sigma variation

Unit

Aphelion distance

Value

1.249460

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.110986

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.029637

1-sigma variation

Unit

MOID

Value

0.006880

1-sigma variation

Unit

Orbit Period

Value

417.3647

1-sigma variation

Unit

U parameter

Value

6.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.45271E-9	5.52978E-9	7.16358E-8	6.17234E-8	2.30778E-7	5.26896E-7
e	5.52978E-9	6.86746E-9	8.89665E-8	7.66673E-8	2.86622E-7	6.54323E-7
i	7.16358E-8	8.89665E-8	1.15264E-6	9.94260E-7	3.71287E-6	8.47582E-6
Ω	6.17234E-8	7.66673E-8	9.94260E-7	8.69795E-7	3.19216E-6	7.29846E-6
ω	2.30778E-7	2.86622E-7	3.71287E-6	3.19216E-6	1.19770E-5	2.73021E-5
M	5.26896E-7	6.54323E-7	8.47582E-6	7.29846E-6	2.73021E-5	6.23566E-5

Date of computation: 2026-01-28 12:45 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

25.349

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

23 - 50*

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

0.519926

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-12-22.289523

Unit

Source

[2]

Last Observation

Value

2026-01-28.104016

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

48 (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 2025YQ12 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	1955-01-22 11:25	> 1 d	0.0875843	0.0200941	0.1341331
EARTH	1963-03-19 21:05	> 1 mo	0.0645942	0.0352443	0.0115003
EARTH	1963-07-03 09:49	> 1 mo	0.1379041	0.0393870	0.0488037
EARTH	1971-06-07 00:32	> 1 d	0.0549362	0.0093362	0.0610424
EARTH	1986-01-27 17:26	> 1 d	0.0296995	0.0215200	0.0158620
EARTH	1986-08-09 06:11	> 1 w	0.1971338	0.1710374	0.0087183
EARTH	1994-03-09 23:39	> 1 w	0.0610455	0.0412014	0.0069035
EARTH	1994-07-12 18:40	> 1 w	0.1497206	0.1092598	0.0136249
EARTH	2001-12-03 07:06	837.5	0.1763768	0.1738062	0.0008570
EARTH	2002-05-26 04:46	871.2	0.0233347	0.0177895	0.0018654
EARTH	2009-12-26 02:35	> 1 w	0.1289280	0.1166312	0.0041278
EARTH	2010-04-05 01:18	> 1 d	0.0668800	0.0649116	0.0006644
EARTH	2018-02-03 14:55	> 1 d	0.0358109	0.0268716	0.0032990
EARTH	2018-07-25 21:05	> 1 d	0.1757812	0.1688300	0.0023190
EARTH	2026-01-31 16:44	< 1 min	0.0307969	0.0307422	0.0000182
EARTH	2026-07-26 00:01	10.1	0.1790123	0.1786892	0.0001077
EARTH	2034-03-24 07:06	> 1 d	0.0661364	0.0655477	0.0002005
EARTH	2041-12-01 09:32	> 1 d	0.1709486	0.1630601	0.0026389
EARTH	2042-05-17 08:27	> 1 d	0.0335387	0.0210364	0.0041967
EARTH	2049-12-13 20:14	> 1 w	0.1434877	0.1107460	0.0111276
EARTH	2050-04-14 02:31	> 1 w	0.0624345	0.0467436	0.0052882
EARTH	2058-02-24 09:30	> 1 w	0.0583315	0.0320551	0.0093610
EARTH	2058-07-11 22:16	> 1 w	0.1567739	0.1180516	0.0130058
EARTH	2066-01-30 09:26	991.5	0.0355482	0.0320576	0.0011994
EARTH	2066-07-20 21:52	695.9	0.1757578	0.1730822	0.0008919
EARTH	2074-03-06 06:47	> 1 w	0.0629529	0.0489339	0.0048523
EARTH	2074-07-02 16:23	> 1 w	0.1459749	0.1065786	0.0132738
EARTH	2081-12-06 22:41	> 1 w	0.1527720	0.1139163	0.0132835
EARTH	2082-04-21 10:07	> 1 w	0.0559407	0.0258494	0.0101037
EARTH	2089-11-28 02:53	> 1 d	0.1678348	0.1572340	0.0035422
EARTH	2090-05-09 14:23	> 1 d	0.0388329	0.0211960	0.0059101
EARTH	2098-03-17 23:01	> 1 w	0.0671308	0.0660100	0.0003947
EARTH	2098-06-18 23:54	> 1 w	0.1299725	0.1031322	0.0090235
EARTH	2106-01-26 17:52	> 1 d	0.0341876	0.0236535	0.0041099
EARTH	2106-07-19 02:34	> 1 d	0.1768984	0.1682066	0.0028991
EARTH	2114-02-01 16:41	> 1 d	0.0427203	0.0355941	0.0024494
EARTH	2114-07-14 02:45	> 1 d	0.1706575	0.1659040	0.0015857
EARTH	2121-12-14 17:36	> 1 w	0.1342236	0.1186147	0.0052462
EARTH	2122-03-31 05:51	> 1 w	0.0644886	0.0610293	0.0011680

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
60.98840046	147.22407324	0.00688040	MINIMUM
311.70822292	24.13034071	0.02146434	MINIMUM
5.80819238	84.96095767	0.06826977	SADDLE
185.11811797	264.53013117	0.24859569	SADDLE
7.27525885	266.65015362	1.93910860	SADDLE
185.50986999	84.86762822	2.24753313	MAXIMUM

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MOID Plots

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