Asteroids

2025TB12 help

Last update: 2026-07-30 14:25 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.946

Aphelion (Q)

1.797

Eccentricity (e)

0.310

Inclination (i)

1.7

deg

Orbit period (P)

586.6

Earth MOID

0.00192

U parameter

7.2

Next Earth close approach

Date

2034-01-15

Nominal distance (from Earth center)

0.02814

4209881

Maximum Brightness

21.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.2

mag

Diameter

15 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-10-15

Observatory

Altay Astronomical Observatory

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

1.371353

1-sigma variation

0.000374

Unit

Eccentricity (e)

Value

0.310254

1-sigma variation

0.000202

Unit

Inclination (i)

Value

1.7238

1-sigma variation

0.0010

Unit

Long. of Ascending Node (Ω)

Value

223.1498

1-sigma variation

0.0007

Unit

Arg. of Perihelion (ω)

Value

220.0207

1-sigma variation

0.0013

Unit

Mean Anomaly (M)

Value

111.90164

1-sigma variation

0.04338

Unit

Perihelion distance

Value

0.945885

1-sigma variation

Unit

Aphelion distance

Value

1.796820

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.618469

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.009164

1-sigma variation

Unit

MOID

Value

0.001916

1-sigma variation

Unit

Orbit Period

Value

586.5731

1-sigma variation

Unit

U parameter

Value

7.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.40078E-7	7.55279E-8	3.57014E-7	2.61697E-7	-4.78850E-7	-1.62362E-5
e	7.55279E-8	4.07233E-8	1.92496E-7	1.41102E-7	-2.58177E-7	-8.75430E-6
i	3.57014E-7	1.92496E-7	9.09975E-7	6.66771E-7	-1.22008E-6	-4.13809E-5
Ω	2.61697E-7	1.41102E-7	6.66771E-7	4.90075E-7	-8.95848E-7	-3.03328E-5
ω	-4.78850E-7	-2.58177E-7	-1.22008E-6	-8.95848E-7	1.64272E-6	5.55006E-5
M	-1.62362E-5	-8.75430E-6	-4.13809E-5	-3.03328E-5	5.55006E-5	1.88191E-3

Date of computation: 2026-07-30 14:25 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

26.248

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

Unit

Source

[1]

Unobserved

Value

303

Unit

Source

[1]

Normalized RMS of residuals

Value

0.553956

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-10-15.89318

Unit

Source

[2]

Last Observation

Value

2025-11-06.39042

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

79 (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 2025TB12 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	1962-10-20 07:30	> 1 d	0.1505267	0.0635632	0.0289899
EARTH	1971-01-26 23:00	> 1 w	0.0689539	0.0287414	0.0705912
EARTH	1992-01-27 16:36	> 1 d	0.0710861	0.0288664	0.0269837
EARTH	2004-10-23 10:01	> 1 d	0.1143200	0.0011540	0.0464013
EARTH	2025-11-04 23:33	< 1 min	0.0188038	0.0187693	0.0000115
EARTH	2034-01-15 00:25	> 1 d	0.0281413	0.0280961	0.0008904
EARTH	2062-10-19 23:21	> 1 w	0.1724980	0.0013986	0.3787935
EARTH	2070-11-25 01:24	> 1 mo	0.0306100	0.0006604	0.1821843
EARTH	2079-02-07 07:37	> 1 mo	0.1764972	0.0300252	0.7205967
EARTH	2099-11-05 09:08	> 1 mo	0.0217792	0.0029356	2.5797214
EARTH	2107-11-16 11:09	> 1 mo	0.0144271	0.0028527	20.0613954
MARS	2108-06-03 01:00	> 1 mo	0.0391982	0.0145516	3.0735652
EARTH	2116-02-05 20:28	> 1 mo	0.1381895	0.0291009	384.1795930

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
333.23965785	303.26289962	0.00191645	MINIMUM
23.54710841	10.63541056	0.02820436	MINIMUM
0.99316555	340.45667460	0.04301285	SADDLE
179.48699472	158.18277421	0.78158617	SADDLE
358.84017940	157.54898697	1.96142824	SADDLE
179.37446985	338.10661285	2.78135877	MAXIMUM

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MOID Plots

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