Asteroids

2025TN2 help

Last update: 2025-10-09 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.892

Aphelion (Q)

1.819

Eccentricity (e)

0.342

Inclination (i)

21.6

deg

Orbit period (P)

576.6

Earth MOID

0.00731

U parameter

7.4

Next Earth close approach

Date

2055-10-06

Nominal distance (from Earth center)

0.04925

7367635

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.6

mag

Diameter

20 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-10-04

Observatory

Pan-STARRS 1, 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

1.355722

1-sigma variation

0.000446

Unit

Eccentricity (e)

Value

0.341699

1-sigma variation

0.000226

Unit

Inclination (i)

Value

21.5527

1-sigma variation

0.0096

Unit

Long. of Ascending Node (Ω)

Value

195.2480

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

236.6204

1-sigma variation

0.0109

Unit

Mean Anomaly (M)

Value

358.83960

1-sigma variation

0.00867

Unit

Perihelion distance

Value

0.892474

1-sigma variation

Unit

Aphelion distance

Value

1.818971

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.472951

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.008560

1-sigma variation

Unit

MOID

Value

0.007306

1-sigma variation

Unit

Orbit Period

Value

576.5734

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.98716E-7	1.00526E-7	4.29115E-6	6.55427E-8	-4.84828E-6	3.86481E-6
e	1.00526E-7	5.08537E-8	2.17080E-6	3.31573E-8	-2.45256E-6	1.95509E-6
i	4.29115E-6	2.17080E-6	9.26657E-5	1.41538E-6	-1.04692E-4	8.34568E-5
Ω	6.55427E-8	3.31573E-8	1.41538E-6	2.16239E-8	-1.59887E-6	1.27465E-6
ω	-4.84828E-6	-2.45256E-6	-1.04692E-4	-1.59887E-6	1.18309E-4	-9.43012E-5
M	3.86481E-6	1.95509E-6	8.34568E-5	1.27465E-6	-9.43012E-5	7.51690E-5

Date of computation: 2025-10-09 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

25.637

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

20 - 40*

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

0.319674

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-10-04.37753

Unit

Source

[2]

Last Observation

Value

2025-10-09.032507

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

46 (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 2025TN2 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	1960-10-11 22:16	> 1 w	0.0495148	0.0053389	0.2515625
EARTH	2006-10-06 22:34	> 1 d	0.0423532	0.0063276	0.0563655
EARTH	2025-10-08 22:12	< 1 s	0.0089878	0.0089744	0.0000045
EARTH	2055-10-06 22:10	> 1 d	0.0492496	0.0069774	0.0869660
EARTH	2066-10-23 04:32	> 1 d	0.1920918	0.1405269	0.0172238
EARTH	2096-10-08 13:09	> 1 w	0.0128285	0.0084975	0.2102301
EARTH	2107-10-11 22:09	> 1 w	0.0194664	0.0084009	0.4053715

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
319.12382194	275.47591075	0.00730571	MINIMUM
66.45287466	57.96953843	0.30011998	MINIMUM
24.67020256	5.23252335	0.36174495	SADDLE
190.17922069	155.78150691	0.91528211	SADDLE
3.72889526	154.64048174	1.88404723	SADDLE
175.33245816	324.96556650	2.77550000	MAXIMUM

Download:

MOID Plots

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