Asteroids

2025TK1 help

Last update: 2025-10-04 13:00 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.958

Aphelion (Q)

1.734

Eccentricity (e)

0.288

Inclination (i)

14.4

deg

Orbit period (P)

570.4

Earth MOID

0.03399

U parameter

7.8

Next Earth close approach

Date

2050-09-24

Nominal distance (from Earth center)

0.1077

16112348

Maximum Brightness

22.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.7

mag

Diameter

30 - 70*

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

1.346090

1-sigma variation

0.000923

Unit

Eccentricity (e)

Value

0.287960

1-sigma variation

0.000518

Unit

Inclination (i)

Value

14.3782

1-sigma variation

0.0185

Unit

Long. of Ascending Node (Ω)

Value

193.5643

1-sigma variation

0.0017

Unit

Arg. of Perihelion (ω)

Value

129.4456

1-sigma variation

0.0074

Unit

Mean Anomaly (M)

Value

57.61695

1-sigma variation

0.06899

Unit

Perihelion distance

Value

0.958470

1-sigma variation

Unit

Aphelion distance

Value

1.733711

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.509626

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.043693

1-sigma variation

Unit

MOID

Value

0.033993

1-sigma variation

Unit

Orbit Period

Value

570.4397

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.52542E-7	4.78425E-7	1.70305E-5	1.53427E-6	6.83471E-6	-6.36976E-5
e	4.78425E-7	2.68493E-7	9.55208E-6	8.60894E-7	3.83344E-6	-3.57452E-5
i	1.70305E-5	9.55208E-6	3.42965E-4	3.07108E-5	1.36885E-4	-1.27228E-3
Ω	1.53427E-6	8.60894E-7	3.07108E-5	2.76311E-6	1.23008E-5	-1.14626E-4
ω	6.83471E-6	3.83344E-6	1.36885E-4	1.23008E-5	5.53875E-5	-5.10884E-4
M	-6.36976E-5	-3.57452E-5	-1.27228E-3	-1.14626E-4	-5.10884E-4	4.75929E-3

Date of computation: 2025-10-04 13:00 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

24.747

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

30 - 70*

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

0.576673

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-10-02.327668

Unit

Source

[2]

Last Observation

Value

2025-10-04.329534

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

43 (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 2025TK1 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	1964-10-08 13:16	> 1 d	0.1213655	0.0301051	0.1014794
EARTH	1975-09-07 22:48	> 1 w	0.1990454	0.0404996	0.1177291
EARTH	2000-09-27 13:25	> 1 w	0.0688579	0.0318199	0.1331133
EARTH	2025-09-30 18:15	< 1 min	0.0402417	0.0400753	0.0000554
EARTH	2050-09-24 03:24	> 1 w	0.1077044	0.0227113	0.1423797
EARTH	2089-10-05 10:48	> 1 w	0.0581104	0.0319062	0.1089280
EARTH	2114-10-06 21:11	> 1 w	0.0588905	0.0313732	0.1274695

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
34.88423799	268.63127211	0.03399258	MINIMUM
310.59877733	157.17199165	0.25271601	MINIMUM
325.18566021	175.70124155	0.25460882	SADDLE
171.81840197	36.11386816	0.79129283	SADDLE
355.13834607	36.62309051	1.93600154	SADDLE
180.87819345	222.85194821	2.73543519	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out